CN104183863B - Soft-packing lithium ion battery module - Google Patents
Soft-packing lithium ion battery module Download PDFInfo
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- CN104183863B CN104183863B CN201410386683.9A CN201410386683A CN104183863B CN 104183863 B CN104183863 B CN 104183863B CN 201410386683 A CN201410386683 A CN 201410386683A CN 104183863 B CN104183863 B CN 104183863B
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- soft bag
- lithium ionic
- ionic cell
- groove
- bag lithium
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- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 title abstract description 22
- 229910001416 lithium ion Inorganic materials 0.000 title abstract description 22
- 238000012856 packing Methods 0.000 title abstract 13
- 238000009826 distribution Methods 0.000 claims abstract description 5
- 230000017525 heat dissipation Effects 0.000 claims abstract description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 95
- 229910052744 lithium Inorganic materials 0.000 claims description 95
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 239000007769 metal material Substances 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229920006351 engineering plastic Polymers 0.000 claims description 3
- 239000004677 Nylon Substances 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000002131 composite material Substances 0.000 claims description 2
- 239000011152 fibreglass Substances 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229920001778 nylon Polymers 0.000 claims description 2
- 239000004800 polyvinyl chloride Substances 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 238000005266 casting Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 description 5
- 230000005611 electricity Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910018095 Ni-MH Inorganic materials 0.000 description 2
- 229910018477 Ni—MH Inorganic materials 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention relates to a soft-packing lithium ion battery module. The soft-packing lithium ion battery module comprises soft-packing lithium ion battery layer units, a bottom plate, an upper cover and fastening bolts, wherein each soft-packing lithium ion battery layer unit comprises a soft-packing lithium ion battery, a frame and a heat dissipating plate, the frame is of a rectangular structure and is composed of at least one rectangular cavity, the heat dissipating plate is provided with pits of which the quantity and the shape are the same as those of each rectangular cavity of the frame, the heat dissipating plate is clamped in the frame, the pits in the heat dissipating plate are sunk into each rectangular cavity of the frame, and each soft-packing lithium ion battery is arranged in a pit of the heat dissipating plate to form a soft-packing lithium ion battery layer unit integrally; at least two soft-packing lithium ion battery layer units are overlaid in the thickness direction and are fixed between the bottom plate and the upper cover by the fastening bolt to form the soft-packing lithium ion battery module; one surface of each battery is clung to the heat dissipating plate, so that the heat dissipation is convenient, a heat dissipating air channel is distributed on the frame to enhance the heat dissipating function; each soft-packing lithium ion battery layer unit can be expanded transversely, a plurality of layers of soft-packing lithium ion battery layer units also can be overlaid to realize expansion in the thickness direction, so that the distribution is convenient; and the soft-packing lithium ion battery module has the characteristics of compact structure and high energy density.
Description
Technical field
The present invention relates to a kind of lithium ionic cell module, particularly relate to a kind of soft bag lithium ionic cell module.Belong to Soft Roll lithium from
Sub-battery preparation technology field.
Background technology
Develop energy-conservation and new-energy automobile and have become as the inevitable choice of China's energy strategy, according to development plan, current it is important that
Advance pure electric automobile and plug-in hybrid-power automobile industrialization.In China, frequently with lead-acid battery conduct before electric automobile
Electrokinetic cell, but lead-acid battery energy density is low, and environment can be negatively affected so that replacement must separately be looked for by producer；
Frequently with Ni-MH battery before hybrid vehicle, but Ni-MH battery energy density is on the low side, is not suitable for plug-in mixing and moves
Power automobile.Lithium ion battery, because having higher energy density, becomes the head of pure electric automobile and plug-in hybrid-power automobile
Choosing.
