CN112259776A - Electricity storage unit, electricity storage module, and battery - Google Patents
Electricity storage unit, electricity storage module, and battery Download PDFInfo
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- CN112259776A CN112259776A CN201910589251.0A CN201910589251A CN112259776A CN 112259776 A CN112259776 A CN 112259776A CN 201910589251 A CN201910589251 A CN 201910589251A CN 112259776 A CN112259776 A CN 112259776A
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0413—Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
- H01M10/0436—Small-sized flat cells or batteries for portable equipment
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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
- 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
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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
- 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
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/70—Carriers or collectors characterised by shape or form
- H01M4/72—Grids
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- 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
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
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Abstract
本发明公开一种储电单元、储电模块以及电池，储电单元包括片状的固态电解质，位于固定电解质相对两侧的正极片和负极片,正极片相对于固态电质质的另一侧设有导电片，储电模块包括多个相邻并列的储电单元，且每二相邻储电单元的导电片与负极片之间设有绝缘隔离的隔离膜，电池包括储电模块和包覆于储电模块外侧电池壳，其中，储电单元组成构造中的固态电解质、正极片、负极片和导电片皆为扁平化的薄型体，使储电单元具备较大表面积的特性，而具备高蓄电量的功能且能提高充电、放电的性能，储电模块中相邻并列的多个储电单元能以并联方式设置，使其具备快速充电与慢速放电的特性。
The present invention discloses an electricity storage unit, an electricity storage module and a battery. The electricity storage unit comprises a sheet-shaped solid electrolyte, a positive electrode sheet and a negative electrode sheet located on opposite sides of the fixed electrolyte, a conductive sheet is provided on the other side of the positive electrode sheet relative to the solid electrolyte, the electricity storage module comprises a plurality of adjacent and parallel electricity storage units, and an insulating and isolating isolation film is provided between the conductive sheet and the negative electrode sheet of every two adjacent electricity storage units. The battery comprises the electricity storage module and a battery shell coated on the outer side of the electricity storage module, wherein the solid electrolyte, the positive electrode sheet, the negative electrode sheet and the conductive sheet in the composition structure of the electricity storage unit are all flattened thin bodies, so that the electricity storage unit has the characteristics of a large surface area, and has the function of high storage capacity and can improve the performance of charging and discharging. The plurality of adjacent and parallel electricity storage units in the electricity storage module can be arranged in parallel, so that it has the characteristics of fast charging and slow discharging.
Description
Technical Field
The present invention relates to a battery, and more particularly, to an electric storage unit, an electric storage module and a battery with high electric storage capacity.
Background
Batteries are widely used in portable electromechanical or portable electronic devices to provide the electric energy required for the electromechanical operation or the electronic device operation. In order to improve the practical performance of the battery, the conventional battery products are mainly developed toward the characteristics of improving the amount of stored electricity or performing quick charge.
In the existing known battery products, liquid electrolyte or semi-solid electrolyte is mainly arranged between a positive plate and a negative plate, and an electricity storage unit formed by the positive plate, the negative plate and the liquid electrolyte or the semi-solid electrolyte has reversible electrochemical reaction characteristics, so that the known battery has the performance of multiple charging and discharging.
However, the conventional battery products have poor structural design of the electricity storage unit, so that it is difficult to achieve higher electricity storage capacity, and the charging time of the battery products still needs to be longer, which is desired to be further developed and improved by the related manufacturers.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the utility model provides an electricity storage unit, electricity storage module and battery overcome the electric capacity of the electricity storage unit of current battery product and is on the low side to and charge time scheduling problem on the long side.
The technical solution proposed by the invention is as follows: the utility model provides an electricity storage unit, it includes solid-state electrolyte of a slice, a positive plate, negative pole piece and a conducting strip, this positive plate and this negative pole piece set up respectively in the relative both sides face of this solid-state electrolyte, this conducting strip is located this positive plate and is relative the opposite side of this solid-state electrolyte.
In the above power storage unit, the conductive sheet has a positive electrode electrical connection portion extending out of the solid electrolyte, the negative electrode sheet has a negative electrode electrical connection portion extending out of the solid electrolyte, and the positive electrode electrical connection portion and the negative electrode electrical connection portion are respectively located at two opposite sides of the power storage unit.
The invention has the advantages that the combination of the solid electrolyte, the positive plate, the negative plate and the conducting plate in the constitution structure is a flat thin body, so that the positive plate and the negative plate of the electricity storage unit have the characteristic of enlarging the surface area, have the function of high capacity, improve the charging and discharging performance of the electricity storage unit, shorten the distance from the positive electrode to the negative electrode, shorten the charging time and reduce the temperature generated during charging.
The other technical solution proposed by the invention is as follows: provided is an electricity storage module including:
the electric energy storage device comprises a plurality of electric energy storage units, a plurality of electric energy storage units and a control unit, wherein each electric energy storage unit comprises a flaky solid electrolyte, a positive plate, a negative plate and a conducting plate; and
and the isolating films are respectively arranged between every two adjacent parallel electricity storage units to form insulating isolation.
In the above power storage module, the negative electrode plates and the conductive plates are arranged between every two adjacent parallel power storage units at intervals, and the isolation film is arranged between the negative electrode plates and the conductive plates.
