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WO2023000234A1 - 电池、用电设备、制备电池的方法和设备 - Google Patents

电池、用电设备、制备电池的方法和设备 Download PDF

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Publication number
WO2023000234A1
WO2023000234A1 PCT/CN2021/107721 CN2021107721W WO2023000234A1 WO 2023000234 A1 WO2023000234 A1 WO 2023000234A1 CN 2021107721 W CN2021107721 W CN 2021107721W WO 2023000234 A1 WO2023000234 A1 WO 2023000234A1
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WO
WIPO (PCT)
Prior art keywords
battery
battery cells
rows
separator
cells
Prior art date
Application number
PCT/CN2021/107721
Other languages
English (en)
French (fr)
Inventor
孙占宇
王磊
陈兴地
王鹏
Original Assignee
宁德时代新能源科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to CN202180002355.2A priority Critical patent/CN115843398B/zh
Priority to EP21758579.3A priority patent/EP4148876B8/en
Priority to PCT/CN2021/107721 priority patent/WO2023000234A1/zh
Priority to HUE21758579A priority patent/HUE069122T2/hu
Priority to PL21758579.3T priority patent/PL4148876T3/pl
Priority to KR1020217028055A priority patent/KR102613200B1/ko
Priority to JP2021552651A priority patent/JP7491939B2/ja
Application filed by 宁德时代新能源科技股份有限公司 filed Critical 宁德时代新能源科技股份有限公司
Priority to US17/464,048 priority patent/US12183908B2/en
Priority to CN202180073908.3A priority patent/CN116349072B/zh
Priority to PCT/CN2021/123404 priority patent/WO2023000511A1/zh
Priority to EP21950749.8A priority patent/EP4246691A4/en
Publication of WO2023000234A1 publication Critical patent/WO2023000234A1/zh
Priority to US18/333,292 priority patent/US20230327264A1/en
Priority to US18/944,879 priority patent/US20250070308A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/613—Cooling or keeping cold
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/61—Types of temperature control
    • H01M10/615—Heating or keeping warm
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/643—Cylindrical cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/64—Heating or cooling; Temperature control characterised by the shape of the cells
    • H01M10/647—Prismatic or flat cells, e.g. pouch cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/655—Solid structures for heat exchange or heat conduction
    • H01M10/6554—Rods or plates
    • H01M10/6555—Rods or plates arranged between the cells
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/658—Means for temperature control structurally associated with the cells by thermal insulation or shielding
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
    • H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
    • H01M50/213—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for cells having curved cross-section, e.g. round or elliptic
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/249—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders specially adapted for aircraft or vehicles, e.g. cars or trains
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
    • H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
    • H01M50/291—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs characterised by their shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/502—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing
    • H01M50/505—Interconnectors for connecting terminals of adjacent batteries; Interconnectors for connecting cells outside a battery casing comprising a single busbar
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/60—Heating or cooling; Temperature control
    • H01M10/65—Means for temperature control structurally associated with the cells
    • H01M10/653—Means for temperature control structurally associated with the cells characterised by electrically insulating or thermally conductive materials
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2220/00—Batteries for particular applications
    • H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Definitions

  • the present application relates to the technical field of batteries, in particular to a battery, an electrical device, a method and a device for preparing a battery.
  • the space utilization rate inside the battery affects the power and energy density of the battery, which in turn affects the performance of the battery. How to improve the performance of batteries is an urgent technical problem in battery technology.
  • the present application provides a battery, an electrical device, a method and a device for preparing the battery, which can increase the energy density of the battery while ensuring the structural strength of the battery, thereby improving the performance of the battery.
  • a battery including: a battery module and a box body, the battery module is accommodated in the box; the battery module includes: N rows of battery cells, and the battery cells in the N rows Each column of battery cells is arranged along the first direction, the N columns of battery cells are arranged along the second direction, N is an integer greater than 1, and the first direction is perpendicular to the second direction; N-1 separators , the separator extends along the first direction and is disposed between two adjacent rows of battery cells, and the separator is fixedly connected to each battery cell in the two rows of battery cells; wherein, The end of the partition in the first direction is provided with a fixing structure, and the partition is fixed to the box through the fixing structure.
  • a separator is provided between two adjacent rows of battery cells in the battery module, and the separator is fixedly connected to each battery cell in the two rows of battery cells.
  • a fixed structure is provided at the top, and the partition is fixed to the box body through the fixed structure.
  • the thickness of the separator may be 0.1-5mm, 0.2-2mm, 0.3-1mm, 0.1-0.5mm, or 0.2-0.4mm. Using the separator with this thickness can reduce the space occupied by the separator while ensuring the strength.
  • adjacent battery cells in each row of battery cells may also be bonded, for example, by structural adhesive.
  • the fixing effect of the battery cells can be further enhanced by the fixing between adjacent battery cells in each row of battery cells.
  • the battery includes a plurality of battery modules, the plurality of battery modules are arranged along the second direction, and there are gaps between adjacent battery modules.
  • a separator is provided between two rows of battery cells, and no separator is provided between adjacent battery modules. In this way, on the one hand, the separator inside the battery can be reduced as much as possible, and on the other hand, a certain gap can be formed between adjacent battery modules to provide expansion space for the battery cells.
  • the fixing structure includes a fixing plate, the fixing plate is fixedly connected to the end of the separator, and is connected to the battery cell located at the end of the separator. Fixed connection. In this way, the effect of fixing the battery cells can be further enhanced.
  • the fixing plate includes a first connecting portion extending along the first direction in a direction away from the battery module, and the first connecting portion is used for connecting the wall.
  • the fixed connection between the fixing plate and the wall of the box body can be realized, so that the load of the battery cell can be transferred to the wall of the box body, thereby ensuring the structural strength of the battery.
  • the first connecting portion may be formed by bending a fixing plate.
  • the first connection portion may be formed by bending an edge of the fixing plate close to the wall to which it is connected in a direction away from the battery module. In this way, the first connecting portion is integrated with the main body of the fixing plate, so that the connection performance can be enhanced.
  • the battery further includes: a first connecting bar extending along the second direction for connecting a plurality of the battery modules in the box; wherein , the fixing plate further includes a second connecting portion extending in a direction away from the battery module along the first direction, and the second connecting portion is used for connecting the first connecting bar.
  • the first connecting bar is connected through the second connecting part, so that the structural strength of the battery can be further ensured through the first connecting bar at a position away from the bottom wall of the box.
  • the second connecting portion may be formed by bending a fixing plate.
  • the second connecting portion may be formed by bending an edge of the fixing plate close to the first connecting bar in a direction away from the battery module. In this way, the second connecting portion is integrated with the main body of the fixing plate, so that the connection performance can be enhanced.
  • the fixing plate further includes a third connecting portion extending in a direction away from the battery module along the first direction, and the third connecting portion is used for connecting the fixing plate with the bulkhead.
  • the partition plate is connected through the third connecting portion, so that the fixed connection between the fixed plate and the partition plate can be realized, and the connection performance between the two can be ensured.
  • the third connecting portion may be formed by bending a fixing plate.
  • the third connection portion may be formed by bending an edge of the fixing plate close to the partition in a direction away from the battery module. In this way, the third connecting portion is integrated with the main body of the fixing plate, so that the connection performance can be enhanced.
  • the fixing plates corresponding to the plurality of battery modules are integrally structured.
  • the fixing plate corresponding to the multiple battery modules is a whole plate, through which the multiple battery modules are fixed on the box body, thereby improving the overall structural strength of the multiple battery modules.
  • a limiting strip corresponding to the battery modules is provided on the fixing plate, and the limiting strip is used to be inserted into a gap between adjacent battery modules. This can facilitate the installation of the battery module.
  • the ends of the separators protrude from the N rows of battery cells in the first direction
  • the fixing structure includes the ends of the separators A first protruding portion protruding from the N columns of battery cells in the first direction.
  • the load of the battery cell can be transferred to the wall of the box through the connection of the first protruding part to the wall of the box, thereby ensuring the structural strength of the battery.
  • the fixing structure further includes a first extension part, the first extension part is fixedly connected to the first protruding part and extends along the second direction, and the first extension part The part is used to connect the wall of the box.
  • the fixed connection between the separator and the wall of the box body can be realized, so that the load of the battery cell can be transferred to the wall of the box body, thereby ensuring the structural strength of the battery.
  • the first extension part and the first protruding part can be integrally formed, which can enhance connection performance.
  • the battery further includes: a first connecting bar extending along the second direction for connecting a plurality of the battery modules in the box; wherein , the fixing structure further includes a second extension portion, the second extension portion is fixedly connected with the first protruding portion and extends along the second direction, the second extension portion is used to connect the first protruding portion connecting strip.
  • the second extension part is connected to the first connection bar, so that the structural strength of the battery can be further ensured by the first connection bar at a position away from the bottom wall of the box.
  • the second extension part and the first protruding part can be integrally formed, which can enhance connection performance.
  • the battery module further includes: an attachment plate, the attachment plate extends along the first direction and is fixedly connected to the separator, the attachment plate extends along the first direction Two directions protrude from the separator and are attached to each battery cell in the two adjacent rows of battery cells. The fastening effect on the battery cells can be further enhanced by the attachment plate.
  • the attachment plate is fixedly connected to each battery cell in the two adjacent rows of battery cells. In this way, each battery cell is fixed by the attachment plate and the separator, so that the fixing effect can be further improved.
  • the attachment plate protrudes from the N rows of battery cells in the first direction
  • the fixing structure includes that the attachment plate protrudes in the first direction. Out of the second protruding portion of the battery cells in the N columns.
  • the load of the battery cell can be transferred to the wall of the box through the connection of the second protruding part to the wall of the box, thereby ensuring the structural strength of the battery.
  • the partition plate is integrally formed with the attachment plate. This improves the connection performance of the bulkhead to the attachment plate.
  • N is 2. In this way, fewer partitions can be arranged in the battery, but at the same time, it can be ensured that each battery cell can be fixed on the partition and connected to the box through the partition and the fixing structure.
  • the battery cell is a rectangular parallelepiped battery cell
  • the rectangular parallelepiped battery cell includes two opposite first side walls and two opposite second side walls, and the first The area of one side wall is larger than the area of the second side wall, and the partition is fixedly connected with the first side wall.
  • each row of battery cells are connected to form a row along the first direction; the separator is fixedly connected to the wide side wall of each battery cell, so that the separator can more easily receive the load of the battery cells , so as to facilitate the transfer of the load of the battery cell to the box.
  • the separator has an opening corresponding to the first side wall, and an area of the opening is smaller than an area of the first side wall. Setting the openings on the partition can reduce the profile of the partition, thereby reducing the weight of the partition.
  • the battery cell is a cylindrical battery cell
  • the separator is an S-shaped separator adapted to the side of the cylindrical battery cell, which can better connect each battery cell.
  • the separator is a heat insulation board, a cooling board or a heating board. In this way, heat insulation between the battery cells or cooling or heating of the battery cells can be realized while fixing the battery cells.
  • the partition is integrally formed with the box, which can improve the connection performance between the partition and the box.
  • the battery further includes: a confluence component, used for electrical connection with the battery cells; wherein, at least three battery cells in the battery module are connected to other batteries through the confluence component battery cells in the module.
  • More battery cells are connected to battery cells in other battery modules through the confluence component, and the connection performance between the battery modules can be enhanced through the confluence component.
  • the confluence component connects the battery cells in series along the second direction. In this way, each pair of adjacent battery cells between adjacent battery modules can be connected through the busbar, so that the connection performance between the battery modules can be enhanced.
  • the battery module is arranged on the bottom wall of the box; the battery further includes: a second connection bar, arranged on the bottom wall of the battery module away from the box The surface of the second connection bar extends along the second direction and is fixedly connected to the plurality of battery modules in the box.
  • the battery cells can be constrained in the second direction by the second connection bar to increase the structural strength of the battery and resist the expansion force of the battery cells.
  • an electric device including: the battery in the above first aspect or any possible implementation manner of the first aspect, where the battery is used to provide electric energy.
  • a method for preparing a battery including: providing a battery module, the battery module including: N rows of battery cells, each row of battery cells in the N rows of battery cells is arranged along a first direction , the N columns of battery cells are arranged along the second direction, N is an integer greater than 1, and the first direction is perpendicular to the second direction; N-1 separators, the separators are arranged along the first extending in a direction and arranged between two adjacent rows of battery cells, the separator is fixedly connected to each battery cell in the two rows of battery cells; wherein, the separator is on the first side
  • the upward end is provided with a fixing structure; a box body is provided; the battery module is accommodated in the box body, wherein the separator is fixed to the box body through the fixing structure.