The production history of China's lithium ion battery is the shortest, but the soft bag lithium ionic cell that production is specifically designed to electric automobile is then
The most just start.Battery cell firstly the need of utilizing modular technology, is combined by soft bag lithium ionic cell for electric automobile
Become suitable module, be then assembled into battery case.But lithium-ion-power cell is when electric automobile upper mold massing is applied, due to
The impact of the factors such as connected mode, concordance, ambient temperature difference, the parameter such as power battery module specific energy, specific power reaches not
To single level, service life, relatively cell shortened, and causes system operation and maintenance cost to increase, becomes restriction electric vehicle
One of bottleneck problem of industrialized development and application.Improve the life-span of electric powered motor power supply except improving in addition to battery self-technique,
Also to launch research from battery integrated approach or modular structure, make the battery module life-span close to or up battery cell level, this
Have become as the common recognition of electric automobile industry.
When soft bag lithium ionic cell constitutes module, monomer mainly has following several scheme in spatiality.Scheme one is upright, should
Scheme is easy to assemble and connect, and General Motors VOLT i.e. have employed this scheme；Scheme two is edge-on, and the program in height takies
Space is little, it is simple to arranging, LG Corp of South Korea have employed this scheme；Scheme three is to lie low, and the program is to service life of battery
Favorably, but install and be connected, can make troubles.
Such as, patent documentation CN103168387A discloses a kind of set of cells for electric vehicle.
The battery cell of this set of cells uses upright scheme, has the intermediate board body of electric insulation and heat conduction between monomer.Intermediate board body one
Directly extend to battery bottom, be provided with heat-conducting layer in bottom, below heat-conducting layer, have heat dissipating layer.The heat that battery produces is by centre
Plate body and heat-conducting layer, distribute heat at heat dissipating layer.The radiator structure of the program is the most more complicated, and manufacturing cost is higher,
The most upright scheme is unfavorable to the service life of battery.
A kind of simple in construction of market in urgent need, be prone to extension, battery can be played again the module side of fine protective effect by convenient maintenance
Case.
Summary of the invention
Present invention aim to overcome the deficiency of existing soft bag lithium ionic cell module, it is provided that a kind of simple in construction, be prone to expand
Exhibition, the soft bag lithium ionic cell module of convenient maintenance, improve the service life of lithium ion battery of electric automobile group.
One soft bag lithium ionic cell module of the present invention, described module include soft bag lithium ionic cell layer unit, base plate, upper cover,
Fastening bolt；Described soft bag lithium ionic cell layer unit includes that soft bag lithium ionic cell, framework, heat sink, described framework are square
Shape structure, is made up of at least one rectangular cavities, and described heat sink is provided with the rectangular cavities quantity of shape and quantity and described framework
Identical pit, described heat sink is installed in described framework, and the pit on heat sink is absorbed in the rectangular cavities of framework；Described
Soft bag lithium ionic cell is arranged in the pit of described heat sink, is monolithically fabricated soft bag lithium ionic cell layer unit；Described heat sink
On be provided with bolt hole；
At least two soft bag lithium ionic cell layer unit through-thickness is stacked be installed on by fastening bolt be located at framework, base plate,
On in the bolt hole that covers, multiple soft bag lithium ionic cell layer unit are fixedly mounted between base plate and upper cover, constitute Soft Roll lithium
Ion battery module.
One soft bag lithium ionic cell module of the present invention, a limit of described framework is provided with the first groove, described Soft Roll lithium ion
Battery Card is contained in the pit of described heat sink, and battery pole ear extends to outside soft bag lithium ionic cell module through described first groove.
One soft bag lithium ionic cell module of the present invention, the limit being provided with the first groove in described framework is defined as the first limit, is perpendicular to
The limit on the first limit is defined as the second limit；Described first limit is provided with the second groove with the first limit upper surface of the second limit intersection, described
The axis of the second groove is parallel with the axis on the second limit；The degree of depth of described second groove is more than or equal to the 1/2 of the first limit height.
One soft bag lithium ionic cell module of the present invention, is provided with axis on described framework the first limit and is parallel to described frame plane
Boss, described boss is arranged on the centrage of each rectangular cavities；This boss on the one hand constitute between battery plus-negative plate every
From pier, prevent the generation of battery short circuit accident；On the other hand can also hole on boss, provide fastening condition for framework.
One soft bag lithium ionic cell module of the present invention, described framework is cast by insulant and makes, and described insulant is selected from work
One in engineering plastics, fiberglass, PVC composite, nylon.
