CN205406622U - Battery module - Google Patents
Battery module Download PDFInfo
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- CN205406622U CN205406622U CN201620189236.9U CN201620189236U CN205406622U CN 205406622 U CN205406622 U CN 205406622U CN 201620189236 U CN201620189236 U CN 201620189236U CN 205406622 U CN205406622 U CN 205406622U
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- total output
- output stage
- flexible coupling
- battery modules
- sheet
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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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Abstract
The utility model provides a battery module, include: a plurality of battery cell stack gradually in order to form the group battery along piling up the direction, and each battery cell has the opposite pole post, hard total output utmost point base plate, fixed electricity connect in the utmost point post as total output battery cell extremely among the battery module, total output utmost point electrode slice, fixed electricity are connected in hard total output utmost point base plate, a plurality of flexible coupling pieces for in battery module other utmost point posts except the utmost point post as the total output utmost point of a plurality of battery cell are established ties or are together parallelly connected, and a flexible coupling piece is connected with the fixed electricity of hard total output utmost point base plate. In the basis the utility model discloses an among the battery module, the hardness of hard total output utmost point base plate is great, and the hard total output utmost point base plate of assurance reaches with total output utmost point electrode slice the joint strength of a flexible coupling piece, simultaneously, battery module can be avoided to the flexibility of flexible coupling piece, and to connect the atress at position impaired for the electricity that causes because of the charge -discharge is expanded, improves battery module's reliability.
Description
Technical field
This utility model relates to battery technology field, particularly relates to a kind of battery modules.
Background technology
Along with the proposition of the relevant new forms of energy laws and regulations of country, the development of new-energy automobile is to alleviate the energy and ambient pressure, promotes the Important Action of automobile industry sustainable development.New-energy automobile includes pure electric automobile, plug-in hybrid-power automobile, hybrid vehicle etc..Wherein pure electric automobile is the automobile being provided power source completely by battery, little with its environmental pollution, and the advantage of course continuation mileage length, has good prospect.
Pure electric automobile is due to the more electricity of demand, and voltage needs to mate with motor, therefore typically requires and carry out parallel connection between battery, while improving battery bag energy, does not improve the voltage of battery bag.
The pole of most electrokinetic cell is aluminum alloy materials in the market, in order to realize the connection in series-parallel between battery, generally adopts the connection strap being all aluminum alloy materials that battery is carried out connection in series-parallel.The output stage of battery modules, it is contemplated that the electrical connection of connection between module or module and the internal miscellaneous part of battery bag, generally adopts the copper product that electric conductivity is more excellent.Therefore, there iing the module internal of cell parallel, it is necessary to carry out the connection of copper output stage and aluminum connection strap and the connection between the output stage assembly and the battery that form after this connection, it is necessary to a kind of good connected mode ensures the reliability that both connect.
The mode of the output stage of the battery modules of existing parallel connection has multiple, one of which is to adopt the copper electrode sheet of the length that can cover multiple battery core, in the position of corresponding multiple battery core poles on copper electrode sheet, welds multiple aluminium base, weld with battery electrode column again through aluminium base, it is achieved the parallel connection of battery.In this mode, multiple aluminium bases are complicated with copper electrode sheet welding procedure, and reliability needs assessment, and copper electrode leaf length size is big, and cost is high, and the hardness of copper is higher, ensures being reliably connected between multiple battery cores of parallel connection without enough flexibilities.
Another way is to adopt shorter copper electrode sheet, the aluminium base covering multiple battery cores with size welds, and in this mode, due to aluminium base and copper electrode sheet is two kinds of materials, generally adopting ultrasonic bonding, therefore aluminium base is that duralumin is reliable to ensure ultrasonic bonding.But hard aluminium base is difficult to ensure that between multiple battery cores in parallel, and welding is reliable.
Utility model content
In view of Problems existing in background technology, the purpose of this utility model is in that to provide a kind of battery modules, and it can guarantee that the electrical connection intensity between electrical connection intensity and the pole of output stage electrode slice.