  • a device for preparing a battery including a module for performing the method of the third aspect above.
  • a separator is provided between two adjacent rows of battery cells in the battery module, and the separator is fixedly connected to each battery cell in the two rows of battery cells.
  • a fixed structure is provided at the end, and the partition is fixed to the box through the fixed structure.
  • Fig. 1 is the schematic diagram of the vehicle of an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a battery according to an embodiment of the present application.
  • Fig. 3 is a schematic diagram of a battery cell according to an embodiment of the present application.
  • FIG. 4 is a schematic diagram of a battery according to an embodiment of the present application.
  • Fig. 5 is a schematic diagram of a battery module according to an embodiment of the present application.
  • FIG. 6 is a schematic diagram of a battery module according to an embodiment of the present application.
  • Fig. 7 is a schematic diagram of a battery according to an embodiment of the present application.
  • Fig. 8 is a schematic diagram of a battery module according to an embodiment of the present application.
  • FIG. 9 is a schematic diagram of a battery module according to an embodiment of the present application.
  • Fig. 10 is a schematic diagram of a battery module according to an embodiment of the present application.
  • Fig. 11 is a schematic diagram of a partition according to an embodiment of the present application.
  • Fig. 12 is a schematic diagram of an S-shaped partition according to an embodiment of the present application.
  • FIG. 13 is a schematic flow chart of a method for preparing a battery according to an embodiment of the present application.
  • Fig. 14 is a schematic block diagram of a device for preparing a battery according to an embodiment of the present application.
  • first, second, third, etc. are used for descriptive purposes only and should not be construed as indicating or implying relative importance. “Vertical” is not strictly vertical, but within the allowable range of error. “Parallel” is not strictly parallel, but within the allowable range of error.
  • connection should be interpreted in a broad sense, for example, it can be a fixed connection or a flexible connection. Disassembled connection, or integral connection; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in this application according to specific situations.
  • the battery cells may include lithium-ion secondary batteries, lithium-ion primary batteries, lithium-sulfur batteries, sodium-lithium-ion batteries, sodium-ion batteries, or magnesium-ion batteries, which are not limited in the embodiments of the present application.
  • the battery cell can be in the form of a cylinder, a flat body, a cuboid or other shapes, which is not limited in this embodiment of the present application.
  • Battery cells are generally divided into three types according to packaging methods: cylindrical battery cells, square square battery cells and pouch battery cells, which are not limited in this embodiment of the present application.
  • the battery mentioned in the embodiments of the present application refers to a single physical module including one or more battery cells to provide higher voltage and capacity.
  • batteries mentioned in this application may include battery packs and the like.
  • Batteries generally include a case for enclosing one or more battery cells. The box can prevent liquid or other foreign objects from affecting the charging or discharging of the battery cells.
  • the battery cell includes an electrode assembly and an electrolyte, and the electrode assembly is composed of a positive electrode sheet, a negative electrode sheet, and a separator.
  • a battery cell works primarily by moving metal ions between the positive and negative plates.
  • the positive electrode sheet includes a positive electrode current collector and a positive electrode active material layer.
  • the positive electrode active material layer is coated on the surface of the positive electrode current collector.
  • the current collector without the positive electrode active material layer protrudes from the current collector coated with the positive electrode active material layer.
  • the current collector coated with the positive electrode active material layer serves as the positive electrode tab.
  • the material of the positive electrode current collector can be aluminum, and the positive electrode active material can be lithium cobaltate, lithium iron phosphate, ternary lithium or lithium manganate.
  • the negative electrode sheet includes a negative electrode current collector and a negative electrode active material layer.
  • the negative electrode active material layer is coated on the surface of the negative electrode current collector.
  • the current collector coated with the negative electrode active material layer serves as the negative electrode tab.
  • the material of the negative electrode current collector may be copper, and the negative electrode active material may be carbon or silicon.
  • the number of positive pole tabs is multiple and stacked together, and the number of negative pole tabs is multiple and stacked together.
  • the material of the isolation film can be polypropylene (PP) or polyethylene (PE).
  • the electrode assembly may be a wound structure or a laminated structure, which is not limited in the embodiment of the present application.
  • the battery may include multiple battery cells, wherein the multiple battery cells may be connected in series, in parallel or in parallel, and the hybrid connection refers to a mixture of series and parallel connections.
  • a plurality of battery cells can be connected in series, parallel or mixed to form a battery module, and then a plurality of battery modules can be connected in series, parallel or mixed to form a battery. That is to say, multiple battery cells can directly form a battery, or can form a battery module first, and the battery module can form a battery.
  • the battery is further arranged in the electric device to provide electric energy for the electric device.
  • the embodiment of the present application provides a technical solution.
  • a separator is provided between two adjacent rows of battery cells in the battery module, and the separator is fixed to each battery cell in the two rows of battery cells. connected, and then fixed to the box through a fixed structure.
  • each battery cell in the battery is fixed to the box by the separator and the fixing structure, which can transfer its load to the box, ensuring the structural strength of the battery; in this case, the outside of the battery module can no longer
  • the side panels are installed, and there is no need to install beams and other structures in the middle of the box, which can maximize the space utilization rate inside the battery, thereby increasing the energy density of the battery. Therefore, the technical solutions of the embodiments of the present application can increase the energy density of the battery while ensuring the structural strength of the battery, thereby improving the performance of the battery.
  • batteries such as mobile phones, portable devices, notebook computers, battery cars, electric toys, electric tools, electric vehicles, ships and spacecraft, etc.
  • spacecraft include Airplanes, rockets, space shuttles and spaceships, etc.
  • FIG. 1 it is a schematic structural diagram of a vehicle 1 according to an embodiment of the present application.
  • the vehicle 1 can be a fuel vehicle, a gas vehicle or a new energy vehicle, and the new energy vehicle can be a pure electric vehicle, a hybrid vehicle or Extended range cars, etc.
  • a motor 40 , a controller 30 and a battery 10 can be arranged inside the vehicle 1 , and the controller 30 is used to control the battery 10 to supply power to the motor 40 .
  • the battery 10 may be provided at the bottom or front or rear of the vehicle 1 .
  • the battery 10 can be used for power supply of the vehicle 1 , for example, the battery 10 can be used as an operating power source of the vehicle 1 , for a circuit system of the vehicle 1 , for example, for starting, navigating and running power requirements of the vehicle 1 .
  • the battery 10 can not only be used as an operating power source for the vehicle 1 , but can also be used as a driving power source for the vehicle 1 , replacing or partially replacing fuel oil or natural gas to provide driving power for the vehicle 1 .
  • the battery 10 may include multiple battery cells.
  • FIG. 2 which is a schematic structural diagram of a battery 10 according to an embodiment of the present application
  • the battery 10 may include a plurality of battery cells 20 .
  • the battery 10 may further include a box body 11 , the inside of which is a hollow structure, and a plurality of battery cells 20 are accommodated in the box body 11 .
  • a plurality of battery cells 20 are placed in the case 11 after being connected in parallel, in series or in parallel.
  • the battery 10 may also include other structures, which will not be repeated here.
  • the battery 10 may also include a confluence part, which is used to realize electrical connection between a plurality of battery cells 20 , such as parallel connection, series connection or mixed connection.
  • the current-combining component can realize the electrical connection between the battery cells 20 by connecting the electrode terminals of the battery cells 20 .
  • the bus member may be fixed to the electrode terminal of the battery cell 20 by welding. The electric energy of the plurality of battery cells 20 can be further drawn out through the box through the conductive mechanism.
  • the conduction means can also belong to the current-collecting part.
  • the number of battery cells 20 can be set to any value.
  • a plurality of battery cells 20 can be connected in series, in parallel or in parallel to achieve greater capacity or power. Since the number of battery cells 20 included in each battery 10 may be large, for the convenience of installation, the battery cells 20 may be arranged in groups, and each group of battery cells 20 constitutes a battery module. The number of battery cells 20 included in the battery module is not limited and can be set according to requirements.
  • a battery may include a plurality of battery modules, which may be connected in series, in parallel or in parallel.
  • the battery cell 20 includes one or more electrode assemblies 22 , a casing 211 and a cover plate 212 .
  • the housing 211 and the cover plate 212 form the housing or battery compartment 21 .
  • the walls of the casing 211 and the cover plate 212 are both called the walls of the battery cell 20 , wherein for the rectangular parallelepiped battery cell 20 , the walls of the casing 211 include a bottom wall and four side walls.
  • the housing 211 depends on the combined shape of one or more electrode assemblies 22.
  • the housing 211 can be a hollow cuboid or cube or cylinder, and one of the surfaces of the housing 211 has an opening so that one or more electrodes Assembly 22 may be placed within housing 211 .
  • one of the planes of the housing 211 is an open surface, that is, the plane does not have a wall so that the inside and outside of the housing 211 communicate.
  • the casing 211 can be a hollow cylinder, the end surface of the casing 211 is an open surface, that is, the end surface does not have a wall so that the inside and outside of the casing 211 communicate.
  • the cover plate 212 covers the opening and is connected with the casing 211 to form a closed cavity for placing the electrode assembly 22 .
  • the casing 211 is filled with electrolyte, such as electrolytic solution.
  • the battery cell 20 may also include two electrode terminals 214 , and the two electrode terminals 214 may be disposed on the cover plate 212 .
  • the cover plate 212 is usually in the shape of a flat plate, and two electrode terminals 214 are fixed on the flat plate surface of the cover plate 212, and the two electrode terminals 214 are positive electrode terminals 214a and negative electrode terminals 214b respectively.
  • Each electrode terminal 214 is respectively provided with a connecting member 23 , or also referred to as a current collecting member 23 , which is located between the cover plate 212 and the electrode assembly 22 for electrically connecting the electrode assembly 22 and the electrode terminal 214 .
  • each electrode assembly 22 has a first tab 221a and a second tab 222a.
  • the polarities of the first tab 221a and the second tab 222a are opposite.
  • the first tab 221a is a positive tab
  • the second tab 222a is a negative tab.
  • the first tabs 221a of one or more electrode assemblies 22 are connected to one electrode terminal through one connection member 23
  • the second tabs 222a of one or more electrode assemblies 22 are connected to another electrode terminal through another connection member 23 .
  • the positive electrode terminal 214 a is connected to the positive electrode tab through one connection member 23
  • the negative electrode terminal 214 b is connected to the negative electrode tab through the other connection member 23 .
  • the electrode assembly 22 can be arranged as a single one or in multiples. As shown in FIG. 3 , four independent electrode assemblies 22 are arranged in the battery cell 20 .
  • a pressure relief mechanism 213 may also be provided on the battery cell 20 .
  • the pressure relief mechanism 213 is activated to release the internal pressure or temperature when the internal pressure or temperature of the battery cell 20 reaches a threshold.
  • the pressure relief mechanism 213 may be various possible pressure relief structures, which are not limited in this embodiment of the present application.
  • the pressure relief mechanism 213 may be a temperature-sensitive pressure relief mechanism configured to melt when the internal temperature of the battery cell 20 provided with the pressure relief mechanism 213 reaches a threshold; and/or, the pressure relief mechanism 213 may be a pressure-sensitive pressure relief mechanism configured to rupture when the internal air pressure of the battery cell 20 provided with the pressure relief mechanism 213 reaches a threshold value.
  • FIG. 4 shows a schematic structural diagram of a battery 10 according to an embodiment of the present application.
  • the battery 10 includes a battery module 100 and a case 11 .
  • the battery module 100 is accommodated in the case 11 .
  • FIG. 5 shows a schematic structural diagram of a battery module 100 according to an embodiment of the present application.
  • the battery module 100 may include N columns of battery cells 20 and N ⁇ 1 separators 101 .
  • N is an integer greater than 1.
  • N is 2 as an example, that is, the battery module 100 includes two rows of battery cells 20 and one separator 101 , but this embodiment of the present application is not limited thereto.
  • the battery module 100 may also include more rows of battery cells 20 .
  • Each row of battery cells 20 in the N rows of battery cells 20 is arranged along a first direction, for example, the x direction in FIG. 5 .
  • N columns of battery cells 20 are arranged along a second direction, for example, the y direction in FIG. 5 , and the first direction is perpendicular to the second direction.
  • the first direction is the direction in which the battery cells 20 are arranged in each row of battery cells 20
  • the second direction is the direction in which the battery cells 20 in N rows are arranged.