One soft bag lithium ionic cell module of the present invention, pit both side ends that described heat sink is arranged is each extended has a draw-in groove,
The cross section of described draw-in groove is rectangular, bottom surface opening, and the opening direction of described draw-in groove is contrary with the opening direction of described pit, when
When described heat sink is installed in described framework, the second checkpost of framework is contained in described draw-in groove, the card that described heat sink is arranged
The space formed between groove and the second limit of described framework and the second groove being arranged on described framework the first limit collectively form institute
State the heat dissipation channel of soft bag lithium ionic cell module.
One soft bag lithium ionic cell module of the present invention, described heat sink is selected from by metal material punch forming, described metal material
Aluminum, copper, a kind of metal of zinc or its alloy.
One soft bag lithium ionic cell module of the present invention, is connected by conducting strip between described soft bag lithium ionic cell, it is achieved in parallel
Or series connection.
One soft bag lithium ionic cell module of the present invention, described conducting strip is divided into end conducting strip and middle conducting strip.
One soft bag lithium ionic cell module of the present invention, described middle conducting strip is rectangle, which is provided with along rectangle axis pair
Claiming two group leader's bar shaped grooves of distribution, this strip groove is used as lug via.
One soft bag lithium ionic cell module of the present invention, described end conducting strip is rectangle, uniform along rectangular length direction
There is strip groove；The quantity of the strip groove arranged on the conducting strip of described end and the strip of setting on described middle conducting strip
Shape groove quantity is identical；Or
The quantity of the strip groove arranged on the conducting strip of described end is the strip groove quantity arranged on described middle conducting strip
1/2.
The width of each the strip groove on one soft bag lithium ionic cell module of the present invention, end conducting strip or middle conducting strip
The degree described soft bag lithium ionic cell big 0.5-1mm of lug thickness of ratio, the spacing between neighboring strips shape groove be described Soft Roll lithium from
The thickness of sub-battery and fin thickness sum.
One soft bag lithium ionic cell module of the present invention, according to the quantity of soft bag lithium ionic cell layer unit in same layer, at described frame
The frame boss of arranging equal number corresponding with on base plate, the two poles of the earth of isolation battery, prevent battery short circuit, simultaneously can be on boss
The compression that boring is soft bag lithium ionic cell module provides securing member installation site.
The present invention uses said structure, compared with prior art, has the advantage that
1, the space using the rectangular cavities of the pit on heat sink and framework to constitute houses soft-package battery, and heat sink and framework are to soft
Bag lithium ion battery plays a good protection, and is conducive to extending the service life of battery, and soft-package battery is located in the module
In the state lain low, promote the service life of soft-package battery further.
2, the space using the rectangular cavities of the pit on heat sink and framework to constitute houses the table of soft-package battery, heat sink and battery
Face realizes laminating, it is simple to heat radiation；Combine closely between soft bag lithium ionic cell layer unit, make battery modular structure compact,
Specific energy is high, can reach 120Wh/Kg.
3, using the structure of heat sink Integration Framework, the extensibility making battery module is good, can be according to the requirement used to layer list
The number of plies of unit's battery number and module layer unit adjusts neatly, it is simple to arrange, having compact conformation, energy is close
Spend high advantage.
4, use the structure of heat sink Integration Framework, define cooling air channel in soft bag lithium ionic cell both sides, make module have good
Good heat sinking function, be effectively improved service life of soft bag lithium ionic cell and the stability of soft package battery module work and
Reliability.
5, use the attachment structure that end conducting strip combines with middle conducting strip, the connection of conducting strip and lug reliably, battery it
Between can realize series and parallel easily and connect and meet the battery module of requirement constituting the parameter such as voltage, capacity；And connect
Based on lateral connection, changeing battery and offer convenience when giving maintenance, meanwhile, conducting strip section loss is little, it is possible to decrease lead
Electricity sheet thickness.
6, the axis arranged on framework the first limit is parallel to the boss of described frame plane, is separated at the two poles of the earth of battery cell, reduces
Assembling, connect, occur when keeping in repair the possibility of short circuit.