In the above power storage module, in the combination of the plurality of power storage units, the first conducting strip of the power storage unit is located at the outer side and is provided with a first insulating plate, the last negative strip of the power storage unit is located at the outer side and is provided with a second insulating plate, the conducting strip of each power storage unit is provided with a positive electrical connection portion extending out of the solid electrolyte, the negative strip of each power storage unit is provided with a negative electrical connection portion extending out of the solid electrolyte, and the positive electrical connection portion and the negative electrical connection portion are respectively located at two opposite sides of the power storage unit.
The electricity storage module has the advantages that the electricity storage module is a set of a plurality of groups of electricity storage units, each electricity storage unit is a flattened thin body by virtue of the solid electrolyte, the positive plate, the negative plate and the conducting plate, so that the surface area of the electricity storage unit is enlarged, the electricity storage module has the function of high electricity storage capacity, the electricity storage module is further formed by adjacently arranging the plurality of groups of the flattened thin electricity storage units in a face-to-face mode, and each two electricity storage units are insulated and isolated by the sheet-shaped isolating film, so that the electricity storage units can have the characteristics of quick charge and slow discharge in a parallel mode, the charge and discharge performance of the electricity storage units can be improved, the distance from the positive electrode to the negative electrode of current can be shortened, the charge time can be shortened, and the temperature generated during charge can be reduced.
In addition, the electricity storage module of the invention utilizes a structure that a plurality of electricity storage units are arranged in a single module, so that the anode and the cathode of each electricity storage unit can be connected in parallel, thereby obtaining the electricity storage module with low voltage and high current, and each different electricity storage module can be respectively connected in series and in parallel according to the requirement of the product, thereby obtaining the battery products with different current or voltage.
The other technical solution proposed by the invention is as follows: provided is a battery, including:
the power storage module comprises a plurality of power storage units and a plurality of isolating membranes, each power storage unit comprises a sheet-shaped solid electrolyte, a positive plate, a negative plate and a conducting plate, the positive plate and the negative plate are respectively arranged on two opposite side surfaces of the solid electrolyte, the conducting plate is arranged on the other side of the positive plate opposite to the solid electrolyte, the plurality of power storage units are arranged in parallel at intervals, and the isolating membranes are respectively arranged between every two adjacent parallel power storage units to form insulating isolation; and
the battery case is insulated and coated on the outer side of the electricity storage module and comprises an anode terminal and a cathode terminal which are insulated and spaced, the conducting strips of the electricity storage units are electrically connected with the anode terminal in parallel, and the cathode strips of the electricity storage units are electrically connected with the cathode terminal in parallel.
In the battery, the electricity storage module includes a positive conductive plate and a negative conductive plate, the conductive plates of the electricity storage units are connected in parallel with the positive conductive plate and electrically connected to the positive terminal through the positive conductive plate, and the negative plates of the electricity storage units are connected in parallel with the negative conductive plate and electrically connected to the negative terminal through the negative conductive plate; the battery case comprises two heat dissipation plates and two insulating heat conduction films, wherein the two heat dissipation plates are respectively arranged on the outer sides of a positive electrode conducting plate and a negative electrode conducting plate of the electricity storage module, one insulating heat conduction film is arranged between the positive electrode conducting plate and the adjacent heat dissipation plate on the side, and the other insulating heat conduction film is arranged between the negative electrode conducting plate and the adjacent heat dissipation plate on the side.
In the battery, the electricity storage module includes a positive conductive plate and a negative conductive plate, the conductive plates of the electricity storage units are connected in parallel with the positive conductive plate and electrically connected to the positive terminal through the positive conductive plate, and the negative plates of the electricity storage units are connected in parallel with the negative conductive plate and electrically connected to the negative terminal through the negative conductive plate; the battery case comprises a circuit board, the positive terminal and the negative terminal are arranged in the circuit board, the circuit board comprises a control element, the control element can monitor the voltage difference value of each electricity storage unit of the electricity storage module within a set range, and the circuit board is provided with a pressure release valve communicated to the inside of the battery case.
In the battery, the electricity storage module includes a positive conductive plate and a negative conductive plate, the conductive plates of the electricity storage units are connected in parallel with the positive conductive plate and electrically connected to the positive terminal through the positive conductive plate, and the negative plates of the electricity storage units are connected in parallel with the negative conductive plate and electrically connected to the negative terminal through the negative conductive plate; the battery case comprises two heat dissipation plates, two insulating heat conduction films, a circuit board and a pressure release valve, wherein the two heat dissipation plates are respectively arranged on the outer sides of a positive electrode current conduction plate and a negative electrode current conduction plate of the electricity storage module, one insulating heat conduction film is arranged between the positive electrode current conduction plate and the heat dissipation plate adjacent to the positive electrode current conduction plate, the other insulating heat conduction film is arranged between the negative electrode current conduction plate and the heat dissipation plate adjacent to the negative electrode current conduction plate, the positive electrode terminal and the negative electrode terminal are arranged in the circuit board, the circuit board comprises a control element, the control element can monitor each voltage value of the electricity storage unit of the electricity storage module within a set range, and the pressure release valve is arranged on the circuit board and communicated to the inside of the battery case.