  • the separator 101 extends along the first direction and is disposed between two adjacent rows of battery cells 20 , and the separator 101 is fixedly connected to each battery cell 20 in the two rows of battery cells 20 .
  • two adjacent rows of battery cells 20 can be respectively fixed on both sides of the separator 101 , that is to say, each battery in two adjacent rows of battery cells 20 can be connected through one separator 101 .
  • the monomers 20 are fixedly connected.
  • the separator 101 is arranged vertically, that is, the separator 101 is arranged perpendicular to the second direction, and is arranged between two rows of battery cells 20 .
  • the battery module 100 includes N rows of battery cells 20 and N ⁇ 1 separators 101 , and the N ⁇ 1 separators 101 are arranged between the N rows of battery cells 20 . That is to say, the separator 101 is disposed inside the battery module 100 , and the separator 101 is not provided outside the battery module 100 . For example, one separator 101 is arranged between two rows of battery cells 20 , two separators 101 are arranged between three rows of battery cells 20 , and so on. Through such an arrangement, fewer separators 101 can be utilized so that each battery cell 20 in the battery module 100 can be fixedly connected by the separators 101 .
  • a fixing structure 102 is provided at the end of the partition 101 in the first direction, and the partition 101 is fixed to the box body 11 through the fixing structure 102 .
  • the fixing structures 102 are disposed at both ends of the partition 101 in the x direction.
  • the separator 101 is fixed to the box body 11 through the fixing structure 102 , thereby realizing fixing the battery module 100 to the box body 11 .
  • each battery cell 20 in the battery module 100 is fixedly connected by the separator 101
  • each battery cell 20 is fixedly connected to the box body 11 through the fixing structure 102 .
  • a separator 101 is provided between two adjacent rows of battery cells 20 of the battery module 100, and the separator 101 is fixedly connected to each battery cell 20 in the two rows of battery cells 20
  • a fixing structure 102 is provided at an end of the partition 101 , and the partition 101 is fixed to the box body 11 through the fixing structure 102 .
  • each battery cell 20 in the battery 10 is fixed to the box body 11 by the separator 101 and the fixing structure 102, so each battery cell 20 can transfer its load to the box body 11, ensuring the structure of the battery 10 Strength; in this case, there is no need to set side plates on the outside of the battery module 100, and there is no need to set beams and other structures in the middle of the box body 11, which can maximize the space utilization rate inside the battery 10, thereby improving the battery 10. energy density. Therefore, the technical solutions of the embodiments of the present application can increase the energy density of the battery 10 while ensuring the structural strength of the battery 10 , thereby improving the performance of the battery 10 .
  • the separator 101 may be fixedly connected to each battery cell 20 in two adjacent rows of battery cells 20 by means of adhesion.
  • the separator 101 and each battery cell 20 in two adjacent columns of battery cells 20 can be bonded by structural adhesive 110 , but the embodiment of the present application This is not limited.
  • adjacent battery cells 20 in each row of battery cells 20 in N rows of battery cells 20 may also be bonded, for example, as shown in FIG. The embodiment does not limit this.
  • the fixing effect of the battery cells 20 can be further enhanced by fixing between adjacent battery cells 20 in each row of battery cells 20 .
  • the separator 101 can be a metal plate, such as a steel plate or an aluminum plate, or a plastic plate, and the material of the separator 101 can also be a composite material, for example, other materials are coated on the surface of the metal plate.
  • the embodiment does not limit this.
  • the thickness of the partition 101 may be 0.1-0.5 mm, for example, in one embodiment of the present application, the thickness of the partition 101 may be 0.2-0.4 mm.
  • the separator 101 with this thickness can reduce the space occupied by the separator 101 while ensuring the strength.
  • the battery 10 includes a plurality of battery modules 100 , the plurality of battery modules 100 are arranged along the second direction, and there are gaps between adjacent battery modules 100 . That is, a plurality of battery modules 100 are arranged along the y direction, and there is no separator 101 between adjacent battery modules 100 , and there is a certain gap. That is to say, in one battery module 100 , a separator 101 is provided between two rows of battery cells 20 , but no separator 101 is provided between adjacent battery modules 100 . In this way, on the one hand, the separators 101 inside the battery 10 can be reduced as much as possible; on the other hand, a certain gap can be formed between adjacent battery modules 100 to provide expansion space for the battery cells 20 .
  • the battery module 100 includes two rows of battery cells 20 , that is, N is two.
  • one separator 101 is provided in two rows of battery cells 20 .
  • this embodiment can set fewer spacers 101 in the battery 10, but at the same time it can ensure that each battery cell 20 can be fixed to
  • the bulkhead 101 is connected to the box body 11 through the bulkhead 101 and the fixing structure 102 .
  • N/2 separators 101 may be provided, wherein each separator 101 is arranged on two adjacent rows of batteries. Between the cells 20 , and each row of battery cells 20 is fixedly connected to a separator 101 .
  • two separators 101 may be provided, wherein one separator 101 is disposed between the first row and the second row of battery cells 20, and the other separator 101 It is arranged between the battery cells 20 in the third row and the fourth row; for a battery module 100 including six rows of battery cells 20, three separators 101 can be arranged, wherein the first separator 101 is arranged in the first row and the second row of battery cells 20, the second separator 101 is arranged between the third row and the fourth row of battery cells 20, and the third separator 101 is arranged between the fifth row and the sixth row of battery cells between body 20; and so on.
  • Such an arrangement can ensure that each battery cell 20 can be fixed on the separator 101 and connected to the box body 11 through the separator 101 and the fixing structure 102 .
  • the fixing structure 102 may include a fixing plate 104 .
  • the fixing plate 104 is fixedly connected to the end of the separator 101 , and is fixedly connected to the battery cell 20 located at the end of the separator 101 .
  • the fixing plate 104 can be vertically connected to the separator 101, and connected with the separator 101 respectively to two adjacent side walls of the rectangular parallelepiped battery cell 20, thereby further strengthening the stability of the battery cell. A fixed effect of 20.
  • the fixing plate 104 can be made of the same material as the partition plate 101, for example, metal, plastic or composite material.
  • the thickness of the fixing plate 104 may be the same as that of the partition plate 101 .
  • the material or thickness of the fixing plate 104 may also be different from that of the separator 101 , for example, the fixing plate 104 may be set with higher strength or thickness, but this is not limited in this embodiment of the present application.
  • connection between the separator 101 and the fixing plate 104 can be connection methods such as resistance welding, resistance riveting, SPR riveting, locking bolts or clamping; the fixing plate 104 can also be connected by resistance welding, resistance riveting, or SPR riveting. , locking bolts, snap-fit and other connection methods are fixed to the box body, but this embodiment of the present application does not limit this.
  • the fixing plate 104 and the battery cell 20 may be fixedly connected by bonding, for example, bonding by structural glue, but this is not limited in this embodiment of the present application.
  • the fixing plate 104 includes a first connecting portion 105 extending away from the battery module 100 along a first direction, and the first connecting portion 105 is used for connecting the wall of the box body 11 .
  • the first connecting portion 105 can be formed by extending outwardly away from the battery module 100 , through which the first connecting portion 105 can be connected.
  • the first connecting portion 105 of the fixing plate 104 may also be connected to the side wall of the box body 11 , which is not limited in the present application.
  • the first connecting portion 105 may be parallel to the wall of the connected box 11 , for example, the first connecting portion 105 is parallel to the bottom wall of the box 11 .
  • the area of the first connecting portion 105 can be set according to the way of fixing to the wall of the connected box 11 to meet the required fixing effect.
  • the first connecting portion 105 may be formed by bending the fixing plate 104 .
  • the first connecting portion 105 may be formed by bending the edge of the fixing plate 104 close to the wall to which it is connected in a direction away from the battery module 100 .
  • the lower edge of the fixing plate 104 can be bent outward to form the first connecting portion 105 .
  • the first connecting portion 105 is integrated with the main body of the fixing plate 104, so that the connection performance can be enhanced.
  • the fixed connection between the fixing plate 104 and the wall of the box body 11 can be realized, so that the load of the battery cell 20 can be transferred to the wall of the box body 11, thereby ensuring that the battery 10 structural strength.
  • the battery 10 may further include: a first connecting bar 13 extending along the second direction for connecting multiple battery modules 100 in the box body 11 .
  • the first connection bar 13 connects the plurality of battery modules 100 in the second direction, which can improve the overall structural strength of the plurality of battery modules 100 .
  • the fixing plate 104 further includes a second connecting portion 106 extending away from the battery module 100 along the first direction, and the second connecting portion 106 is used for connecting the first connecting bar 13 .
  • the second connecting portion 106 and the first connecting portion 105 may be respectively disposed at both ends of the fixing plate 104 .
  • the second connecting portion 106 may be disposed at a position away from the fixing plate 104 from the bottom wall. That is, at the position away from the bottom wall of the fixing plate 104 , the second connecting portion 106 can be formed by extending outwardly away from the battery module 100 , and the first connecting bar 13 is connected through the second connecting portion 106 . In this way, the structural strength of the battery 10 can be further ensured by the first connection bar 13 at a position away from the bottom wall.
  • the second connecting portion 106 may be parallel to the first connecting bar 13 .
  • the area of the second connecting portion 106 can be set according to the fixing method with the first connecting bar 13 to meet the required fixing effect.
  • the second connecting portion 106 may be formed by bending the fixing plate 104 .
  • the second connecting portion 106 may be formed by bending an edge of the fixing plate 104 close to the first connecting bar 13 in a direction away from the battery module 100 .
  • the upper edge of the fixing plate 104 can be bent outward to form the second connecting portion 106 .
  • the second connecting portion 106 is integrated with the main body of the fixing plate 104, so that the connection performance can be enhanced.
  • the fixing plate 104 further includes a third connecting portion 107 extending in a direction away from the battery module 100 along the first direction, and the third connecting portion 107 is used for connecting the fixing plate 104 and the partition. plate 101.
  • the third connecting portion 107 can be formed by extending away from the battery module 100 , that is, outward, and the fixing plate 104 is fixedly connected to the separator 101 through the third connecting portion 107 .
  • the third connecting portion 107 can also realize the connection between the fixing plates 104 at the same time.
  • each row of battery cells 20 in the battery module 100 is provided with a fixing plate 104 , and the separator 101 in the battery module 100 and the two fixing plates 104 corresponding to the two rows of battery cells 20 are fixed together through the third connecting portion 107 .
  • the third connecting portion 107 may be parallel to the partition 101 .
  • the area of the third connecting portion 107 can be set according to the fixing method to meet the required fixing effect.
  • the third connecting portion 107 may be formed by bending the fixing plate 104 .
  • the third connecting portion 107 may be formed by bending an edge of the fixing plate 104 close to the separator 101 in a direction away from the battery module 100 .
  • the third connecting portion 107 is integrated with the main body of the fixing plate 104, so that the connection performance can be enhanced.
  • the separator 101 can be integrally formed with the fixing plates 104 at both ends of one row of battery cells 20 in two adjacent rows of battery cells 20, so that only the other row of battery cells 20 is provided with a fixing plate 104; or, the separator 101 may be integrally formed with the fixing plates 104 corresponding to two adjacent rows of battery cells 20 .
  • the fixing plates 104 corresponding to the plurality of battery modules 100 may be of an integral structure. As shown in FIG. 7 , the fixing plate 104 corresponding to the plurality of battery modules 100 can be a whole board, and the plurality of battery modules 100 are fixed on the box body 11 through this whole board, thereby improving the overall structural strength of the plurality of battery modules 100 .
  • a limiting bar 108 corresponding to the battery module 100 may be provided on the fixing plate 104 , and the limiting bar 108 is used to be inserted into the gap between adjacent battery modules 100 , which facilitates the installation of the battery module 100 .
  • the ends of the separators 101 protrude from N rows of battery cells 20 in the first direction
  • the fixing structure 102 includes the ends of the separators 101 at
  • the first protruding portion 121 protrudes from the N columns of battery cells 20 in the first direction.
  • the partition 101 can be connected to the wall of the box body 11 through the first protruding portion 121 .
  • a connection portion corresponding to the first protruding portion 121 may be provided on the wall of the box body 11 to realize the connection between the two.
  • the fixing structure 102 further includes a first extension part 123, the first extension part 123 is fixedly connected with the first protruding part 121 and extends along the second direction,
  • the first extension portion 123 is used to connect to the wall of the box body 11 .
  • the first extension part 123 is fixedly connected with the first protruding part 121 and extends along the second direction to form a connection with the bottom wall. The area where the walls are connected, thereby connecting the bottom wall of the box 11.