In sum, a kind of soft bag lithium ionic cell module that the present invention provides, there is compact conformation, easy to maintenance, extension is held
Easily；Battery can either be played a good protection, achieve electrical connection the most well；Both the isolation of monomer had been realized, again
Reach the requirement of heat radiation.Electric automobile lithium battery group is increased the service life and improves energy density and there is obvious action.Be suitable to
Industrialized production.
Accompanying drawing explanation
Accompanying drawing 1 is the soft bag lithium ionic cell layer unit structural blast figure that four soft bag lithium ionic cell monomers of the present invention are constituted；
Accompanying drawing 2 is the soft bag lithium ionic cell modular structure explosive view that in the present invention, 2 layers of soft bag lithium ionic cell layer unit is constituted；
Accompanying drawing 3 is the middle conductive connecting piece structural representation of the present invention；
Accompanying drawing 4 is a kind of end conductive connecting piece structural representation of the present invention；
Accompanying drawing 5 is the another kind of end conductive connecting piece structural representation of the present invention；
4 × 4 module electrical connection graphs that accompanying drawing 6 is constituted for the present invention；
Accompanying drawing 7 is that 4 × 20 soft bag lithium ionic cell layer unit of the embodiment of the present invention 2 preparation constitute 72V40Ah battery module
Electrical connection graph.
1-soft bag lithium ionic cell；2-heat sink；3-framework, 4-upper cover, 5-base plate；6-end conducting strip；Conduction in the middle of 7-
Sheet.
Detailed description of the invention
Below in conjunction with the accompanying drawings embodiments of the present invention are further described.
Embodiment 1
See accompanying drawing 1,2,3,4,5,6, one soft bag lithium ionic cell module of the present invention, described module include Soft Roll lithium from
Sub-battery layers unit, base plate 5, upper cover 4, fastening bolt；Described soft bag lithium ionic cell layer unit includes soft bag lithium ionic cell
1, framework 3, heat sink 2, described framework 3 is rectangular configuration, is made up of four rectangular cavities 17, and described heat sink 2 is provided with
Shape and the quantity pit identical with rectangular cavities 17 quantity of described framework 3, described heat sink 2 is installed in described framework 3,
Pit on heat sink 2 is absorbed in the rectangular cavities 17 of framework 3；Described soft bag lithium ionic cell 1 is arranged on described heat sink 2
Pit in, be monolithically fabricated soft bag lithium ionic cell layer unit；
Four soft bag lithium ionic cell layer unit through-thickness stacked by fastening bolt be fixedly mounted on base plate 5 and upper cover 4 it
Between, constitute soft bag lithium ionic cell module；
One limit of described framework 3 is provided with the first groove 8, and described soft bag lithium ionic cell 1 is installed on described heat sink 2
In pit, battery pole ear 9 extends to outside soft bag lithium ionic cell module through described first groove 8；
The limit being provided with the first groove 8 in described framework 3 is defined as the first limit 10, and the limit being perpendicular to the first limit 10 is defined as second
Limit 11；First limit 10 upper surface of described first limit 10 and the second limit 11 intersection is provided with the second groove 12, described second recessed
The axis of groove 12 is parallel with the axis on the second limit 11；
Being provided with axis on described first limit 10 and be parallel to the boss 13 of described framework 3 plane, described boss 13 is arranged at each
On the centrage of individual rectangular cavities 17；This boss 13 1 aspect constitutes the hard shoulder between soft bag lithium ionic cell 1 both positive and negative polarity,
Prevent the generation of battery short circuit accident；On the other hand can also hole on boss 13, provide fastening condition for framework 3；
The pit both side ends that arranges on described heat sink 2 is each extended has a draw-in groove 14, the cross section of described draw-in groove 14 is rectangular,
Bottom surface opening, the opening direction of described draw-in groove 14 is contrary with the opening direction of described pit, when described heat sink 2 is installed on described
Time in framework 3, the second limit 11 of framework 3 is installed in described draw-in groove 14, the draw-in groove 14 that described heat sink 2 is arranged and institute