In the battery, the conducting strip of each electricity storage unit has a positive electrode electrical connection part extending out of the solid electrolyte, the negative electrode strip of each electricity storage unit has a negative electrode electrical connection part extending out of the solid electrolyte, the positive electrode electrical connection part and the negative electrode electrical connection part are respectively located at two opposite sides of the electricity storage unit, the positive electrode electrical connection parts of the electricity storage units are located at one side of the electricity storage module, the positive electrode electrical connection parts are laterally bent and isolated from the laterally adjacent negative electrode strips by the isolating film, the negative electrode electrical connection parts of the electricity storage units are located at the other side of the electricity storage module, the negative electrode electrical connection parts are laterally bent and isolated from the laterally adjacent conducting strips by the isolating film, and the conducting strips of the electricity storage units are connected with the positive electrode conducting plate in parallel by the laterally bent positive electrode electrical connection parts, the negative electrode plates of the plurality of electricity storage units are connected with the negative electrode conducting plate in parallel through the laterally bent negative electrode electric connection parts.
The battery has the advantages that the battery case is used for protecting the electricity storage module, the electricity storage module is integrated by a plurality of groups of electricity storage units, each electricity storage unit is a flat thin body by a solid electrolyte, a positive plate, a negative plate and a conducting plate, the surface area of the electricity storage unit is enlarged, the electricity storage module has the function of high electricity storage capacity, the charging and discharging performance of the electricity storage units is improved, the distance from the positive electrode to the negative electrode of current is shortened, the charging time is shortened, the temperature generated during charging is reduced, the electricity storage module is further formed by adjacently arranging the plurality of groups of thin flat electricity storage units in a face-to-face mode, each two electricity storage units are insulated and isolated by a thin isolating membrane, and the electricity storage units can have the characteristics of quick charging and slow discharging in a parallel connection mode. And each different electricity storage module can be connected in series and parallel respectively according to the requirements of the battery products, so that the battery products with different currents or voltages can be obtained.
The invention can further utilize two heat dissipation plates and two insulating heat conduction films which are arranged in the battery shell, wherein the two heat dissipation plates are respectively arranged on the outer side of the positive electrode current conduction plate and the outer side of the negative electrode current conduction plate of the electricity storage module, one insulating heat conduction film is arranged between the positive electrode current conduction plate and the adjacent heat dissipation plate on the side, and the other insulating heat conduction film is arranged between the negative electrode current conduction plate and the adjacent heat dissipation plate on the side, so that heat generated when the electricity storage module is charged or discharged can be dissipated outside through the heat dissipation plates and the insulating heat conduction films, and the better charging and discharging effects can be achieved.
The invention can further utilize the fact that the battery shell can be additionally provided with a pressure relief valve communicated with the interior of the battery shell, so that when the gas pressure in the battery shell reaches a preset value in the process of charging or discharging the battery, the pressure in the battery can be reduced through the pressure relief valve, and the use safety of the battery is ensured.
The battery shell of the battery can also comprise a circuit board with a control element, the voltage difference value of each electricity storage unit of the electricity storage module is monitored by the control element to be within a set range, so that each electricity storage unit can be charged simultaneously in the charging process of a plurality of groups of electricity storage units connected in parallel, and the temperature of the electricity storage module can be controlled by the control element, so that the use safety of the battery can be ensured.
The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.
Drawings
Fig. 1 is a schematic end plan view of a preferred embodiment of the power storage unit of the present invention.
Fig. 2 is a schematic end plan view of a power storage module according to a preferred embodiment of the present invention.
Fig. 3 is a schematic end plan view of a preferred embodiment of the cell of the present invention.
Fig. 4 is a schematic perspective view of a battery according to a preferred embodiment of the present invention.
The reference numerals are briefly described:
1 electricity storage module
10 electricity storage unit
11 solid electrolyte
12 positive plate
13 negative plate
131 negative electrode electrical connection part
14 conductive sheet
141 positive electrode electric connection part
20 isolating film
30 insulating plate
40 cell case
401 positive terminal
402 negative terminal
41 positive conductive plate
42 negative conductive plate
43 Heat sink plate
44 insulating heat-conducting film
45 circuit board
451 control element
46 pressure relief valve
Detailed Description
According to the technical solution described in the above summary of the invention, the invention includes an electricity storage unit, an electricity storage module and a battery, and the following describes the technical means adopted by the invention to achieve the predetermined purpose with reference to the drawings and the preferred embodiments of the invention.
Referring to fig. 1, which shows a preferred embodiment of the power storage unit 10 of the present invention, the power storage unit 10 includes a solid electrolyte 11, a positive electrode sheet 12, a negative electrode sheet 13 and a conductive sheet 14. The solid electrolyte 11 is a sheet-shaped body, the positive plate 12 and the negative plate 13 are respectively disposed on two opposite sides of the solid electrolyte 11, and the conductive plate 14 is disposed on the other side of the positive plate 12 opposite to the solid electrolyte 11. The conductive sheet 14 has a positive electrode electrical connection portion 141 extending out of the solid electrolyte 11, the negative electrode sheet 13 has a negative electrode electrical connection portion 131 extending out of the solid electrolyte 11, the positive electrode electrical connection portion 141 and the negative electrode electrical connection portion 131 are respectively located at two opposite sides of the power storage unit 10, and the positive electrode electrical connection portion 141 and the negative electrode electrical connection portion 131 are used as external electrical connection portions.