  • the first extension portion 123 of the fixing structure 102 may also be connected to the side wall of the box body 11 , which is not limited in the present application.
  • the first extending portion 123 may be parallel to the wall of the connected box 11 , for example, the first extending portion 123 is parallel to the bottom wall of the box 11 .
  • the area of the first extension part 123 can be set according to the way of fixing to the wall of the box body 11 to meet the required fixing effect.
  • first extension part 123 and the first protruding part 121 can be integrally formed, which can enhance the connection performance.
  • the fixing structure 102 when the battery 10 is provided with the first connection bar 13, the fixing structure 102 further includes a second extension 124, and the second extension 124 is fixed to the first protruding portion 121 Connected and extended along the second direction, the second extension portion 124 is used for connecting the first connecting bar 13 .
  • the second extension portion 124 when the first extension portion 123 is connected to the bottom wall of the box body 11 , the second extension portion 124 may be disposed at a position where the first protruding portion 121 is away from the bottom wall.
  • the second extension portion 124 is fixedly connected to the first protruding portion 121 and extends along the second direction to form a region connected to the first connecting bar 13, thereby connecting the first protruding portion 121.
  • a connection bar 13 . In this way, the structural strength of the battery 10 can be further ensured by the first connection bar 13 at a position away from the bottom wall.
  • the second extending portion 124 may be parallel to the first connecting bar 13 .
  • the area of the second extension portion 124 can be set according to the fixing method with the first connecting bar 13 to meet the required fixing effect.
  • the second extension part 124 and the first protruding part 121 can be integrally formed, which can enhance the connection performance.
  • the battery module 100 may further include: an attachment plate 109 .
  • the attachment plate 109 extends along the first direction and is fixedly connected to the separator 101 , and the attachment plate 109 protrudes from the separator 101 along the second direction and is attached to each battery cell in two adjacent rows of battery cells 20 Body 20.
  • the attachment plate 109 can be connected vertically to the separator 101 such that the separator 101 is attached to the side walls of the battery cells 20 and the attachment plate 109 is attached to the bottom and/or top walls of the battery cells 20, thereby further strengthening the stability of the battery. Fixed effect of monomer 20.
  • the attachment plate 109 can be made of the same material as the partition 101, for example, metal, plastic or composite material.
  • the thickness of the attachment plate 109 may also be the same as that of the partition plate 101 .
  • the material or thickness of the attachment plate 109 may also be different from that of the separator 101 , which is not limited in this embodiment of the present application.
  • the attachment plate 109 may be fixedly connected to each battery cell 20 in two adjacent rows of battery cells 20 .
  • each battery cell 20 is fixed by the attachment plate 109 and the separator 101 , so that the fixing effect can be further improved.
  • attachment plate 109 and the battery cell 20 may be fixedly connected by bonding, for example, bonding by structural glue, but this embodiment of the present application is not limited thereto.
  • the attachment plate 109 protrudes from the N rows of battery cells 20 in the first direction
  • the fixing structure 102 includes the attachment plate 109 protruding from the N rows of batteries in the first direction.
  • the second protruding portion 122 of the monomer 20 can be used to connect the wall of the box body 11, for example, can connect the bottom wall of the box body 11, so that the load of the battery cell 20 can be transferred to the wall of the box body 11, thereby ensuring the structure of the battery 10. strength.
  • the second protruding portion 122 of the attachment plate 109 may also be connected to the side wall of the box body 11 , which is not limited in the present application.
  • the area of the second protruding portion 122 can be set according to the fixing method with the wall of the box body 11 to be connected, so as to meet the required fixing effect.
  • the cross-sectional shapes of the partition plate 101 and the attachment plate 109 perpendicular to the first direction may be inverted T-shaped, I-shaped, Z-shaped, S-shaped, T-shaped, or C-shaped. type or L type etc.
  • the second protruding portion 122 can be used to connect the bottom wall of the box body 11;
  • the second protruding part 122 can be used to connect the bottom wall of the box body 11 and the first connecting bar 13; when it is T-shaped, the second protruding part 122 can be used to connect the box The top wall of the body 11 and/or the first connecting bar 13.
  • the partition plate 101 and the attachment plate 109 may be integrally formed, which can improve the connection performance of the partition plate 101 and the attachment plate 109 .
  • the separator 101 and the attachment plate 109 may also be connected in various fixing ways, which is not limited in this embodiment of the present application.
  • the battery cell 20 is a rectangular parallelepiped battery cell 20 .
  • the rectangular parallelepiped battery cell 20 includes two opposite first side walls and two opposite second side walls, the area of the first side wall is larger than the area of the second side wall, that is, the first side wall is a wide side wall , the second side wall is a narrow side wall.
  • the partition 101 is fixedly connected to the first side wall, ie the wide side wall. That is to say, in this embodiment, the narrow side walls of each battery cell 20 are connected to form a row along the first direction; the separator 101 is fixedly connected to the wide side wall of each battery cell 20 . In this way, the separator 101 can more easily receive the load of the battery cell 20 , so as to facilitate the transfer of the load of the battery cell 20 to the case.
  • the separator 101 may have an opening 125 corresponding to the first side wall, and the area of the opening 125 is smaller than the area of the first side wall, so that each The frame of each opening 125 can be fixedly connected to the first side wall of the battery cell 20 .
  • the opening 125 may be square or circular, which is not limited in this embodiment of the present application. Setting the opening 125 on the partition 101 can reduce the material used for the partition 101 , thereby reducing the weight of the partition 101 .
  • the S-shaped separator 101 adapted to the side of each battery cell 20 can be better connected.
  • the corresponding fixing structure 102 may adopt the configurations in the foregoing embodiments, and for the sake of brevity, details are not repeated here.
  • the partition board 101 or the attachment board 109 may be a heat insulation board.
  • the material of the separator 101 or the attachment plate 109 can be a heat insulating material, or the surface of the separator 101 or the attachment plate 109 can be sprayed with a heat insulating material, so that the battery cell 20 can also be fixed while the battery cell 20 is fixed. Insulation between.
  • the partition plate 101 or the attachment plate 109 may be a cooling plate or a heating plate.
  • cooling channels or heating resistance wires may be provided in the separator 101 or the attachment plate 109 , so as to cool or heat the battery cells 20 while fixing the battery cells 20 .
  • the partition 101 may be integrally formed with the box body 11 .
  • the partition 101 can be extruded from the profile of the box 11 . In this way, the connection performance between the partition plate 101 and the box body 11 can be improved.
  • the battery 10 further includes: a current flow component 12 .
  • the bus member 12 is used for electrical connection with the battery cells 20 .
  • at least three battery cells 20 in the battery module 100 are connected to the battery cells 20 in other battery modules 100 through the bus component 12 .
  • More battery cells 20 are connected to battery cells 20 in other battery modules 100 through the busbar 12 , and the connection performance between the battery modules 100 can be enhanced through the busbar 12 .
  • the flow-combining component 12 can connect the battery cells 20 in series along the second direction.
  • the flow-combining member 12 connects the battery cells 20 in series along the second direction, so that each pair of adjacent battery cells between adjacent battery modules 100 20 are all connected through the bus component 12, so that the connection performance between the battery modules 100 can be enhanced.
  • the battery 10 may further include: a second connecting bar 14 .
  • the second connection bar 14 When the battery module 100 is arranged on the bottom wall of the box body 11, the second connection bar 14 is arranged on the surface of the battery module 100 away from the bottom wall of the box body 11, the second connection bar 14 extends along the second direction, and is connected to the box body.
  • a plurality of battery modules 100 inside the body 11 are fixedly connected. That is to say, the second connecting bar 14 is disposed on the upper surface of the battery module 100 , so that the battery cells 20 can be constrained in the second direction to increase the structural strength of the battery 10 while resisting the expansion force of the battery cells 20 .
  • An embodiment of the present application also provides an electric device, which may include the battery 10 in the foregoing embodiments.
  • the electrical device may be a vehicle 1, a ship, or a spacecraft, etc., but this is not limited in this embodiment of the present application.
  • the battery 10 and the electrical device of the embodiment of the present application are described above, and the method and device for preparing the battery of the embodiment of the present application will be described below, and the parts that are not described in detail can be referred to the foregoing embodiments.
  • FIG. 13 shows a schematic flowchart of a method 300 for preparing a battery according to an embodiment of the present application. As shown in Figure 13, the method 300 may include:
  • the battery module 100 includes: N rows of battery cells 20, each row of battery cells 20 in the N rows of battery cells 20 is arranged along a first direction, and N rows of battery cells 20 are arranged along a second direction , N is an integer greater than 1, the first direction is perpendicular to the second direction; N-1 separators 101, the separators 101 extend along the first direction and are arranged between two adjacent rows of battery cells 20, the separators 101 is fixedly connected to each battery cell 20 in the two rows of battery cells 20; wherein, the end of the separator 101 in the first direction is provided with a fixing structure 102;
  • FIG. 14 shows a schematic block diagram of a device 400 for preparing a battery according to an embodiment of the present application.
  • the device 400 for preparing a battery may include: a supply module 410 and an installation module 420 .
  • a module 410 is provided for providing the battery module 100 and the box body 11.
  • the battery module 100 includes: N rows of battery cells 20, each row of battery cells 20 in the N rows of battery cells 20 is arranged along a first direction, and the N rows of battery cells 20 are arranged in a first direction.
  • the cells 20 are arranged along the second direction, N is an integer greater than 1, the first direction is perpendicular to the second direction; N-1 separators 101, the separators 101 extend along the first direction and are arranged in two adjacent rows of batteries Between the cells 20, the separator 101 is fixedly connected to each battery cell 20 in the two rows of battery cells 20; wherein, the end of the separator 101 in the first direction is provided with a fixing structure 102;
  • the installation module 420 is used for accommodating the battery module 100 in the box body 11, wherein the separator 101 is fixed to the box body 11 through the fixing structure 102.

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Abstract

提供了一种电池(10)、用电设备、制备电池的方法(300)和设备(400)。该电池(10)包括：电池模块(100)和箱体(11)，电池模块(100)容纳于箱体(11)内；电池模块(100)包括：N列电池单体(20)，N列电池单体(20)中的每列电池单体(20)沿第一方向排列，N列电池单体(20)沿第二方向排列，N为大于1的整数；N-1个隔板(101)，隔板(101)沿第一方向延伸且设置于相邻的两列电池单体(20)之间，隔板(101)与该两列电池单体(20)中的每个电池单体(20)固定连接；其中，隔板(101)在第一方向上的端部设置有固定结构(102)，隔板(101)通过固定结构(102)固定于箱体(11)。本申请实施例的技术方案，能够提升电池的性能。

Description

电池、用电设备、制备电池的方法和设备 技术领域
本申请涉及电池技术领域，特别是涉及一种电池、用电设备、制备电池的方法和设备。
背景技术
随着环境污染的日益加剧，新能源产业越来越受到人们的关注。在新能源产业中，电池技术是关乎其发展的一项重要因素。
电池内部的空间利用率，影响电池的电量和能量密度，进而影响电池的性能。如何提升电池的性能，是电池技术中一个亟待解决的技术问题。
发明内容
本申请提供了一种电池、用电设备、制备电池的方法和设备，能够在提升电池的能量密度的同时保障电池的结构强度，从而能够提升电池的性能。
第一方面，提供了一种电池，包括：电池模块和箱体，所述电池模块容纳于所述箱体内；所述电池模块包括：N列电池单体，所述N列电池单体中的每列电池单体沿第一方向排列，所述N列电池单体沿第二方向排列，N为大于1的整数，所述第一方向垂直于所述第二方向；N-1个隔板，所述隔板沿所述第一方向延伸且设置于相邻的两列电池单体之间，所述隔板与所述两列电池单体中的每个电池单体固定连接；其中，所述隔板在所述第一方向上的端部设置有固定结构，所述隔板通过所述固定结构固定于所述箱体。
在本申请实施例中，在电池模块的相邻的两列电池单体之间设置隔板，该隔板与该两列电池单体中的每个电池单体固定连接，在隔板的端部设置固定结构，隔板通过固定结构固定于箱体。这样，电池中的每个电池单体都被隔板和固定结构固定于箱体，因而每个电池单体能够将其载荷传递到箱体，保障了电池的结构强度；在这种情况下，电池模块外侧可以不再设置侧板，箱体中部也不需要再设置梁等结构，可 以较大限度地提升电池内部的空间利用率，从而提升电池的能量密度。因此，本申请实施例的技术方案能够在提升电池的能量密度的同时保障电池的结构强度，从而能够提升电池的性能。
在一种可能的实现方式中，隔板的厚度可以为0.1-5mm，0.2-2mm，0.3-1mm，0.1-0.5mm，或者0.2-0.4mm。采用该厚度的隔板可以在保证强度的情况下减小隔板占用的空间。
在一种可能的实现方式中，每列电池单体中相邻的电池单体间也可以粘接，例如，通过结构胶粘接。通过每列电池单体中相邻的电池单体间的固定可以进一步增强电池单体的固定效果。
在一种可能的实现方式中，所述电池包括多个所述电池模块，多个所述电池模块沿所述第二方向排列，相邻的所述电池模块间具有间隙。
在一个电池模块内，在两列电池单体间设置隔板，在相邻的电池模块之间不设置隔板。这样，一方面可以使得电池内部的隔板尽可能地减少，另一方面可以在相邻的电池模块之间形成一定的间隙，给电池单体提供膨胀空间。
在一种可能的实现方式中，所述固定结构包括固定板，所述固定板与所述隔板的所述端部固定连接，且与位于所述隔板的所述端部的电池单体固定连接。这样，可以进一步加强对电池单体的固定效果。
在一种可能的实现方式中，所述固定板包括沿所述第一方向向远离所述电池模块的方向延伸形成的第一连接部，所述第一连接部用于连接所述箱体的壁。
通过第一连接部连接箱体的壁，可以实现固定板与箱体的壁的固定连接，从而可以将电池单体的载荷传递到该箱体的壁，从而保证电池的结构强度。
在一种可能的实现方式中，第一连接部可以由固定板弯折而形成。例如，第一连接部可以由固定板的靠近所连接的壁的边缘向远离电池模块的方向弯折而形成。这样，第一连接部与固定板的主体为一体结构，从而可以增强连接性能。
在一种可能的实现方式中，所述电池还包括：第一连接条，所述第一连接条沿所述第二方向延伸，用于连接所述箱体内的多个所述电池模块；其中，所述固定板还包括沿所述第一方向向远离所述电池模块的方向延伸形成的第二连接部，所述第二连接部用于连接所述第一连接条。
通过第二连接部连接第一连接条，这样可以在远离箱体的底壁的位置通过 第一连接条进一步保证电池的结构强度。
在一种可能的实现方式中，第二连接部可以由固定板弯折而形成。例如，第二连接部可以由固定板的靠近第一连接条的边缘向远离电池模块的方向弯折而形成。这样，第二连接部与固定板的主体为一体结构，从而可以增强连接性能。
在一种可能的实现方式中，所述固定板还包括沿所述第一方向向远离所述电池模块的方向延伸形成的第三连接部，所述第三连接部用于连接所述固定板与所述隔板。通过第三连接部连接隔板，可以实现固定板与隔板的固定连接，保证二者之间的连接性能。
在一种可能的实现方式中，第三连接部可以由固定板弯折而形成。例如，第三连接部可以由固定板的靠近隔板的边缘向远离电池模块的方向弯折而形成。这样，第三连接部与固定板的主体为一体结构，从而可以增强连接性能。
在一种可能的实现方式中，多个所述电池模块对应的所述固定板为一体结构。多个电池模块对应的固定板为一块整板，多个电池模块通过这一块整板固定于箱体上，从而提高多个电池模块的整体结构强度。
在一种可能的实现方式中，所述固定板上设置有与所述电池模块对应的限位条，所述限位条用于插入相邻的所述电池模块间的间隙内。这样可以便于电池模块的安装。
在一种可能的实现方式中，所述隔板的所述端部在所述第一方向上凸出于所述N列电池单体，所述固定结构包括所述隔板的所述端部在所述第一方向上凸出于所述N列电池单体的第一凸出部分。通过第一凸出部分连接箱体的壁，可以将电池单体的载荷传递到该箱体的壁，从而保证电池的结构强度。
在一种可能的实现方式中，所述固定结构还包括第一延伸部，所述第一延伸部与所述第一凸出部分固定连接且沿所述第二方向延伸，所述第一延伸部用于连接所述箱体的壁。
通过第一延伸部连接箱体的壁，可以实现隔板与箱体的壁的固定连接，从而可以将电池单体的载荷传递到该箱体的壁，从而保证电池的结构强度。
在一种可能的实现方式中，第一延伸部与第一凸出部分可以一体成型，这样可以增强连接性能。
在一种可能的实现方式中，所述电池还包括：第一连接条，所述第一连接 条沿所述第二方向延伸，用于连接所述箱体内的多个所述电池模块；其中，所述固定结构还包括第二延伸部，所述第二延伸部与所述第一凸出部分固定连接且沿所述第二方向延伸，所述第二延伸部用于连接所述第一连接条。
通过第二延伸部连接第一连接条，这样可以在远离箱体的底壁的位置通过第一连接条进一步保证电池的结构强度。
在一种可能的实现方式中，第二延伸部与第一凸出部分可以一体成型，这样可以增强连接性能。
在一种可能的实现方式中，所述电池模块还包括：附接板，所述附接板沿所述第一方向延伸且固定连接于所述隔板，所述附接板沿所述第二方向凸出于所述隔板并附接于所述相邻的两列电池单体中的每个电池单体。通过附接板可以进一步加强对电池单体的固定效果。
在一种可能的实现方式中，所述附接板与所述相邻的两列电池单体中的每个电池单体固定连接。这样，每个电池单体均被附接板和隔板固定，从而能够进一步提升固定效果。
在一种可能的实现方式中，所述附接板在所述第一方向上凸出于所述N列电池单体，所述固定结构包括所述附接板在所述第一方向上凸出于所述N列电池单体的第二凸出部分。
通过第二凸出部分连接箱体的壁，可以将电池单体的载荷传递到该箱体的壁，从而保证电池的结构强度。
在一种可能的实现方式中，所述隔板与所述附接板一体成型。这样可以提升隔板与附接板的连接性能。
在一种可能的实现方式中，N为2。这样，在电池内可以设置较少的隔板，但同时能够保证每个电池单体均能够固定到隔板上，并通过隔板和固定结构连接到箱体。
在一种可能的实现方式中，所述电池单体为长方体型电池单体，所述长方体型电池单体包括两个相对的第一侧壁和两个相对的第二侧壁，所述第一侧壁的面积大于所述第二侧壁的面积，所述隔板与所述第一侧壁固定连接。
每列电池单体的窄面侧壁相连，从而沿第一方向排列成一列；隔板与每个电池单体的宽面侧壁固定连接，这样隔板可以更容易接受到电池单体的载荷，从而便 于将电池单体的载荷传递到箱体。
在一种可能的实现方式中，所述隔板具有与所述第一侧壁对应设置的开孔，所述开孔的面积小于所述第一侧壁的面积。在隔板上设置开孔，可以减少隔板的型材，从而降低隔板的重量。
在一种可能的实现方式中，所述电池单体为圆柱型电池单体，所述隔板为与所述圆柱型电池单体的侧面适配的S型隔板，这样可以更好地连接每个电池单体。
在一种可能的实现方式中，所述隔板为隔热板、冷却板或加热板。这样可以在固定电池单体的同时还能够实现电池单体间的隔热或对电池单体的冷却或加热。
在一种可能的实现方式中，所述隔板与所述箱体一体成型，这样可以提高隔板与箱体的连接性能。
在一种可能的实现方式中，所述电池还包括：汇流部件，用于与所述电池单体电连接；其中，所述电池模块中至少三个电池单体通过所述汇流部件连接其他电池模块中的电池单体。
较多的电池单体通过汇流部件与其他电池模块中的电池单体连接，可以通过汇流部件增强电池模块间的连接性能。
在一种可能的实现方式中，所述汇流部件沿所述第二方向串联所述电池单体。这样可以使得相邻电池模块间每对相邻的电池单体均通过汇流部件连接，从而可以增强电池模块间的连接性能。
在一种可能的实现方式中，所述电池模块设置于所述箱体的底壁上；所述电池还包括：第二连接条，设置于所述电池模块的远离所述箱体的底壁的表面，所述第二连接条沿所述第二方向延伸，且与所述箱体内的多个所述电池模块固定连接。
通过第二连接条可以在第二方向上约束电池单体增加电池的结构强度，同时抵抗电池单体的膨胀力。
第二方面，提供了一种用电设备，包括：上述第一方面或第一方面的任意可能的实现方式中的电池，所述电池用于提供电能。
第三方面，提供了一种制备电池的方法，包括：提供电池模块，所述电池模块包括：N列电池单体，所述N列电池单体中的每列电池单体沿第一方向排列，所述N列电池单体沿第二方向排列，N为大于1的整数，所述第一方向垂直于所述第二方向；N-1个隔板，所述隔板沿所述第一方向延伸且设置于相邻的两列电池单体之间， 所述隔板与所述两列电池单体中的每个电池单体固定连接；其中，所述隔板在所述第一方向上的端部设置有固定结构；提供箱体；将所述电池模块容纳于所述箱体内，其中，所述隔板通过所述固定结构固定于所述箱体。
第四方面，提供了一种制备电池的设备，包括执行上述第三方面的方法的模块。
本申请实施例的技术方案，在电池模块的相邻的两列电池单体之间设置隔板，该隔板与该两列电池单体中的每个电池单体固定连接，在隔板的端部设置固定结构，隔板通过固定结构固定于箱体。这样，电池中的每个电池单体都被隔板和固定结构固定于箱体，因而每个电池单体能够将其载荷传递到箱体。因此，本申请实施例的技术方案能够在提升电池的能量密度的同时保障电池的结构强度，从而能够提升电池的性能。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所描述的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据附图获得其他的附图。
图1是本申请一实施例的车辆的示意图；
图2是本申请一实施例的电池的示意图；
图3是本申请一实施例的电池单体的示意图；
图4是本申请一实施例的电池的示意图；
图5是本申请一实施例的电池模块的示意图；
图6是本申请一实施例的电池模块的示意图；
图7是本申请一实施例的电池的示意图；
图8是本申请一实施例的电池模块的示意图；
图9是本申请一实施例的电池模块的示意图；
图10是本申请一实施例的电池模块的示意图；
图11是本申请一实施例的隔板的示意图；
图12是本申请一实施例的S型隔板的示意图；
图13是本申请一实施例的制备电池的方法的示意性流程图；
图14是本申请一实施例的制备电池的设备的示意性框图。
在附图中，附图并未按照实际的比例绘制。
具体实施方式
下面结合附图和实施例对本申请的实施方式作进一步详细描述。以下实施例的详细描述和附图用于示例性地说明本申请的原理，但不能用来限制本申请的范围，即本申请不限于所描述的实施例。
在本申请的描述中，需要说明的是，除非另有说明，所使用的所有的技术和科学术语与属于本申请的技术领域的技术人员通常理解的含义相同；所使用的术语只是为了描述具体的实施例的目的，不是旨在于限制本申请；本申请的说明书和权利要求书及上述附图说明中的术语“包括”和“具有”以及它们的任何变形，意图在于覆盖不排他的包含；“多个”的含义是两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”等指示的方位或位置关系仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”、“第三”等仅用于描述目的，而不能理解为指示或暗示相对重要性。“垂直”并不是严格意义上的垂直，而是在误差允许范围之内。“平行”并不是严格意义上的平行，而是在误差允许范围之内。
在本申请中提及“实施例”意味着，结合实施例描述的特定特征、结构或特性可以包含在本申请的至少一个实施例中。在说明书中的各个位置出现该短语并不一定均是指相同的实施例，也不是与其它实施例互斥的独立的或备选的实施例。本领域技术人员显式地和隐式地理解的是，本申请所描述的实施例可以与其它实施例相结合。
下述描述中出现的方位词均为图中示出的方向，并不是对本申请的具体结构进行限定。在本申请的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
本申请中术语“和/或”，仅仅是一种描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情况。另外，本申请中字符“/”，一般表示前后关联对象是一种“或”的关系。
本申请中，电池单体可以包括锂离子二次电池、锂离子一次电池、锂硫电池、钠锂离子电池、钠离子电池或镁离子电池等，本申请实施例对此并不限定。电池单体可呈圆柱体、扁平体、长方体或其它形状等，本申请实施例对此也不限定。电池单体一般按封装的方式分成三种：柱形电池单体、方体方形电池单体和软包电池单体，本申请实施例对此也不限定。
本申请的实施例所提到的电池是指包括一个或多个电池单体以提供更高的电压和容量的单一的物理模块。例如，本申请中所提到的电池可以包括电池包等。电池一般包括用于封装一个或多个电池单体的箱体。箱体可以避免液体或其他异物影响电池单体的充电或放电。
电池单体包括电极组件和电解液，电极组件由正极片、负极片和隔离膜组成。电池单体主要依靠金属离子在正极片和负极片之间移动来工作。正极片包括正极集流体和正极活性物质层，正极活性物质层涂覆于正极集流体的表面，未涂敷正极活性物质层的集流体凸出于已涂覆正极活性物质层的集流体，未涂敷正极活性物质层的集流体作为正极极耳。以锂离子电池为例，正极集流体的材料可以为铝，正极活性物质可以为钴酸锂、磷酸铁锂、三元锂或锰酸锂等。负极片包括负极集流体和负极活性物质层，负极活性物质层涂覆于负极集流体的表面，未涂敷负极活性物质层的集流体凸出于已涂覆负极活性物质层的集流体，未涂敷负极活性物质层的集流体作为负极极耳。负极集流体的材料可以为铜，负极活性物质可以为碳或硅等。为了保证通过大电流而不发生熔断，正极极耳的数量为多个且层叠在一起，负极极耳的数量为多个且层叠在一起。隔离膜的材质可以为聚丙烯(PP)或聚乙烯(PE)等。此外，电极组件可以是卷绕式结构，也可以是叠片式结构，本申请实施例并不限于此。
为了满足不同的电力需求，电池可以包括多个电池单体，其中，多个电池单体之间可以串联或并联或混联，混联是指串联和并联的混合。可选地，多个电池单体可以先串联或并联或混联组成电池模块，多个电池模块再串联或并联或混联组成电池。也就是说，多个电池单体可以直接组成电池，也可以先组成电池模块，电池模块 再组成电池。电池再进一步设置于用电设备中，为用电设备提供电能。
电池技术的发展要同时考虑多方面的设计因素，例如，能量密度、循环寿命、放电容量、充放电倍率、安全性等。其中，在电池内部空间一定的情况下，提升电池内部空间的利用率，是提升电池能量密度的有效手段。然而，在提升电池内部空间的利用率的同时，有可能会降低电池的结构强度。例如，在电池的箱体内部通常会设置用于挂载电池模块的梁，另外，电池中的电池模块也会设置侧板和端板。上述梁、侧板和端板在实现电池的固定的同时，也占用了电池的内部空间。但是，若不设置梁、侧板和端板，则会导致电池的结构强度不足，影响电池的性能。
鉴于此，本申请实施例提供了一种技术方案，在电池模块的相邻的两列电池单体之间设置隔板，该隔板与该两列电池单体中的每个电池单体固定连接，再通过固定结构固定于箱体。这样，电池中的每个电池单体都被隔板和固定结构固定于箱体，能够将其载荷传递到箱体，保障了电池的结构强度；在这种情况下，电池模块外侧可以不再设置侧板，箱体中部也不需要再设置梁等结构，可以较大限度地提升电池内部的空间利用率，从而提升电池的能量密度。因此，本申请实施例的技术方案能够在提升电池的能量密度的同时保障电池的结构强度，从而能够提升电池的性能。
本申请实施例描述的技术方案均适用于各种使用电池的装置，例如，手机、便携式设备、笔记本电脑、电瓶车、电动玩具、电动工具、电动车辆、船舶和航天器等，例如，航天器包括飞机、火箭、航天飞机和宇宙飞船等。
应理解，本申请实施例描述的技术方案不仅仅局限适用于上述所描述的设备，还可以适用于所有使用电池的设备，但为描述简洁，下述实施例均以电动车辆为例进行说明。
例如，如图1所示，为本申请一个实施例的一种车辆1的结构示意图，车辆1可以为燃油汽车、燃气汽车或新能源汽车，新能源汽车可以是纯电动汽车、混合动力汽车或增程式汽车等。车辆1的内部可以设置马达40，控制器30以及电池10，控制器30用来控制电池10为马达40的供电。例如，在车辆1的底部或车头或车尾可以设置电池10。电池10可以用于车辆1的供电，例如，电池10可以作为车辆1的操作电源，用于车辆1的电路系统，例如，用于车辆1的启动、导航和运行时的工作用电需求。在本申请的另一实施例中，电池10不仅仅可以作为车辆1的操作电源，还可以作为车辆1的驱动电源，替代或部分地替代燃油或天然气为车辆1提供驱动动力。
为了满足不同的使用电力需求，电池10可以包括多个电池单体。例如，如图2所示，为本申请一个实施例的一种电池10的结构示意图，电池10可以包括多个电池单体20。电池10还可以包括箱体11，箱体11内部为中空结构，多个电池单体20容纳于箱体11内。例如，多个电池单体20相互并联或串联或混联组合后置于箱体11内。
可选地，电池10还可以包括其他结构，在此不再一一赘述。例如，该电池10还可以包括汇流部件，汇流部件用于实现多个电池单体20之间的电连接，例如并联或串联或混联。具体地，汇流部件可通过连接电池单体20的电极端子实现电池单体20之间的电连接。进一步地，汇流部件可通过焊接固定于电池单体20的电极端子。多个电池单体20的电能可进一步通过导电机构穿过箱体而引出。可选地，导电机构也可属于汇流部件。
根据不同的电力需求，电池单体20的数量可以设置为任意数值。多个电池单体20可通过串联、并联或混联的方式连接以实现较大的容量或功率。由于每个电池10中包括的电池单体20的数量可能较多，为了便于安装，可以将电池单体20分组设置，每组电池单体20组成电池模块。电池模块中包括的电池单体20的数量不限，可以根据需求设置。电池可以包括多个电池模块，这些电池模块可通过串联、并联或混联的方式进行连接。
如图3所示，为本申请一个实施例的一种电池单体20的结构示意图，电池单体20包括一个或多个电极组件22、壳体211和盖板212。壳体211和盖板212形成外壳或电池盒21。壳体211的壁以及盖板212均称为电池单体20的壁，其中对于长方体型电池单体20，壳体211的壁包括底壁和四个侧壁。壳体211根据一个或多个电极组件22组合后的形状而定，例如，壳体211可以为中空的长方体或正方体或圆柱体，且壳体211的其中一个面具有开口以便一个或多个电极组件22可以放置于壳体211内。例如，当壳体211为中空的长方体或正方体时，壳体211的其中一个平面为开口面，即该平面不具有壁体而使得壳体211内外相通。当壳体211可以为中空的圆柱体时，壳体211的端面为开口面，即该端面不具有壁体而使得壳体211内外相通。盖板212覆盖开口并且与壳体211连接，以形成放置电极组件22的封闭的腔体。壳体211内填充有电解质，例如电解液。
该电池单体20还可以包括两个电极端子214，两个电极端子214可以设置 在盖板212上。盖板212通常是平板形状，两个电极端子214固定在盖板212的平板面上，两个电极端子214分别为正电极端子214a和负电极端子214b。每个电极端子214各对应设置一个连接构件23，或者也可以称为集流构件23，其位于盖板212与电极组件22之间，用于将电极组件22和电极端子214实现电连接。
如图3所示，每个电极组件22具有第一极耳221a和第二极耳222a。第一极耳221a和第二极耳222a的极性相反。例如，当第一极耳221a为正极极耳时，第二极耳222a为负极极耳。一个或多个电极组件22的第一极耳221a通过一个连接构件23与一个电极端子连接，一个或多个电极组件22的第二极耳222a通过另一个连接构件23与另一个电极端子连接。例如，正电极端子214a通过一个连接构件23与正极极耳连接，负电极端子214b通过另一个连接构件23与负极极耳连接。
在该电池单体20中，根据实际使用需求，电极组件22可设置为单个，或多个，如图3所示，电池单体20内设置有4个独立的电极组件22。
电池单体20上还可设置泄压机构213。泄压机构213用于电池单体20的内部压力或温度达到阈值时致动以泄放内部压力或温度。
泄压机构213可以为各种可能的泄压结构，本申请实施例对此并不限定。例如，泄压机构213可以为温敏泄压机构，温敏泄压机构被配置为在设有泄压机构213的电池单体20的内部温度达到阈值时能够熔化；和/或，泄压机构213可以为压敏泄压机构，压敏泄压机构被配置为在设有泄压机构213的电池单体20的内部气压达到阈值时能够破裂。
图4示出了本申请一个实施例的电池10的结构示意图。如图4所示，电池10包括电池模块100和箱体11。电池模块100容纳于箱体11内。图5示出了本申请一个实施例的电池模块100的结构示意图。如图5所示，电池模块100可以包括N列电池单体20和N-1个隔板101。N为大于1的整数，在本申请的附图中以N为2示例，即电池模块100包括两列电池单体20和一个隔板101，但本申请实施例对此并不限定。例如，电池模块100也可以包括更多列的电池单体20。
N列电池单体20中的每列电池单体20沿第一方向排列，例如，图5中的x方向。N列电池单体20沿第二方向排列，例如，图5中的y方向，第一方向垂直于第二方向。换句话说，第一方向为每列电池单体20中电池单体20排列的方向，第二方向为N列电池单体20排列的方向。
隔板101沿第一方向延伸且设置于相邻的两列电池单体20之间，隔板101与该两列电池单体20中的每个电池单体20固定连接。如图5所示，相邻的两列电池单体20可分别固定于隔板101两侧，也就是说，通过一个隔板101可以将相邻的两列电池单体20中的每个电池单体20均固定连接。例如，如图5中所示，隔板101竖直设置，即，隔板101垂直于第二方向，设置于两列电池单体20之间。
在本申请实施例中，电池模块100包括N列电池单体20和N-1个隔板101，N-1个隔板101设置于N列电池单体20之间。也就是说，隔板101设置于电池模块100的内部，电池模块100的外侧不再设置隔板101。例如，两列电池单体20之间设置一个隔板101，三列电池单体20之间设置两个隔板101，以此类推。通过这样的设置可以利用较少的隔板101使得电池模块100中的每个电池单体20均可以被隔板101固定连接。
隔板101在第一方向上的端部设置有固定结构102，隔板101通过固定结构102固定于箱体11。如图5所示，固定结构102设置于隔板101在x方向上的两端。隔板101通过固定结构102固定于箱体11，进而实现将电池模块100固定于箱体11。如上所述，电池模块100中的每个电池单体20均被隔板101固定连接，再通过固定结构102可以实现每个电池单体20与箱体11的固定连接。
在本申请实施例中，在电池模块100的相邻的两列电池单体20之间设置隔板101，该隔板101与该两列电池单体20中的每个电池单体20固定连接，在隔板101的端部设置固定结构102，隔板101通过固定结构102固定于箱体11。这样，电池10中的每个电池单体20都被隔板101和固定结构102固定于箱体11，因而每个电池单体20能够将其载荷传递到箱体11，保障了电池10的结构强度；在这种情况下，电池模块100外侧可以不再设置侧板，箱体11中部也不需要再设置梁等结构，可以较大限度地提升电池10内部的空间利用率，从而提升电池10的能量密度。因此，本申请实施例的技术方案能够在提升电池10的能量密度的同时保障电池10的结构强度，从而能够提升电池10的性能。
可选地，隔板101与相邻的两列电池单体20中的每个电池单体20之间可以通过粘接的方式固定连接。例如，在本申请一个实施例中，如图6所示，隔板101与相邻的两列电池单体20中的每个电池单体20可以通过结构胶110粘接，但本申请实施例对此并不限定。
可选地，N列电池单体20中的每列电池单体20中相邻的电池单体20间也可以粘接，例如，如图6所示，通过结构胶110粘接，但本申请实施例对此并不限定。通过每列电池单体20中相邻的电池单体20间的固定可以进一步增强电池单体20的固定效果。
可选地，隔板101可以为金属板，例如，可以为钢板或铝板，也可以为塑料板，隔板101的材料还可以为复合材料，例如，在金属板表面涂覆其他材料，本申请实施例对此并不限定。
可选地，隔板101的厚度可以为0.1-0.5mm，例如，在本申请一个实施例中，隔板101的厚度可以为0.2-0.4mm。采用该厚度的隔板101可以在保证强度的情况下减小隔板101占用的空间。
可选地，在本申请一个实施例中，电池10包括多个电池模块100，多个电池模块100沿第二方向排列，相邻的电池模块100间具有间隙。即，多个电池模块100沿y方向排列，相邻的电池模块100间没有隔板101，具有一定的间隙。也就是说，在一个电池模块100内，在两列电池单体20间设置隔板101，但在相邻的电池模块100之间不设置隔板101。这样，一方面可以使得电池10内部的隔板101尽可能地减少，另一方面可以在相邻的电池模块100之间形成一定的间隙，给电池单体20提供膨胀空间。
可选地，在本申请一个实施例中，电池模块100包括两列电池单体20，即，N为2。相应地，两列电池单体20中设置一个隔板101。如上所述，在相邻的电池模块100间不设置隔板101，这样，该实施例在电池10内可以设置较少的隔板101，但同时能够保证每个电池单体20均能够固定到隔板101上，并通过隔板101和固定结构102连接到箱体11。
可选地，在本申请一个实施例中，对于包括N列电池单体20的电池模块100，可以设置N/2个隔板101，其中，每个隔板101设置于相邻的两列电池单体20之间，且每列电池单体20均与一个隔板101固定连接。例如，对于包括四列电池单体20的电池模块100，可以设置两个隔板101，其中，一个隔板101设置于第一列和第二列电池单体20之间，另一个隔板101设置于第三列和第四列电池单体20之间；对于包括六列电池单体20的电池模块100，可以设置三个隔板101，其中，第一个隔板101设置于第一列和第二列电池单体20之间，第二个隔板101设置于第三列和第四列电池 单体20之间，第三个隔板101设置于第五列和第六列电池单体20之间；以此类推。这样的设置能够保证每个电池单体20均能够固定到隔板101上，并通过隔板101和固定结构102连接到箱体11。
可选地，在本申请一个实施例中，固定结构102可以包括固定板104。固定板104与隔板101的端部固定连接，且与位于隔板101的端部的电池单体20固定连接。例如，对于长方体型电池单体20，固定板104可以垂直连接于隔板101，并与隔板101分别连接长方体型电池单体20的两个相邻的侧壁，从而进一步加强对电池单体20的固定效果。
可选地，固定板104可以采用与隔板101相同的材料，例如，金属、塑料或复合材料。固定板104的厚度也可以与隔板101相同。固定板104的材料或厚度也可以与隔板101不同，例如，固定板104可以采用更高强度或厚度的设置，但本申请实施例对此并不限定。
可选地，隔板101与固定板104之间的连接方式可以是电阻焊接、电阻铆接、SPR铆接、锁螺栓或卡接等连接方式；固定板104也可以通过电阻焊接、电阻铆接、SPR铆接、锁螺栓或卡接等连接方式固定到箱体上，但本申请实施例对此并不限定。
可选地，固定板104与电池单体20之间可以通过粘接的方式固定连接，例如，通过结构胶粘接，但本申请实施例对此并不限定。
可选地，在本申请一个实施例中，固定板104包括沿第一方向向远离电池模块100的方向延伸形成的第一连接部105，第一连接部105用于连接箱体11的壁。例如，以连接箱体11的底壁为例，在固定板104靠近底壁的位置，可向远离电池模块100的方向，即向外延伸形成第一连接部105，通过第一连接部105连接箱体11的底壁。当然，固定板104的第一连接部105也可以与箱体11的侧壁连接，本申请对此并不限定。
第一连接部105可以平行于所连接的箱体11的壁，例如，第一连接部105平行于箱体11的底壁。第一连接部105的面积可以根据与所连接的箱体11的壁的固定方式而设定，以满足所需的固定效果。
可选地，在本申请一个实施例中，第一连接部105可以由固定板104弯折而形成。例如，第一连接部105可以由固定板104的靠近所连接的壁的边缘向远离电 池模块100的方向弯折而形成。以连接箱体11的底壁为例，固定板104的下边缘可以向外弯折形成第一连接部105。这样，第一连接部105与固定板104的主体为一体结构，从而可以增强连接性能。
通过第一连接部105连接箱体11的壁，可以实现固定板104与箱体11的壁的固定连接，从而可以将电池单体20的载荷传递到该箱体11的壁，从而保证电池10的结构强度。
可选地，在本申请一个实施例中，电池10还可以包括：第一连接条13，第一连接条13沿第二方向延伸，用于连接箱体11内的多个电池模块100。第一连接条13在第二方向上连接多个电池模块100，可以提高多个电池模块100的整体结构强度。
在这种情况下，固定板104还包括沿第一方向向远离电池模块100的方向延伸形成的第二连接部106，第二连接部106用于连接第一连接条13。可选地，第二连接部106可以与第一连接部105分别设置于固定板104的两端。例如，在第一连接部105连接箱体11的底壁时，第二连接部106可以设置在固定板104远离底壁的位置。即，在固定板104远离底壁的位置，可向远离电池模块100的方向，即向外延伸形成第二连接部106，通过第二连接部106连接第一连接条13。这样可以在远离底壁的位置通过第一连接条13进一步保证电池10的结构强度。
第二连接部106可以平行于第一连接条13。第二连接部106的面积可以根据与第一连接条13的固定方式而设定，以满足所需的固定效果。
可选地，在本申请一个实施例中，第二连接部106可以由固定板104弯折而形成。例如，第二连接部106可以由固定板104的靠近第一连接条13的边缘向远离电池模块100的方向弯折而形成。例如，固定板104的上边缘可以向外弯折形成第二连接部106。这样，第二连接部106与固定板104的主体为一体结构，从而可以增强连接性能。
可选地，在本申请一个实施例中，固定板104还包括沿第一方向向远离电池模块100的方向延伸形成的第三连接部107，第三连接部107用于连接固定板104与隔板101。例如，在固定板104与隔板101连接的位置，可向远离电池模块100的方向，即向外延伸形成第三连接部107，固定板104通过第三连接部107与隔板101固定连接。
可选地，除了连接隔板101外，第三连接部107还可以同时实现固定板104间的连接。例如，电池模块100内每列电池单体20设置一个固定板104，电池模块100内的隔板101与两列电池单体20对应的两个固定板104通过第三连接部107固定在一起。
第三连接部107可以平行于隔板101。第三连接部107的面积可以根据固定方式而设定，以满足所需的固定效果。
可选地，在本申请一个实施例中，第三连接部107可以由固定板104弯折而形成。例如，第三连接部107可以由固定板104的靠近隔板101的边缘向远离电池模块100的方向弯折而形成。这样，第三连接部107与固定板104的主体为一体结构，从而可以增强连接性能。
可选地，在本申请一个实施例中，隔板101可以与相邻的两列电池单体20中的一列电池单体20两端的固定板104一体成型，这样只需对于另一列电池单体20设置固定板104；或者，隔板101可以与相邻的两列电池单体20对应的固定板104一体成型。
可选地，在本申请一个实施例中，多个电池模块100对应的固定板104可以为一体结构。如图7所示，多个电池模块100对应的固定板104可以为一块整板，多个电池模块100通过这一块整板固定于箱体11上，从而提高多个电池模块100的整体结构强度。可选地，固定板104上可以设置与电池模块100对应的限位条108，限位条108用于插入相邻的电池模块100间的间隙内，这样可以便于电池模块100的安装。
可选地，在本申请一个实施例中，如图8所示，隔板101的端部在第一方向上凸出于N列电池单体20，固定结构102包括隔板101的端部在第一方向上凸出于N列电池单体20的第一凸出部分121。隔板101可以通过第一凸出部分121连接箱体11的壁。例如，箱体11的壁上可以设置与第一凸出部分121对应的连接部，以实现二者间的连接。
可选地，在本申请一个实施例中，如图9所示，固定结构102还包括第一延伸部123，第一延伸部123与第一凸出部分121固定连接且沿第二方向延伸，第一延伸部123用于连接箱体11的壁。例如，以连接箱体11的底壁为例，在第一凸出部分121靠近底壁的位置，第一延伸部123与第一凸出部分121固定连接且沿第二方向延伸 以形成与底壁连接的区域，从而连接箱体11的底壁。当然，固定结构102的第一延伸部123也可以和箱体11的侧壁连接，本申请对此并不限定。
第一延伸部123可以平行于所连接的箱体11的壁，例如，第一延伸部123平行于箱体11的底壁。第一延伸部123的面积可以根据与所连接的箱体11的壁的固定方式而设定，以满足所需的固定效果。
可选地，第一延伸部123与第一凸出部分121可以一体成型，这样可以增强连接性能。
可选地，在本申请一个实施例中，在电池10设置有第一连接条13的情况下，固定结构102还包括第二延伸部124，第二延伸部124与第一凸出部分121固定连接且沿第二方向延伸，第二延伸部124用于连接第一连接条13。例如，在第一延伸部123连接箱体11的底壁时，第二延伸部124可以设置在第一凸出部分121远离底壁的位置。即，在第一凸出部分121远离底壁的位置，第二延伸部124与第一凸出部分121固定连接且沿第二方向延伸以形成与第一连接条13连接的区域，从而连接第一连接条13。这样可以在远离底壁的位置通过第一连接条13进一步保证电池10的结构强度。
第二延伸部124可以平行于第一连接条13。第二延伸部124的面积可以根据与第一连接条13的固定方式而设定，以满足所需的固定效果。
可选地，第二延伸部124与第一凸出部分121可以一体成型，这样可以增强连接性能。
可选地，在本申请一个实施例中，如图10所示，电池模块100还可以包括：附接板109。附接板109沿第一方向延伸且固定连接于隔板101，附接板109沿第二方向凸出于隔板101并附接于相邻的两列电池单体20中的每个电池单体20。例如，附接板109可以垂直连接于隔板101，使得隔板101连接电池单体20的侧壁，附接板109连接电池单体20的底壁和/或顶壁，从而进一步加强对电池单体20的固定效果。
可选地，附接板109可以采用与隔板101相同的材料，例如，金属、塑料或复合材料。附接板109的厚度也可以与隔板101相同。附接板109的材料或厚度也可以与隔板101不同，本申请实施例对此并不限定。
可选地，附接板109可以与相邻的两列电池单体20中的每个电池单体20固定连接。这样，每个电池单体20均被附接板109和隔板101固定，从而能够进一步提升固定效果。
可选地，附接板109与电池单体20之间可以通过粘接的方式固定连接，例如，通过结构胶粘接，但本申请实施例对此并不限定。
可选地，在本申请一个实施例中，附接板109在第一方向上凸出于N列电池单体20，固定结构102包括附接板109在第一方向上凸出于N列电池单体20的第二凸出部分122。第二凸出部分122可用于连接箱体11的壁，例如，可以连接箱体11的底壁，从而可以将电池单体20的载荷传递到该箱体11的壁，从而保证电池10的结构强度。当然，附接板109的第二凸出部分122也可以与箱体11的侧壁连接，本申请对此并不限定。
第二凸出部分122的面积可以根据与待连接的箱体11的壁的固定方式而设定，以满足所需的固定效果。
可选地，在本申请一个实施例中，隔板101与附接板109在垂直于第一方向上的截面形状可以为倒T型，工字型，Z型，S型，T型，C型或L型等。
具体而言，在隔板101与附接板109在垂直于第一方向上的截面形状为倒T型或L型时，第二凸出部分122可用于连接箱体11的底壁；为工字型、Z型、S型或C型时，第二凸出部分122可用于连接箱体11的底壁以及第一连接条13，为T型时，第二凸出部分122可用于连接箱体11的顶壁和/或第一连接条13。
可选地，在本申请一个实施例中，隔板101可以与附接板109一体成型，这样可以提升隔板101与附接板109的连接性能。隔板101与附接板109之间也可以采用各种固定方式连接，本申请实施例对此并不限定。
可选地，在本申请一个实施例中，电池单体20为长方体型电池单体20。长方体型电池单体20包括两个相对的第一侧壁和两个相对的第二侧壁，第一侧壁的面积大于第二侧壁的面积，即，第一侧壁为宽面侧壁，第二侧壁为窄面侧壁。在这种情况下，隔板101与第一侧壁即宽面侧壁固定连接。也就是说，在本实施例中，每列电池单体20的窄面侧壁相连，从而沿第一方向排列成一列；隔板101与每个电池单体20的宽面侧壁固定连接。这样隔板101可以更容易接受到电池单体20的载荷，从而便于将电池单体20的载荷传递到箱体。
可选地，在本申请一个实施例中，如图11所示，隔板101可以具有与第一侧壁对应设置的开孔125，开孔125的面积小于第一侧壁的面积，这样每个开孔125的边框可以固定连接于电池单体20第一侧壁。开孔125可以为方形或圆形，本申请实施 例对此并不限定。在隔板101上设置开孔125，可以减少隔板101的用料，从而降低隔板101的重量。