State the space formed between the second limit 11 of framework 3 and the second groove 12 being arranged on described framework 3 first limit 10 is common
Constitute the heat dissipation channel of described soft bag lithium ionic cell module；
Connected by conducting strip between described soft bag lithium ionic cell 1, it is achieved in parallel or series；
Described conducting strip is divided into end conducting strip 6 and middle conducting strip 7；Described middle conducting strip 7 is rectangle, which is provided with
Along two group leader's bar shaped grooves 15 of rectangle axisymmetrical distribution, every group leader's bar shaped groove comprises 4 grooves, this groove 15
Via as lug 9；
Described end conducting strip 6 is rectangle, is evenly equipped with strip groove 16 along rectangular length direction；Described end is conducted electricity
The quantity of the strip groove 16 arranged on sheet 6 and group leader's bar shaped groove 15 quantity phase of setting on described middle conducting strip 7
With；
Soft bag lithium ionic cell lug described in the width ratio of each the strip groove on end conducting strip 6 or middle conducting strip 7
The 9 big 0.5-1mm of thickness, the spacing between neighboring strips shape groove is that the thickness of described soft bag lithium ionic cell 1 is thick with fin 2
Degree sum；
End conducting strip 6 and middle conducting strip 7,4 × 4 module is utilized to carry out four and four strings according to the connected mode shown in accompanying drawing 6
Connect and obtain 14.4V, 40Ah battery layers unit group 20 (4 × 4 module).
In the present embodiment, described framework 3 is made up of engineering plastics；Described heat sink is by aluminium sheet punch forming；
In the present embodiment, the limit parallel with framework 3 first limit 10 is provided with 2 boss, base plate, on cover correspondence position
Being provided with 2 boss, boss can be holed, fastening bolt passes the boring on boss by soft bag lithium ionic cell module pressing.
Embodiment 2
See accompanying drawing 7,4 × 20 module composition 72V40Ah soft bag lithium ionic cell modules prepared by the present invention；
The present embodiment 2 is with the difference of embodiment 1: the soft bag lithium ionic cell module of the present embodiment is by 20 layers of Soft Roll lithium ion
Battery layers unit constitute, each layer of soft bag lithium ionic cell layer unit has 4 pieces of soft bag lithium ionic cells, every four layers of Soft Roll lithium from
Sub-battery layers unit is by end conducting strip 6, middle conducting strip 7, it is achieved is connected in series, constitutes battery layers unit group, have 5
Individual layer unit group is stacked, and is realized series connection by end conducting strip 6a, finally constitute 72V40Ah Soft Roll lithium-ion electric between layer unit group
Pond module；
Described middle conducting strip 7 is rectangle, which is provided with two groups of grooves along the distribution of rectangle axisymmetrical, each group of groove
In have 4 strip grooves 15 being parallel to each other；
Described end conducting strip 6 is rectangle, is evenly equipped with strip groove 16 along rectangular length direction；
Described end conducting strip 6 is divided into end conducting strip 6a and end conducting strip 6, and end conducting strip 6 is for Soft Roll lithium-ion electric
The total positive pole of Chi or the connection of total negative pole, end conducting strip 6a is for connecting adjacent soft bag lithium ionic cell layer unit group；
In the present embodiment, in the quantity of the strip groove 16 that described end conducting strip 6a is arranged and described middle conducting strip 7
Strip groove 15 quantity arranged is identical；The quantity of strip groove 16 arranged on described end conducting strip 6 be described in
Between the half of strip groove 15 quantity that arranges on conducting strip 7.
Soft bag lithium ionic cell 1 described in the width ratio of each the strip groove on end conducting strip 6 or middle conducting strip 7
The big 0.5-1mm of lug thickness, the spacing between neighboring strips shape groove is thickness and the fin 2 of described soft bag lithium ionic cell 1
Thickness sum.
The operation principle of the present invention is briefly described as below:
Soft bag lithium ionic cell layer unit of the present invention can laterally be extended, it is also possible to Multi-stacking compaction realizes the extension of thickness direction.