In the electricity storage unit 10, the solid electrolyte 11 may be made of sodium salt, lithium zirconate, or the like, the positive electrode sheet 12 may be made of a multi-layer composite material including a copper foil, a solid electrolyte, and a conductive agent, the negative electrode sheet 13 may be made of metal-attached lithium or graphene, or the like, and the conductive sheet 14 may be made of a highly conductive material, for example: copper, and the like. The materials of the solid electrolyte 11, the positive plate 12, the negative plate 13 and the conductive plate 14 are conventional materials, and the material characteristics thereof are not described herein.
As shown in fig. 1, the electricity storage units 10 can be used in a single group or in a plurality of groups of electricity storage units 10, wherein the solid electrolyte 11, the positive electrode plate 12, the negative electrode plate 13 and the conductive sheet 14 are flat thin bodies, so that the positive electrode plate 12 and the negative electrode plate 13 of the electricity storage unit 10 have the characteristics of enlarging the surface area, thereby having the function of high capacity, improving the charging and discharging performance of the electricity storage unit 10, shortening the distance from the positive electrode to the negative electrode, shortening the charging time and reducing the temperature generated during charging.
As shown in fig. 2, which discloses a preferred embodiment of the electricity storage module 1 of the present invention, the electricity storage module 1 includes a plurality of electricity storage units 10 and a plurality of isolation films 20, the plurality of electricity storage units 10 are parallel and spaced, the electricity storage units 10 are the same as the preferred embodiment of the electricity storage units 10 disclosed in fig. 1, wherein each of the electricity storage units 10 includes a sheet-shaped solid electrolyte 11, a positive plate 12, a negative plate 13 and a conductive plate 14, the positive plate 12 and the negative plate 13 are respectively disposed on two opposite sides of the solid electrolyte 11, the conductive plate 14 is disposed on the other side of the positive plate 12 opposite to the solid electrolyte 11, and the isolation films 20 are respectively disposed between each two adjacent parallel electricity storage units 10 to form an insulation isolation.
As shown in fig. 2, in the foregoing power storage module 1, the negative electrode sheets 13 and the conductive sheets 14 are arranged between every two adjacent parallel power storage units 10 at intervals, and the isolation film 20 is disposed between the negative electrode sheets 13 and the conductive sheets 14.
As shown in fig. 2, in the foregoing power storage module 1, the conductive sheet 14 of each power storage unit 10 has a positive electrode electrical connection portion 141 extending out of the solid electrolyte 11, the negative electrode sheet 13 of each power storage unit 10 has a negative electrode electrical connection portion 131 extending out of the solid electrolyte, the positive electrode electrical connection portion 141 and the negative electrode electrical connection portion 131 are respectively located at two opposite sides of the power storage unit 10, and the positive electrode electrical connection portion 141 and the negative electrode electrical connection portion 131 are used as external electrical connection portions. In the preferred embodiment, the positive electrode electrical connection portions 141 of the plurality of power storage units 10 are located on one side of the power storage module 1, and the negative electrode electrical connection portions 131 of the plurality of power storage units 10 are located on the other side of the power storage module 1, so that the plurality of power storage units 10 in the power storage module 1 are electrically connected to each other from the outside.
As shown in fig. 2, two insulating plates 30 may be further added to the electricity storage module 1, wherein one insulating plate 30 is disposed outside the conductive sheet 14 of the first electricity storage unit 10 in the combination of the electricity storage units 10, and the other insulating plate 30 is disposed outside the negative electrode sheet 13 of the last electricity storage unit 10 in the combination of the electricity storage units 10, and the two insulating plates 30 are respectively disposed on two opposite sides of the combination of the electricity storage units 10 and respectively located outside the conductive sheet 14 and the negative electrode sheet 13 to provide insulation and protection performance. The insulating plate 30 may be a plate made of an insulating material such as nylon.
As shown in fig. 2, the electricity storage module 1 uses a set of a plurality of sets of electricity storage units 10, each electricity storage unit 10 has a function of enlarging a surface area and having a high charge capacity by virtue of a flat thin-type body formed by a solid electrolyte 11, a positive electrode sheet 12, a negative electrode sheet 13 and a conductive sheet 14, and the plurality of sets of thin and flat electricity storage units 10 can be adjacently arranged in a face-to-face manner, and each two electricity storage units 10 are insulated and isolated by a thin-type isolation film 20, so that the plurality of electricity storage units 10 can have characteristics of rapid charging and slow discharging in a parallel manner. The electricity storage module 1 can improve the charging and discharging performance of the electricity storage unit 10, shorten the distance from the positive electrode to the negative electrode of the current, shorten the charging time and reduce the temperature generated during charging.
In addition, the power storage module 1 of the present invention utilizes a structure having a plurality of power storage units 10 inside a single module, so that the positive electrode and the negative electrode of each power storage unit 10 can be connected in parallel, thereby obtaining a low-voltage and high-current power storage module, and each different power storage module 1 can be connected in series and parallel respectively according to the requirement of the product, thereby obtaining battery products with different currents or voltages.