可选地，在本申请一个实施例中，如图12所示，电池单体20也可以为圆柱型电池单体20，在这种情况下，隔板101可以为与圆柱型电池单体20的侧面适配的S型隔板101，这样可以更好地连接每个电池单体20。
应理解，对于图12，相应的固定结构102可以采用前述各实施例中的设置，为了简洁，在此不再赘述。
可选地，在本申请一个实施例中，隔板101或附接板109可以为隔热板。例如，隔板101或附接板109的材料可以为隔热材料，或者隔板101或附接板109表面可以喷涂隔热材料，从而在固定电池单体20的同时还能够实现电池单体20间的隔热。
可选地，在本申请一个实施例中，隔板101或附接板109可以为冷却板或加热板。例如，隔板101或附接板109中可以设置冷却流道或加热电阻丝，从而在固定电池单体20的同时还能够实现对电池单体20的冷却或加热。
可选地，在本申请一个实施例中，隔板101可以与箱体11一体成型。例如，可以用箱体11的型材挤出隔板101。这样可以提高隔板101与箱体11的连接性能。
可选地，在本申请一个实施例中，电池10还包括：汇流部件12。汇流部件12用于与电池单体20电连接。其中，电池模块100中至少三个电池单体20通过汇流部件12连接其他电池模块100中的电池单体20。较多的电池单体20通过汇流部件12与其他电池模块100中的电池单体20连接，可以通过汇流部件12增强电池模块100间的连接性能。
可选地，汇流部件12可以沿第二方向串联电池单体20。在电池模块100内的每列电池单体20沿第一方向排列的情况下，汇流部件12沿第二方向串联电池单体20，可以使得相邻电池模块100间每对相邻的电池单体20均通过汇流部件12连接，从而可以增强电池模块100间的连接性能。
可选地，在本申请一个实施例中，电池10还可以包括：第二连接条14。在电池模块100设置于箱体11的底壁上时，第二连接条14设置于电池模块100的远离箱体11的底壁的表面，第二连接条14沿第二方向延伸，且与箱体11内的多个电池模块 100固定连接。也就是说，第二连接条14设置于电池模块100的上表面，这样可以在第二方向上约束电池单体20增加电池10的结构强度，同时抵抗电池单体20的膨胀力。
应理解，本申请各实施例中相关的部分可以相互参考，为了简洁不再赘述。
本申请一个实施例还提供了一种用电设备，该用电设备可以包括前述实施例中的电池10。可选地，该用电设备可以为车辆1、船舶或航天器等，但本申请实施例对此并不限定。
上文描述了本申请实施例的电池10和用电设备，下面将描述本申请实施例的制备电池的方法和设备，其中未详细描述的部分可参见前述各实施例。
图13示出了本申请一个实施例的制备电池的方法300的示意性流程图。如图13所示，该方法300可以包括：
310，提供电池模块100，电池模块100包括：N列电池单体20，N列电池单体20中的每列电池单体20沿第一方向排列，N列电池单体20沿第二方向排列，N为大于1的整数，第一方向垂直于第二方向；N-1个隔板101，隔板101沿第一方向延伸且设置于相邻的两列电池单体20之间，隔板101与两列电池单体20中的每个电池单体20固定连接；其中，隔板101在第一方向上的端部设置有固定结构102；
320，提供箱体11；
330，将电池模块100容纳于箱体11内，其中，隔板101通过固定结构102固定于箱体11。
图14示出了本申请一个实施例的制备电池的设备400的示意性框图。如图14所示，制备电池的设备400可以包括：提供模块410和安装模块420。
提供模块410，用于提供电池模块100和箱体11，电池模块100包括：N列电池单体20，N列电池单体20中的每列电池单体20沿第一方向排列，N列电池单体20沿第二方向排列，N为大于1的整数，第一方向垂直于第二方向；N-1个隔板101，隔板101沿第一方向延伸且设置于相邻的两列电池单体20之间，隔板101与两列电池单体20中的每个电池单体20固定连接；其中，隔板101在第一方向上的端部设置有固定结构102；
安装模块420，用于将电池模块100容纳于箱体11内，其中，隔板101通 过固定结构102固定于箱体11。
虽然已经参考优选实施例对本申请进行了描述，但在不脱离本申请的范围的情况下，可以对其进行各种改进并且可以用等效物替换其中的部件。尤其是，只要不存在结构冲突，各个实施例中所提到的各项技术特征均可以任意方式组合起来。本申请并不局限于文中公开的特定实施例，而是包括落入权利要求的范围内的所有技术方案。

Claims (27)

  1. 一种电池，其特征在于，包括：
    电池模块(100)和箱体(11)，所述电池模块(100)容纳于所述箱体(11)内；
    所述电池模块(100)包括：
    N列电池单体(20)，所述N列电池单体(20)中的每列电池单体(20)沿第一方向排列，所述N列电池单体(20)沿第二方向排列，N为大于1的整数，所述第一方向垂直于所述第二方向；
    N-1个隔板(101)，所述隔板(101)沿所述第一方向延伸且设置于相邻的两列电池单体(20)之间，所述隔板(101)与所述两列电池单体(20)中的每个电池单体(20)固定连接；
    其中，所述隔板(101)在所述第一方向上的端部设置有固定结构(102)，所述隔板(101)通过所述固定结构(102)固定于所述箱体(11)。
  2. 根据权利要求1所述的电池，其特征在于，所述电池包括多个所述电池模块(100)，多个所述电池模块(100)沿所述第二方向排列，相邻的所述电池模块(100)间具有间隙。
  3. 根据权利要求1或2所述的电池，其特征在于，所述固定结构(102)包括固定板(104)，所述固定板(104)与所述隔板(101)的所述端部固定连接，且与位于所述隔板(101)的所述端部的电池单体(20)固定连接。
  4. 根据权利要求3所述的电池，其特征在于，所述固定板(104)包括沿所述第一方向向远离所述电池模块(100)的方向延伸形成的第一连接部(105)，所述第一连接部(105)用于连接所述箱体(11)的壁。
  5. 根据权利要求4所述的电池，其特征在于，所述电池还包括：
    第一连接条(13)，所述第一连接条(13)沿所述第二方向延伸，用于连接所述箱体(11)内的多个所述电池模块(100)；
    其中，所述固定板(104)还包括沿所述第一方向向远离所述电池模块(100)的方向延伸形成的第二连接部(106)，所述第二连接部(106)用于连接所述第一连接条(13)。
  6. 根据权利要求4或5所述的电池，其特征在于，所述固定板(104)还包括沿所述第一方向向远离所述电池模块(100)的方向延伸形成的第三连接部(107)，所述第三连接部(107)用于连接所述固定板(104)与所述隔板(101)。
  7. 根据权利要求3至6中任一项所述的电池，其特征在于，多个所述电池模块(100)对应的所述固定板(104)为一体结构。
  8. 根据权利要求7所述的电池，其特征在于，所述固定板(104)上设置有与所述电池模块(100)对应的限位条(108)，所述限位条(108)用于插入相邻的所述电池模块(100)间的间隙内。
  9. 根据权利要求1或2所述的电池，其特征在于，所述隔板(101)的所述端部在所述第一方向上凸出于所述N列电池单体(20)，所述固定结构(102)包括所述隔板(101)的所述端部在所述第一方向上凸出于所述N列电池单体(20)的第一凸出部分(121)。
  10. 根据权利要求9所述的电池，其特征在于，所述固定结构(102)还包括第一延伸部(123)，所述第一延伸部(123)与所述第一凸出部分(121)固定连接且沿所述第二方向延伸，所述第一延伸部(123)用于连接所述箱体(11)的壁。
  11. 根据权利要求10所述的电池，其特征在于，所述电池还包括：
    第一连接条(13)，所述第一连接条(13)沿所述第二方向延伸，用于连接所述箱体(11)内的多个所述电池模块(100)；
    其中，所述固定结构(102)还包括第二延伸部(124)，所述第二延伸部(124)与所述第一凸出部分(121)固定连接且沿所述第二方向延伸，所述第二延伸部(124)用于连接所述第一连接条(13)。
  12. 根据权利要求1至11中任一项所述的电池，其特征在于，所述电池模块(100)还包括：
    附接板(109)，所述附接板(109)沿所述第一方向延伸且固定连接于所述隔板(101)，所述附接板(109)沿所述第二方向凸出于所述隔板(101)并附接于所述相邻的两列电池单体(20)中的每个电池单体(20)。
  13. 根据权利要求12所述的电池，其特征在于，所述附接板(109)与所述相邻的两列电池单体(20)中的每个电池单体(20)固定连接。
  14. 根据权利要求12或13所述的电池，其特征在于，所述附接板(109)在所述 第一方向上凸出于所述N列电池单体(20)，所述固定结构(102)包括所述附接板(109)在所述第一方向上凸出于所述N列电池单体(20)的第二凸出部分(122)。
  15. 根据权利要求12至14中任一项所述的电池，其特征在于，所述隔板(101)与所述附接板(109)一体成型。
  16. 根据权利要求1至15中任一项所述的电池，其特征在于，N为2。
  17. 根据权利要求1至16中任一项所述的电池，其特征在于，所述电池单体(20)为长方体型电池单体(20)，所述长方体型电池单体(20)包括两个相对的第一侧壁和两个相对的第二侧壁，所述第一侧壁的面积大于所述第二侧壁的面积，所述隔板(101)与所述第一侧壁固定连接。
  18. 根据权利要求17所述的电池，其特征在于，所述隔板(101)具有与所述第一侧壁对应设置的开孔(125)，所述开孔(125)的面积小于所述第一侧壁的面积。
  19. 根据权利要求1至18中任一项所述的电池，其特征在于，所述电池单体(20)为圆柱型电池单体(20)，所述隔板(101)为与所述圆柱型电池单体(20)的侧面适配的S型隔板(101)。
  20. 根据权利要求1至19中任一项所述的电池，其特征在于，所述隔板(101)为隔热板、冷却板或加热板。
  21. 根据权利要求1至20中任一项所述的电池，其特征在于，所述隔板(101)与所述箱体(11)一体成型。
  22. 根据权利要求1至21中任一项所述的电池，其特征在于，所述电池还包括：
    汇流部件(12)，用于与所述电池单体(20)电连接；
    其中，所述电池模块(100)中至少三个电池单体(20)通过所述汇流部件(12)连接其他电池模块(100)中的电池单体(20)。
  23. 根据权利要求22所述的电池，其特征在于，所述汇流部件(12)沿所述第二方向串联所述电池单体(20)。
  24. 根据权利要求1至23中任一项所述的电池，其特征在于，所述电池模块(100)设置于所述箱体(11)的底壁上；
    所述电池还包括：
    第二连接条(14)，设置于所述电池模块(100)的远离所述箱体(11)的底壁的表面，所述第二连接条(14)沿所述第二方向延伸，且与所述箱体(11)内的多个所 述电池模块(100)固定连接。
  25. 一种用电设备，其特征在于，包括：根据权利要求1至24中任一项所述的电池(10)，所述电池(10)用于提供电能。
  26. 一种制备电池的方法，其特征在于，包括：
    提供(310)电池模块(100)，所述电池模块(100)包括：
    N列电池单体(20)，所述N列电池单体(20)中的每列电池单体(20)沿第一方向排列，所述N列电池单体(20)沿第二方向排列，N为大于1的整数，所述第一方向垂直于所述第二方向；
    N-1个隔板(101)，所述隔板(101)沿所述第一方向延伸且设置于相邻的两列电池单体(20)之间，所述隔板(101)与所述两列电池单体(20)中的每个电池单体(20)固定连接；
    其中，所述隔板(101)在所述第一方向上的端部设置有固定结构(102)；
    提供(320)箱体(11)；
    将所述电池模块(100)容纳(330)于所述箱体(11)内，其中，所述隔板(101)通过所述固定结构(102)固定于所述箱体(11)。
  27. 一种制备电池的设备，其特征在于，包括：
    提供模块(410)，用于提供电池模块(100)和箱体(11)，所述电池模块(100)包括：
    N列电池单体(20)，所述N列电池单体(20)中的每列电池单体(20)沿第一方向排列，所述N列电池单体(20)沿第二方向排列，N为大于1的整数，所述第一方向垂直于所述第二方向；
    N-1个隔板(101)，所述隔板(101)沿所述第一方向延伸且设置于相邻的两列电池单体(20)之间，所述隔板(101)与所述两列电池单体(20)中的每个电池单体(20)固定连接；
    其中，所述隔板(101)在所述第一方向上的端部设置有固定结构(102)；以及，
    安装模块(420)，用于将所述电池模块(100)容纳于所述箱体(11)内，其中，所述隔板(101)通过所述固定结构(102)固定于所述箱体(11)。
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