Horizontal extension and the extension of the number of plies can be adjusted according to the needs of practical situation.Major consideration includes installation position
The space put limits；The Mechanical Structure Strength of module；The battery capacity requirement etc. to cell parallel quantity.
Middle conducting strip 7 is stamped to form by copper sheet, and this conducting strip left and right sides is respectively arranged with the strip of two 1 millimeter height and leads to
Groove, for through lug, the negative electrode lug of battery penetrates from groove, during welding lug can up or down turn down to conduction
Sheet contacts, and welds the most again；This middle conducting strip can be extended as required；The conducting strip of the present invention connects with horizontal stroke
Main to being connected as, when making conducting strip be energized, lug width is consistent with direction of current conduction, and conducting strip digs out through lug
Groove cause the loss of conducting strip maximum conduction cross-sectional area to be only the long-pending of cut height (1mm) and conducting strip thickness (0.5mm)
(about 0.5mm2), according to longitudinally connected scheme, be then that lug thickness direction is consistent with direction of current conduction, then maximum conduction horizontal stroke
The loss of sectional area will be for long-pending (the about 6mm of lug width (12mm) with conducting strip thickness2), the loss of conductive cross-sectional area increases
Add.In electrical connection scheme of the present invention, connecting of conducting strip is mainly the most horizontal connection, and the maximum conduction of conducting strip is transversal
Space wastage is minimum, and when choosing conducting strip, sectional area reduces, and reduces the consumption of copper material.
End conducting strip 6 is stamped to form by copper sheet, and this conducting strip is used for battery module being conductively connected in end；Can realize
Four anodes of left side parallel connection are together in parallel, or four battery cathode that the rightmost side is in parallel are together in parallel.This end is led
Electricity sheet can be extended as required, such as, to realize the N number of anode by the leftmost side is in parallel and be together in parallel, then should will lead
Electricity sheet upper-lower height adjusts, and is each side opening the strip groove of N number of 1 millimeter height, for through lug.
As a example by 3.6V, 10Ah battery cell, then need 16 batteries are carried out to obtain 14.4V, 40Ah battery module
Four and four series windings connect.During battery arrangement, positive and negative order is identical, four same polarity (being just assumed to be) lugs of leftmost side during connection
Parallel connection is welded on same end conducting strip 6.The negative pole of leftmost side battery is separated by the boss 13 of framework with positive pole, plays and keeps away
Exempt from the effect of short circuit.The negative pole of leftmost side battery and the positive pole of the second Battery pack from left to right are linked together reality by middle conducting strip 7
The series connection of existing two Battery packs.Being sequentially connected with, 4 × 4 modules can carry out four and four according to the connected mode shown in accompanying drawing 6 easily
Series winding connects and obtains 14.4V, 40Ah battery module.
End conducting strip 6a is stamped to form by copper sheet, the series connection between soft bag lithium ionic cell layer unit group, two connected
The lug order of polarity of individual battery layers unit its battery of group should be contrary.Every four layers of battery constitute layer unit group, and 20 layers of battery are constituted
5 layer unit groups, stacked after utilize conducting strip to couple together available 72V40Ah soft bag lithium ionic cell mould shown in Fig. 7
Block.In module, heat sink, top board, base plate constitute the constraint of vertical direction to battery, and battery is applied certain by the module assembled
Pressure.Battery bear certain pressure make battery in use will not vertical, horizontal displacement on occurred level face, keep away
Exempt from battery and frame to collide and the damage that causes.
Top board, base plate, battery may make up one layer.