To achieve these goals, this utility model provides a kind of battery modules, comprising: multiple cell, stacks gradually to be formed set of cells along stacking direction, and each cell has opposite polarity pole；Hard total output stage substrate, the pole of the fixing cell as total output stage being electrically connected in described battery modules；Total output stage electrode slice, fixes and is electrically connected to hard total output stage substrate；Multiple sheets that are flexible coupling, are used for using other the pole serial or parallel connection except the pole as total output stage of the plurality of cell in battery modules together, and the sheet that is flexible coupling is fixed with hard total output stage substrate and electrically connected.
The beneficial effects of the utility model are as follows:
According in battery modules of the present utility model, the hardness of hard total output stage substrate is bigger, it is ensured that hard total output stage substrate and total output stage electrode slice and one are flexible coupling the bonding strength of sheet；Meanwhile, the flexibility of the plurality of sheet that is flexible coupling, it can be avoided that the battery modules stress that expands the electrical joint caused because of discharge and recharge is impaired, improves the reliability of battery modules.
Accompanying drawing explanation
Fig. 1 is the axonometric chart of the embodiment according to battery modules of the present utility model；
Fig. 2 is the axonometric chart of another embodiment according to battery modules of the present utility model；
Fig. 3 is the decomposed figure according to battery modules of the present utility model；
Fig. 4 is the connection diagram according to hard total output stage substrate of battery modules of the present utility model, total output stage electrode slice and the sheet that is flexible coupling.
Wherein, description of reference numerals is as follows:
1 cell 4 is flexible coupling sheet
11 pole 41 planar sections
2 hard total output stage substrate 42 arcuate segment
3 total output stage electrode slices 43 connect outer section
Detailed description of the invention
Describe battery modules of the present utility model with reference to the accompanying drawings in detail.
Referring to figs. 1 through Fig. 4, according to battery modules of the present utility model, including: multiple cells 1, stack gradually to be formed set of cells along stacking direction D, each cell 1 has opposite polarity pole 11；Hard total output stage substrate 2, the pole 11 of the fixing cell 1 as total output stage being electrically connected in described battery modules；Total output stage electrode slice 3, fixes and is electrically connected to hard total output stage substrate 2；Multiple sheets 4 that are flexible coupling, are used for using pole 11 serial or parallel connection except other except the pole 11 of total output stage of the plurality of cell 1 in battery modules together, and the sheet 4 that is flexible coupling is fixed with hard total output stage substrate 2 and electrically connected.
According in battery modules of the present utility model, the hardness of hard total output stage substrate 2 is bigger, ensure hard total output stage substrate 2 and total output stage electrode slice 3 and one be flexible coupling sheet 4 bonding strength (generally, hard total output stage substrate 2 is different with the material of total output stage electrode slice 3, so the high rigidity of hard total output stage substrate 2 ensure that the bonding strength of hard total output stage substrate 2 and total output stage electrode slice 3)；Meanwhile, the flexibility of the plurality of sheet 4 that is flexible coupling, it can be avoided that the battery modules stress that expands the electrical joint caused because of discharge and recharge is impaired, improves the reliability of battery modules.
According in battery modules of the present utility model, referring to figs. 1 through Fig. 4, in one embodiment, the sheet 4 that is respectively flexible coupling has: at least one planar section 41, electrically connects with the pole 11 of corresponding cell 1；At least one arcuate segment 42, it is possible to elastic deformation, and the adjacent planar section 41 in each arcuate segment 42 at least side.Wherein, the plurality of that be flexible coupling in the sheet 4 and hard total fixing sheet 4 that is flexible coupling electrically connect of output stage substrate 2 has and connects outer section 43, connects outer section 43 to fix with firmly always output stage substrate 2 and electrically connects.Arcuate segment 42 is because of can elastic deformation, it can be avoided that the stress that battery modules expands the electrical joint caused because of discharge and recharge is impaired, improve the reliability of battery modules, meanwhile, cell 1 each in battery modules difference on thickness is had good adaptability and regulating power.
According in battery modules of the present utility model, in one embodiment, hard total output stage substrate 2 is duralumin plate.
According in battery modules of the present utility model, in one embodiment, total output stage electrode slice 3 is copper sheet.