Referring to fig. 3 and 4, a preferred embodiment of the battery of the present invention is disclosed. The battery comprises an electricity storage module 1 and a battery shell 40, and the composition and the structure of the electricity storage module 1 are basically the same as those of the electricity storage module 1 shown in the figure 2 in the previous paragraph. Wherein:
as shown in fig. 3, the electricity storage module 1 includes a plurality of electricity storage units 10 and a plurality of isolation films 20, each of the electricity storage units 10 includes a sheet-shaped solid electrolyte 11, a positive plate 12, a negative plate 13 and a conductive plate 14, the positive plate 12 and the negative plate 13 are respectively disposed on two opposite sides of the solid electrolyte 11, the conductive plate 14 is disposed on the other side of the positive plate 12 opposite to the solid electrolyte 11, the electricity storage units 10 are arranged in parallel at intervals, and the isolation films 20 are respectively disposed between every two adjacent parallel electricity storage units 10 to form an insulation isolation.
As shown in fig. 3, in the foregoing power storage module 1, the negative electrode sheets 13 and the conductive sheets 14 are arranged between every two adjacent parallel power storage units 10 at intervals, and the isolation film 20 is disposed between the negative electrode sheets 13 and the conductive sheets 14.
As shown in fig. 3, in the foregoing power storage module 1, the conductive sheet 14 of each power storage unit 10 has a positive electrode electrical connection portion 141 extending out of the solid electrolyte 11, the negative electrode sheet 13 of each power storage unit 10 has a negative electrode electrical connection portion 131 extending out of the solid electrolyte, the positive electrode electrical connection portion 141 and the negative electrode electrical connection portion 131 are respectively located at two opposite sides of the power storage unit 10, and the positive electrode electrical connection portion 141 and the negative electrode electrical connection portion 131 are used as external electrical connection portions. In the preferred embodiment, the positive electrode electrical connection portions 141 of the plurality of power storage units 10 are located on one side of the power storage module 1, the positive electrode electrical connection portions 141 are bent laterally and insulated and isolated from the adjacent negative electrode sheet 13 by the isolation film 20, the negative electrode electrical connection portions 131 of the plurality of power storage units 10 are located on the other side of the power storage module 1, and the negative electrode electrical connection portions 131 are bent laterally and insulated and isolated from the adjacent conductive sheet 14 by the isolation film 20.
As shown in fig. 3 and 4, the battery case 40 is wrapped outside the electricity storage module 1 in an insulating manner, and the battery case 40 includes a positive terminal 401 and a negative terminal 402 which are spaced apart from each other in an insulating manner, the conductive sheets 14 of the electricity storage units 10 are electrically connected to the positive terminal 401 in parallel, and the negative sheets 13 of the electricity storage units 10 are electrically connected to the negative terminal 402 in parallel, so that the battery can be charged and discharged through the positive terminal 401 and the negative terminal 402 of the battery case.
In the battery, the conductive sheets 14 of the plurality of power storage units 10 may be electrically connected to the positive terminal 401 in parallel by a first conductive wire, and the negative sheets 13 of the plurality of power storage units 10 may be electrically connected to the negative terminal 402 in parallel by a second conductive wire. Alternatively, the conductive sheets 14 and the negative sheets 13 of the plurality of power storage units 10 may be electrically connected to the positive terminal 401 and the negative terminal 402 through a circuit board having a circuit.
Alternatively, as shown in fig. 3, the electricity storage module 1 further includes a positive conductive plate 41 and a negative conductive plate 42, the conductive plates 14 of the electricity storage units 10 are connected in parallel to the positive conductive plate 41 through the laterally bent positive electrical connection portions 141 thereof, and are electrically connected to the positive terminal 401 through the positive conductive plate 41, and the negative plates 13 of the electricity storage units 10 are connected in parallel to the negative conductive plate 42 through the laterally bent negative electrical connection portions 131 thereof, and are electrically connected to the negative terminal 402 through the negative conductive plate 42.
In addition, as shown in fig. 3, in addition to providing the protection function of the electricity storage module 1, the battery case 40 may further include two heat dissipation plates 43 and two insulating heat conduction films 44, the two heat dissipation plates 43 are respectively disposed on the outer sides of the positive electrode conductive plate 41 and the negative electrode conductive plate 42 of the electricity storage module 1, one insulating heat conduction film 44 is disposed between the positive electrode conductive plate 41 and the adjacent heat dissipation plate 43, and the other insulating heat conduction film 44 is disposed between the negative electrode conductive plate 42 and the adjacent heat dissipation plate 43, so that the battery case 40 has the heat dissipation function. In the preferred embodiment, the heat dissipation plate 43 is made of an aluminum plate with high thermal conductivity, and the insulating heat conduction film 44 is made of a silicon heat conduction film with thermal conductivity.
As shown in fig. 3 and 4, the battery case 40 may be further provided with a pressure relief valve 46 connected to the inside of the battery case 40, so that when the gas pressure inside the battery case 40 reaches a predetermined value during the charging or discharging process of the battery, the gas pressure inside the battery can be reduced through the pressure relief valve 46. The pressure relief valve 46 may be an existing pressure relief valve, and the detailed structure thereof is not described herein.
As shown in fig. 3 and 4, the battery case 40 may also include a circuit board 45, the positive terminal 401 and the negative terminal 402 are disposed in the circuit board 45, the pressure relief valve 46 may be disposed in the circuit board 45, and the circuit board 45 includes a control element 451, the control element 451 may be an integrated circuit element, the circuit board 45 is electrically connected to each power storage unit 10 of the power storage module 1, the control element 451 can monitor a voltage difference of each power storage unit 10 of the power storage module 1 within a set range, the set range of the voltage difference is preferably 1-0.002V, in the preferred embodiment, the set range of the voltage difference is preferably 0.02V-0.002V, so that the voltage difference of each power storage unit 10 is close during the charging process of the multiple sets of power storage units 10 connected in parallel, and each power storage unit 10 can be charged simultaneously. And the control element 451 can also monitor the temperature of each power storage unit 10 of the power storage module 1 to ensure the safety of the use thereof.
In the battery of the present invention, in addition to the battery case 40 protecting the electricity storage module 10, the electricity storage module 1 is formed by the collection of a plurality of groups of electricity storage units 10, each electricity storage unit 10 is formed by flattening a thin body of solid electrolyte 11, a positive plate 12, a negative plate 13 and a conductive plate 14, so that the surface area of the electricity storage unit is enlarged, the electricity storage module 1 has a function of high electricity storage capacity, the charging and discharging performance of the electricity storage unit 10 is improved, the distance from the positive electrode to the negative electrode of the current is shortened, the charging time is shortened, and the temperature generated during charging is reduced, and the electricity storage module 1 is further formed by adjacently arranging a plurality of groups of the flattened electricity storage units 10 in a face-to-face manner, and each two electricity storage units 10 are insulated and isolated by a thin-sheet-shaped isolation film 20, so that the electricity storage units 10 can have the characteristics of quick charging and slow discharging in a parallel manner. And each different electricity storage module 1 can be connected in series and parallel respectively according to the requirements of the battery products, so that the battery products with different currents or voltages can be obtained.
The foregoing is illustrative of the preferred embodiments of the present invention and is not to be construed as limiting thereof, since the present invention is described in the preferred embodiments and is not limited thereto. It is to be understood that the invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and that all changes and modifications to the above-described embodiments, which fall within the spirit and scope of the appended claims, are intended to be embraced therein.
Claims (10)
1. An electricity storage unit is characterized by comprising a sheet-shaped solid electrolyte, a positive plate, a negative plate and a conducting plate, wherein the positive plate and the negative plate are respectively arranged on two opposite side surfaces of the solid electrolyte, and the conducting plate is arranged on the other side of the positive plate opposite to the solid electrolyte.
2. An electricity storage unit according to claim 1, wherein the conductive sheet has a positive electrode electrical connection portion extending out of the solid electrolyte, and the negative electrode sheet has a negative electrode electrical connection portion extending out of the solid electrolyte, the positive electrode electrical connection portion and the negative electrode electrical connection portion being located on opposite sides of the electricity storage unit, respectively.
3. An electricity storage module, characterized in that it comprises:
the electric energy storage device comprises a plurality of electric energy storage units, a plurality of electric energy storage units and a control unit, wherein each electric energy storage unit comprises a flaky solid electrolyte, a positive plate, a negative plate and a conducting plate; and
and the isolating films are respectively arranged between every two adjacent parallel electricity storage units to form insulating isolation.
4. The power storage module as claimed in claim 3, wherein the negative electrode plate and the conductive plate are arranged oppositely and spaced between every two adjacent parallel power storage units, and the isolation film is arranged between the negative electrode plate and the conductive plate.
5. The power storage module of claim 3 or 4, wherein in the combination of the plurality of power storage units, the first conducting strip of the power storage unit is located at the outer side and provided with a first insulating plate, the last negative strip of the power storage unit is located at the outer side and provided with a second insulating plate, the conducting strip of each power storage unit is provided with a positive electrical connection portion extending out of the solid electrolyte, the negative strip of each power storage unit is provided with a negative electrical connection portion extending out of the solid electrolyte, and the positive electrical connection portion and the negative electrical connection portion are respectively located at two opposite sides of the power storage unit.
6. A battery, characterized in that it comprises:
the power storage module comprises a plurality of power storage units and a plurality of isolating membranes, each power storage unit comprises a sheet-shaped solid electrolyte, a positive plate, a negative plate and a conducting plate, the positive plate and the negative plate are respectively arranged on two opposite side surfaces of the solid electrolyte, the conducting plate is arranged on the other side of the positive plate opposite to the solid electrolyte, the plurality of power storage units are arranged in parallel at intervals, and the isolating membranes are respectively arranged between every two adjacent parallel power storage units to form insulating isolation; and
the battery case is insulated and coated on the outer side of the electricity storage module and comprises an anode terminal and a cathode terminal which are insulated and spaced, the conducting strips of the electricity storage units are electrically connected with the anode terminal in parallel, and the cathode strips of the electricity storage units are electrically connected with the cathode terminal in parallel.
7. The battery of claim 6, wherein the electricity storage module comprises a positive conductive plate and a negative conductive plate, the conductive plates of the electricity storage units are connected in parallel with the positive conductive plate and electrically connected with the positive terminal through the positive conductive plate, and the negative plates of the electricity storage units are connected in parallel with the negative conductive plate and electrically connected with the negative terminal through the negative conductive plate;
the battery case comprises two heat dissipation plates and two insulating heat conduction films, wherein the two heat dissipation plates are respectively arranged on the outer sides of a positive electrode conducting plate and a negative electrode conducting plate of the electricity storage module, one insulating heat conduction film is arranged between the positive electrode conducting plate and the adjacent heat dissipation plate on the side, and the other insulating heat conduction film is arranged between the negative electrode conducting plate and the adjacent heat dissipation plate on the side.
8. The battery of claim 6, wherein the electricity storage module comprises a positive conductive plate and a negative conductive plate, the conductive plates of the electricity storage units are connected in parallel with the positive conductive plate and electrically connected with the positive terminal through the positive conductive plate, and the negative plates of the electricity storage units are connected in parallel with the negative conductive plate and electrically connected with the negative terminal through the negative conductive plate;
the battery case comprises a circuit board, the positive terminal and the negative terminal are arranged in the circuit board, the circuit board comprises a control element, the control element can monitor the voltage difference value of each electricity storage unit of the electricity storage module within a set range, and the circuit board is provided with a pressure release valve communicated to the inside of the battery case.
9. The battery of claim 6, wherein the electricity storage module comprises a positive conductive plate and a negative conductive plate, the conductive plates of the electricity storage units are connected in parallel with the positive conductive plate and electrically connected with the positive terminal through the positive conductive plate, and the negative plates of the electricity storage units are connected in parallel with the negative conductive plate and electrically connected with the negative terminal through the negative conductive plate;
the battery case comprises two heat dissipation plates, two insulating heat conduction films, a circuit board and a pressure release valve, wherein the two heat dissipation plates are respectively arranged on the outer sides of a positive electrode current conduction plate and a negative electrode current conduction plate of the electricity storage module, one insulating heat conduction film is arranged between the positive electrode current conduction plate and the heat dissipation plate adjacent to the positive electrode current conduction plate, the other insulating heat conduction film is arranged between the negative electrode current conduction plate and the heat dissipation plate adjacent to the negative electrode current conduction plate, the positive electrode terminal and the negative electrode terminal are arranged in the circuit board, the circuit board comprises a control element, the control element can monitor each voltage value of the electricity storage unit of the electricity storage module within a set range, and the pressure release valve is arranged on the circuit board and communicated to the inside of the battery case.
10. The battery of claim 9, wherein the conductive sheet of each of the electricity storage units has a positive electrical connection portion extending out of the solid electrolyte, the negative sheet of each of the electricity storage units has a negative electrical connection portion extending out of the solid electrolyte, the positive electrical connection portion and the negative electrical connection portion are respectively located at opposite sides of the electricity storage unit, the positive electrical connection portions of the electricity storage units are located at one side of the electricity storage module, the positive electrical connection portions are laterally bent and insulated from the laterally adjacent negative sheets by the isolating film, the negative electrical connection portions of the electricity storage units are located at the other side of the electricity storage module, the negative electrical connection portions are laterally bent and insulated from the laterally adjacent conductive sheets by the isolating film, the conductive sheets of the electricity storage units are connected in parallel with the positive electrical connection portions thereof, the negative electrode plates of the plurality of electricity storage units are connected with the negative electrode conducting plate in parallel through the laterally bent negative electrode electric connection parts.
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| CN201910589251.0A CN112259776B (en) | 2019-07-02 | 2019-07-02 | Electricity storage unit, electricity storage module, and battery |
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| CN201910589251.0A CN112259776B (en) | 2019-07-02 | 2019-07-02 | Electricity storage unit, electricity storage module, and battery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115332602A (en) * | 2021-05-11 | 2022-11-11 | 邱瑞光 | New energy accumulator |
Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050031937A1 (en) * | 1999-05-26 | 2005-02-10 | Hiroyuki Akashi | Solid electrolyte battery |
| JP2006156002A (en) * | 2004-11-26 | 2006-06-15 | Nissan Motor Co Ltd | Solid electrolyte battery |
| WO2006114993A1 (en) * | 2005-04-22 | 2006-11-02 | Nec Corporation | Electrode laminate and electric device |
| CN1925203A (en) * | 2005-08-31 | 2007-03-07 | 株式会社小原 | Lithium ion secondary battery and solid electrolyte therefor |
| CN101162650A (en) * | 2007-05-29 | 2008-04-16 | 中南大学 | Flexible thin film type solid-state super capacitor and its manufacture process |
| CN201766131U (en) * | 2010-08-23 | 2011-03-16 | 江苏益茂纯电动汽车有限公司 | Lithium-ion power battery cell |
| CN201904409U (en) * | 2010-10-29 | 2011-07-20 | 上海卡能迪蓄能科技有限公司 | Restorable large lithium-ion secondary battery |
| CN202025826U (en) * | 2011-04-07 | 2011-11-02 | 昆山金鼎新能源科技有限公司 | Storage battery |
| CN102347462A (en) * | 2010-07-21 | 2012-02-08 | 三洋电机株式会社 | Nonaqueous secondary battery and nonaqueous secondary battery pack |
| CN202352751U (en) * | 2011-12-07 | 2012-07-25 | 深圳市赛科龙电源科技有限公司 | High-stability battery |
| CN102723539A (en) * | 2012-05-04 | 2012-10-10 | 赵军辉 | Lithium-oxygen battery capable of improving battery energy density and method for manufacturing lithium-oxygen battery |
| CN102769149A (en) * | 2012-07-02 | 2012-11-07 | 深圳市海太阳实业有限公司 | Preparation method of polymer lithium ion battery and polymer lithium ion battery |
| CN103730684A (en) * | 2014-01-15 | 2014-04-16 | 广东亿纬赛恩斯新能源系统有限公司 | High-safety all-solid-state lithium ion battery and production method thereof |
| CN104241614A (en) * | 2013-06-19 | 2014-12-24 | 量子世界公司 | Protective coatings for conversion material cathodes |
| CN104253283A (en) * | 2013-06-28 | 2014-12-31 | 苏州宝时得电动工具有限公司 | Battery |
| US20160308243A1 (en) * | 2013-04-23 | 2016-10-20 | Applied Materials, Inc. | Electrochemical cell with solid and liquid electrolytes |
| CN106058323A (en) * | 2016-07-27 | 2016-10-26 | 付逸聪 | Lithium ion battery pack |
| CN207009576U (en) * | 2017-07-02 | 2018-02-13 | 东莞市宝博电子有限公司 | A kind of Miniature lithium cell |
| CN207993953U (en) * | 2018-02-02 | 2018-10-19 | 惠州拓邦电气技术有限公司 | A kind of full lug type lithium battery of high magnification |
| CN109155442A (en) * | 2016-05-27 | 2019-01-04 | 松下电器产业株式会社 | Secondary cell |
| CN109860951A (en) * | 2019-03-05 | 2019-06-07 | 苏州阿福机器人有限公司 | Cell structure of a power storage device with efficient heat dissipation |
-
2019
- 2019-07-02 CN CN201910589251.0A patent/CN112259776B/en active Active
Patent Citations (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050031937A1 (en) * | 1999-05-26 | 2005-02-10 | Hiroyuki Akashi | Solid electrolyte battery |
| JP2006156002A (en) * | 2004-11-26 | 2006-06-15 | Nissan Motor Co Ltd | Solid electrolyte battery |
| WO2006114993A1 (en) * | 2005-04-22 | 2006-11-02 | Nec Corporation | Electrode laminate and electric device |
| CN1925203A (en) * | 2005-08-31 | 2007-03-07 | 株式会社小原 | Lithium ion secondary battery and solid electrolyte therefor |
| CN101162650A (en) * | 2007-05-29 | 2008-04-16 | 中南大学 | Flexible thin film type solid-state super capacitor and its manufacture process |
| CN102347462A (en) * | 2010-07-21 | 2012-02-08 | 三洋电机株式会社 | Nonaqueous secondary battery and nonaqueous secondary battery pack |
| CN201766131U (en) * | 2010-08-23 | 2011-03-16 | 江苏益茂纯电动汽车有限公司 | Lithium-ion power battery cell |
| CN201904409U (en) * | 2010-10-29 | 2011-07-20 | 上海卡能迪蓄能科技有限公司 | Restorable large lithium-ion secondary battery |
| CN202025826U (en) * | 2011-04-07 | 2011-11-02 | 昆山金鼎新能源科技有限公司 | Storage battery |
| CN202352751U (en) * | 2011-12-07 | 2012-07-25 | 深圳市赛科龙电源科技有限公司 | High-stability battery |
| CN102723539A (en) * | 2012-05-04 | 2012-10-10 | 赵军辉 | Lithium-oxygen battery capable of improving battery energy density and method for manufacturing lithium-oxygen battery |
| CN102769149A (en) * | 2012-07-02 | 2012-11-07 | 深圳市海太阳实业有限公司 | Preparation method of polymer lithium ion battery and polymer lithium ion battery |
| US20160308243A1 (en) * | 2013-04-23 | 2016-10-20 | Applied Materials, Inc. | Electrochemical cell with solid and liquid electrolytes |
| CN104241614A (en) * | 2013-06-19 | 2014-12-24 | 量子世界公司 | Protective coatings for conversion material cathodes |
| CN104253283A (en) * | 2013-06-28 | 2014-12-31 | 苏州宝时得电动工具有限公司 | Battery |
| CN103730684A (en) * | 2014-01-15 | 2014-04-16 | 广东亿纬赛恩斯新能源系统有限公司 | High-safety all-solid-state lithium ion battery and production method thereof |
| CN109155442A (en) * | 2016-05-27 | 2019-01-04 | 松下电器产业株式会社 | Secondary cell |
| CN106058323A (en) * | 2016-07-27 | 2016-10-26 | 付逸聪 | Lithium ion battery pack |
| CN207009576U (en) * | 2017-07-02 | 2018-02-13 | 东莞市宝博电子有限公司 | A kind of Miniature lithium cell |
| CN207993953U (en) * | 2018-02-02 | 2018-10-19 | 惠州拓邦电气技术有限公司 | A kind of full lug type lithium battery of high magnification |
| CN109860951A (en) * | 2019-03-05 | 2019-06-07 | 苏州阿福机器人有限公司 | Cell structure of a power storage device with efficient heat dissipation |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115332602A (en) * | 2021-05-11 | 2022-11-11 | 邱瑞光 | New energy accumulator |
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|---|---|
| CN112259776B (en) | 2022-02-22 |
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