Claims (8)
1. a soft bag lithium ionic cell module, described module includes soft bag lithium ionic cell layer unit, base plate, upper cover, fastening bolt；Described soft bag lithium ionic cell layer unit includes soft bag lithium ionic cell, framework, heat sink, described framework is rectangular configuration, it is made up of at least one rectangular cavities, described heat sink is provided with the pit that shape and quantity are identical with the rectangular cavities quantity of described framework, described heat sink is installed in described framework, and the pit on heat sink is absorbed in the rectangular cavities of framework；Described soft bag lithium ionic cell is arranged in the pit of described heat sink, is monolithically fabricated soft bag lithium ionic cell layer unit；
At least two soft bag lithium ionic cell layer unit through-thickness is stacked to be fixedly mounted between base plate and upper cover by fastening bolt, constitutes soft bag lithium ionic cell module；
One limit of described framework is provided with the first groove, and described soft bag lithium ionic cell is installed in the pit of described heat sink, and battery pole ear extends to outside soft bag lithium ionic cell module through described first groove；
The limit being provided with the first groove in described framework is defined as the first limit, and the limit being perpendicular to the first limit is defined as the second limit；Described first limit is provided with the second groove with the first limit upper surface of the second limit intersection, and the axis of described second groove is parallel with the axis on the second limit；The degree of depth of described second groove is more than or equal to the 1/2 of the first limit height.
A kind of soft bag lithium ionic cell module the most according to claim 1, it is characterised in that: being provided with axis on described framework the first limit and be parallel to the boss of described frame plane, described boss is arranged on the centrage of each rectangular cavities；On the one hand this boss constitutes the hard shoulder between battery plus-negative plate, prevents the generation of battery short circuit accident；On the other hand hole on boss, provide fastening condition for framework.
A kind of soft bag lithium ionic cell module the most according to claim 1, it is characterised in that: described framework is made up of insulant casting, described insulant one in engineering plastics, fiberglass, PVC composite, nylon.
A kind of soft bag lithium ionic cell module the most according to claim 1, it is characterised in that: described heat sink is by metal material punch forming, and described metal material is selected from aluminum, copper, a kind of metal of zinc or its alloy.
A kind of soft bag lithium ionic cell module the most according to claim 1, it is characterised in that: connected by conducting strip between described soft bag lithium ionic cell, it is achieved in parallel or series；Described conducting strip is divided into end conducting strip and middle conducting strip.
A kind of soft bag lithium ionic cell module the most according to claim 5, it is characterised in that: described middle conducting strip is rectangle, which is provided with two group leader's bar shaped grooves along the distribution of rectangle axisymmetrical, and this strip groove is used as lug via；
Described end conducting strip is rectangle, is evenly equipped with strip groove along rectangular length direction；
The quantity of the strip groove arranged on the conducting strip of described end is identical with the strip groove quantity arranged on described middle conducting strip；Or the quantity of the strip groove arranged on the conducting strip of described end is the 1/2 of the strip groove quantity arranged on described middle conducting strip.
A kind of soft bag lithium ionic cell module the most according to claim 6, it is characterized in that: the soft bag lithium ionic cell big 0.5-1mm of lug thickness described in the width ratio of each the strip groove on end conducting strip or middle conducting strip, the thickness that spacing is described soft bag lithium ionic cell between neighboring strips shape groove and fin thickness sum.
8. according to a kind of soft bag lithium ionic cell module described in claim 1-7 any one, it is characterized in that: the pit both side ends that arranges on heat sink is each extended has a draw-in groove, the cross section of described draw-in groove is rectangular, bottom surface opening, the opening direction of described draw-in groove is contrary with the opening direction of described pit, when described heat sink is installed in described framework, second checkpost of framework is contained in described draw-in groove, the space formed between the draw-in groove and the second limit of described framework that arrange on described heat sink and the second groove being arranged on described framework the first limit collectively form the heat dissipation channel of described soft bag lithium ionic cell module.
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| CN201410386683.9A CN104183863B (en) | 2014-08-07 | 2014-08-07 | Soft-packing lithium ion battery module |
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| CN201410386683.9A CN104183863B (en) | 2014-08-07 | 2014-08-07 | Soft-packing lithium ion battery module |
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| CN104183863B true CN104183863B (en) | 2017-01-11 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102384888B1 (en) * | 2015-06-03 | 2022-04-07 | 에스케이온 주식회사 | Lithium secondary battery and secondary battery sub module comprising the same |
| CN105118941B (en) * | 2015-08-13 | 2017-09-26 | 中航锂电（洛阳）有限公司 | A kind of battery module in groups |
| CN105390662B (en) * | 2015-11-23 | 2017-12-19 | 安徽恒利机电科技股份有限公司 | A kind of automobile batteries connects copper sheet production technology |
| CN105591174B (en) * | 2015-12-24 | 2018-04-06 | 中车唐山机车车辆有限公司 | The temperature control device of battery modules |
| CN105762310B (en) * | 2016-03-14 | 2018-03-16 | 湖南大学 | The lithium ionic cell module of the spliced layer unit framework of lithium ion battery and its composition |
| CN106450075A (en) * | 2016-04-12 | 2017-02-22 | 安徽欧鹏巴赫新能源科技有限公司 | Power battery module |
| CN107425154B (en) * | 2016-05-23 | 2024-01-16 | 宁德时代新能源科技股份有限公司 | battery module |
| DE102016118752A1 (en) | 2016-10-04 | 2018-04-05 | Johnson Controls Advanced Power Solutions Gmbh | ENERGY STORAGE MODULE AND METHOD FOR PRODUCING THEREOF |
| CN107154473B (en) * | 2017-05-18 | 2019-10-22 | 华霆（合肥）动力技术有限公司 | Battery module structure and battery pack |
| US10381617B2 (en) * | 2017-09-28 | 2019-08-13 | GM Global Technology Operations LLC | Polymeric battery frames and battery packs incorporating the same |
| DE102018221539A1 (en) * | 2018-12-12 | 2020-06-18 | Robert Bosch Gmbh | Battery module unit comprising at least two battery cells |
| KR20220160717A (en) * | 2021-05-28 | 2022-12-06 | 에스케이온 주식회사 | Battery module |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204118197U (en) * | 2014-08-07 | 2015-01-21 | 长丰集团有限责任公司 | A kind of soft bag lithium ionic cell module |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3972885B2 (en) * | 2003-10-10 | 2007-09-05 | 日産自動車株式会社 | Assembled battery |
| JP2007265945A (en) * | 2006-03-30 | 2007-10-11 | Tokyo R & D Co Ltd | Lamination cell accumulation type battery and battery module |
| WO2007121445A2 (en) * | 2006-04-18 | 2007-10-25 | Securaplane Technologies, Inc. | Battery busing scheme |
| JP4508221B2 (en) * | 2007-08-27 | 2010-07-21 | 豊田合成株式会社 | Battery assembly |
| DE102009011524A1 (en) * | 2009-03-03 | 2010-09-09 | Li-Tec Battery Gmbh | Electric energy storage cell and cell block, electric energy storage device and vehicle with it |
| US9147916B2 (en) * | 2010-04-17 | 2015-09-29 | Lg Chem, Ltd. | Battery cell assemblies |
| DE102010036686B4 (en) * | 2010-07-28 | 2020-05-28 | Intilion Gmbh | Device for receiving a galvanic element, energy storage unit and energy storage stack |
| JP5343048B2 (en) * | 2010-07-29 | 2013-11-13 | 日立ビークルエナジー株式会社 | Power storage module and power storage device |
| CN102064291B (en) * | 2010-12-14 | 2013-04-10 | 长丰集团有限责任公司 | Integrally-impacted stacking battery module |
| TWI420725B (en) * | 2011-07-18 | 2013-12-21 | Delta Electronics Inc | Battery device and battery device module |
| CN202633412U (en) * | 2012-05-14 | 2012-12-26 | 万向电动汽车有限公司 | Horizontal-type battery module adopting cascading battery core |
| US20150325818A1 (en) * | 2012-08-27 | 2015-11-12 | Nec Energy Devices, Ltd. | Power storage device |
| CN103887457B (en) * | 2012-12-21 | 2018-07-06 | 三星Sdi株式会社 | Battery |
| CN203150647U (en) * | 2013-03-05 | 2013-08-21 | 湖南丰源业翔晶科新能源股份有限公司 | Connection structure of pole lug of lithium ion battery pack |
-
2014
- 2014-08-07 CN CN201410386683.9A patent/CN104183863B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204118197U (en) * | 2014-08-07 | 2015-01-21 | 长丰集团有限责任公司 | A kind of soft bag lithium ionic cell module |
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