According in battery modules of the present utility model, in one embodiment, the sheet 4 that is flexible coupling is for soft aluminium flake.
According in battery modules of the present utility model, in one embodiment, total output stage electrode slice 3 is fixed on hard total output stage substrate 2 by ultrasonic bonding.Because hard total output stage substrate 2 and total output stage electrode slice 3 are made up of different materials (duralumin plate and copper sheet), so adopting the mode of ultrasonic bonding to realize both welding.
According in battery modules of the present utility model, in one embodiment, one the connecing outer section 43 of sheet 4 that be flexible coupling is fixed on hard total output stage substrate 2 by laser penetration welding.Because hard total output stage substrate 2 and the sheet 4 that is flexible coupling are made up of same material (duralumin plate and soft aluminium flake), so adopting laser penetration welding hard total output stage substrate 2 and the sheet 4 that is flexible coupling to be fused together, it is achieved both welding.
According in battery modules of the present utility model, with reference to Fig. 3, in one embodiment, the be flexible coupling bottom connecing outer section 43 of sheet 4 of one is overlapped on hard total output stage substrate 2.
According in battery modules of the present utility model, with reference to Fig. 4, in one embodiment, the be flexible coupling side connecing outer section 43 of sheet 4 of one is docked on hard total output stage substrate 2.Owing to the side connecing outer section 43 of the sheet 4 that is flexible coupling directly is docked on hard total output stage substrate 2, so the sheet 4 that is flexible coupling is little with the height that hard total output stage substrate 2 takies, save the space within battery modules.
According in battery modules of the present utility model, referring to figs. 1 through Fig. 4, in one embodiment, the be flexible coupling bearing of trend of arcuate segment 42 of sheet 4 of one is parallel to the stacking direction D of the plurality of cell 1.
According in battery modules of the present utility model, in one embodiment, the sheet 4 that is flexible coupling is the laminated aluminium foil welded together, and the laminated aluminium foil forming the arcuate segment 42 of the sheet 4 that is flexible coupling does not weld together.Owing to the laminated aluminium foil of arcuate segment 42 does not weld, so the flexibility of arcuate segment 42 both sides can make up the difference in height of adjacent two cells 1, and then realize being reliably connected of two cells 1.
According in battery modules of the present utility model, in one embodiment, hard total output stage substrate 2 is welded on pole corresponding to polarity 11
According in battery modules of the present utility model, in one embodiment, total output stage includes total positive output pole and total negative output pole, hard total output stage substrate 2, total output stage electrode slice 3 and one be flexible coupling sheet 4 and total positive output pole and always negative output extremely at least one mate setting.Specifically, hard total output stage substrate 2, total output stage electrode slice 3 and the one sheet 4 that is flexible coupling only mate, with total positive output pole of battery modules, settings, and namely always output stage substrate 2 is only fixed with the pole 11 of the cell 1 as total positive output pole and electrically connected；Or, hard total output stage substrate 2, total output stage electrode slice 3 and the one sheet 4 that is flexible coupling only mate, with total negative output pole of battery modules, settings, and namely always output stage substrate 2 is only fixed with the pole 11 of the cell 1 as total negative output pole and electrically connected；Or, total output stage substrate 2, total output stage electrode slice 3 and the one sheet 4 that is flexible coupling is two groups, one group mates setting with total positive output pole of battery modules, another group mates setting with total negative output pole of battery modules, namely a total output stage substrate 2 is fixed with the pole 11 of the cell 1 as total positive output pole and is electrically connected, and another total output stage substrate 2 is fixing with the pole 11 of the cell 1 as total negative output pole to be electrically connected.
Claims (10)
1. a battery modules, including:
Multiple cells (1), stack gradually to be formed set of cells along stacking direction (D), and each cell (1) has opposite polarity pole (11)；
Hard total output stage substrate (2), the pole (11) of the fixing cell as total output stage (1) being electrically connected in described battery modules；And
Total output stage electrode slice (3), fixes and is electrically connected to hard total output stage substrate (2)；
It is characterized in that,
Described battery modules also includes:
Multiple sheets that are flexible coupling (4), for using the plurality of cell (1) in battery modules except other pole (11) serial or parallel connection except the pole (11) of total output stage together, and sheet that is flexible coupling (4) is fixing with hard total output stage substrate (2) electrically connects.
2. battery modules according to claim 1, it is characterised in that the sheet (4) that is respectively flexible coupling has:
At least one planar section (41), electrically connects with the pole (11) of corresponding cell (1)；And
At least one arcuate segment (42), it is possible to elastic deformation, and the adjacent planar section (41) in each arcuate segment (42) at least side；
Wherein, having with the hard fixing sheet that is flexible coupling (4) electrically connected of total output stage substrate (2) in the plurality of sheet that is flexible coupling (4) connects outer section (43), connects outer section (43) and electrically connects with firmly always output stage substrate (2) is fixing.
3. battery modules according to claim 1, it is characterised in that total output stage electrode slice (3) is fixed on hard total output stage substrate (2) by ultrasonic bonding.
4. battery modules according to claim 2, it is characterised in that one the connecing of sheet (4) outer section (43) that be flexible coupling is fixed on hard total output stage substrate (2) by laser penetration welding.
5. battery modules according to claim 2, it is characterised in that the be flexible coupling bottom connecing outer section (43) of sheet (4) of one is overlapped on hard total output stage substrate (2).
6. battery modules according to claim 2, it is characterised in that the be flexible coupling side connecing outer section (43) of sheet (4) of one is docked on hard total output stage substrate (2).
7. battery modules according to claim 2, it is characterised in that the be flexible coupling bearing of trend of arcuate segment (42) of sheet (4) of one is parallel to the stacking direction (D) of the plurality of cell (1).
8. battery modules according to claim 1, it is characterised in that the sheet that is flexible coupling (4) is the laminated aluminium foil welded together, and the laminated aluminium foil of arcuate segment (42) forming sheet (4) that are flexible coupling do not weld together.
9. battery modules according to claim 1, it is characterised in that hard total output stage substrate (2) is welded in pole corresponding to polarity (11).
10. battery modules according to claim 1, it is characterized in that, total output stage includes total positive output pole and total negative output pole, hard total output stage substrate (2), total output stage electrode slice (3) and one be flexible coupling sheet (4) and total positive output pole and total negative output extremely at least one mate setting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620189236.9U CN205406622U (en) | 2016-03-11 | 2016-03-11 | Battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620189236.9U CN205406622U (en) | 2016-03-11 | 2016-03-11 | Battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205406622U true CN205406622U (en) | 2016-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620189236.9U Active CN205406622U (en) | 2016-03-11 | 2016-03-11 | Battery module |
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| CN (1) | CN205406622U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107403900A (en) * | 2017-09-13 | 2017-11-28 | 杭州韦孚智能科技有限公司 | Hard soft composite conducting contiguous block |
| CN108054332A (en) * | 2017-11-23 | 2018-05-18 | 江西安驰新能源科技有限公司 | A kind of duralumin pole piece and battery modules |
| CN108767184A (en) * | 2018-06-14 | 2018-11-06 | 湖南湖大艾盛汽车技术开发有限公司 | The connection structure in groups of efficient stable between a kind of power battery module |
| CN110168776A (en) * | 2017-09-29 | 2019-08-23 | 株式会社Lg化学 | Battery module |
-
2016
- 2016-03-11 CN CN201620189236.9U patent/CN205406622U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107403900A (en) * | 2017-09-13 | 2017-11-28 | 杭州韦孚智能科技有限公司 | Hard soft composite conducting contiguous block |
| CN110168776A (en) * | 2017-09-29 | 2019-08-23 | 株式会社Lg化学 | Battery module |
| CN110168776B (en) * | 2017-09-29 | 2022-03-15 | 株式会社Lg化学 | Battery module |
| CN108054332A (en) * | 2017-11-23 | 2018-05-18 | 江西安驰新能源科技有限公司 | A kind of duralumin pole piece and battery modules |
| CN108767184A (en) * | 2018-06-14 | 2018-11-06 | 湖南湖大艾盛汽车技术开发有限公司 | The connection structure in groups of efficient stable between a kind of power battery module |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |