CN211828843U - Battery module - Google Patents
Battery module Download PDFInfo
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- CN211828843U CN211828843U CN202020478056.9U CN202020478056U CN211828843U CN 211828843 U CN211828843 U CN 211828843U CN 202020478056 U CN202020478056 U CN 202020478056U CN 211828843 U CN211828843 U CN 211828843U
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- connecting portion
- main body
- battery module
- body portion
- insulating
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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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- Connection Of Batteries Or Terminals (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a battery module, a serial communication port, including a plurality of monomer electricity cores, the monomer electricity core includes metal casing, top cap, monomer electricity core outside cladding has insulating diolame, insulating diolame has main part and connecting portion, the main part with the cladding of mutually supporting of connecting portion monomer electricity core. Through above-mentioned technical scheme, this openly junction that can effectively cladding single electric core's metal casing and top cap in the battery module can effectively improve the withstand voltage performance of electric core, improves the insulating coated film coated yield.
Description
Technical Field
The disclosure relates to the field of power battery manufacturing, in particular to a battery module.
Background
Among methods for insulating the case of a case power battery, a method for coating an insulating film on a battery cell is a common method. In the prior art, the envelope packaging of the lithium ion battery with the other shell is carried out by combining the envelope of the aluminum shell and the patch of the top cover, an insulating film and the patch of the top cover at the joint of the aluminum shell and the top cover have a linking process, and poor insulation and pressure resistance performance is easily caused by poor joint. The electric leakage condition is easy to occur after the electric cores are grouped. The influence on the safety of the product is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a battery module, this battery module can be with the place (the welding department of aluminium shell and electric core top cap) complete cladding that appears insulating bad easily, avoids in the past because of insulating film and the emergence of the withstand voltage problem of top cap insulating piece combination harmfully leading to, improves the yields of square shell electricity core insulating film cladding.
In order to realize the above-mentioned purpose, this disclosure provides a battery module, including a plurality of monomer electricity cores, the monomer electricity core includes metal casing, top cap, the cladding of monomer electricity core outside has insulating diolame, insulating diolame has main part and connecting portion, the main part with the cladding of mutually supporting of connecting portion monomer electricity core.
Optionally, the main body portion is of a flat plate type, the connecting portion includes a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are respectively disposed at two ends of the main body portion, and the connecting portion and the main body portion are equal in width.
Optionally, the main body portion is a bag shape, the connecting portion includes a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are respectively and correspondingly disposed on two corresponding long sides of the pocket of the main body portion, and the connecting portion and the main body portion have the same width.
Optionally, the connecting portion include connecting position and keep away the vacancy that the alternate distribution, first connecting portion with the second connecting portion pass through the connecting position is connected, keep away on the first connecting portion the vacancy with on the second connecting portion keep away the vacancy combination and form the through-hole.
Optionally, the monomer battery cell further comprises a pole column and an explosion-proof valve, and the pole column and the explosion-proof valve penetrate through the insulating envelope through the through hole.
Optionally, the width of the main body portion or the connecting portion is equal to or slightly greater than the width of the single battery cell.
Optionally, the length of the main body part is greater than or equal to the length of the expanded surface of the metal shell.
Optionally, the height of the main body part is slightly greater than the height of the single battery cell.
Optionally, the body portion and the connecting portion are integrally formed.
Optionally, a fixing adhesive layer is arranged on the inner side of the insulating envelope.
Through above-mentioned technical scheme, the technical scheme that this disclosure provided can effectively the junction of metal casing and top cap of monomer electricity core in the cladding battery module, through with the linking position of insulating diolame by the preceding contact replacement of metal casing with the top cap for the top cap center, can effectively improve the withstand voltage performance of electric core, improve the insulating diolame membrane cladding yield.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
FIG. 1 is a schematic diagram of one embodiment of the present disclosure.
Fig. 2 is a development view of an insulating film according to an embodiment of the present disclosure.
Fig. 3 is a schematic view of another embodiment of the present disclosure.
Description of the reference numerals
1 monomer electricity core 2 metal casing
3 Top cover 31 pole
32 explosion-proof valve 4 insulation coating
41 body part 42 connecting part
421 first connection part 422 second connection part
423 connect bit 424 escape bit
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
In the present disclosure, the use of directional terms such as "upper, lower, left, right" generally means "above", "below", "left", "right" based on a particular component referred to in the drawings, unless otherwise specified. "inner and outer" refer to "inner" and "outer" based on the particular components referred to in the drawings. "distal and proximal" refer to distances from a particular component illustrated in the drawings.
The utility model provides a battery module, including a plurality of monomer electricity core 1, monomer electricity core 1 includes metal casing 2 and top cap 3, 1 outside cladding of monomer electricity core has insulating diolame 4, 2 inside book cores and electrolyte of being provided with of metal casing, it is sealed in metal casing 2 through top cap 3, be provided with utmost point post 31 and explosion-proof valve 32 on the top cap 3, whole metal casing 2 of insulating diolame 4 cladding and top cap 3, with the insulating properties who improves monomer electricity core 1, insulating diolame 4 exposes utmost point post 31 and explosion-proof valve 32 simultaneously, ensure the normal operating capability of monomer electricity core 1.
The insulating envelope 4 comprises a main body portion 41 and a connecting portion 42, the main body portion 41 mainly covers the metal shell 2, the connecting portion 42 is a covering top cover 3, the main body portion 41 and the connecting portion 42 are integrally formed, the main body portion 41 and the connecting portion 42 are matched with each other to cover the whole single battery cell 1, and a fixing adhesive layer is arranged on the inner side of the insulating envelope 4.
As shown in fig. 1 and 2, in one embodiment, the main body portion 41 is flat, and the connecting portion 42 includes a first connecting portion 421 and a second connecting portion 422, which are respectively disposed at two ends of the main body portion 41. In the process of coating the monomer electric core 1, the bottom surface of the monomer electric core 1 is placed in the center of the main body portion 41, at this time, the first connecting portion 421 and the second connecting portion 422 are located in the direction of the two large-area side surfaces of the monomer electric core 1, and the length of the main body portion 41 is greater than or equal to the length of the expanded surface of the metal casing 2, so that the two large-area side surfaces of the monomer electric core 1 can be completely coated.
The main body portion 41 is turned upwards along the height direction of the monomer electric core 1 to cover two large-area side surfaces of the monomer electric core 1, and at this time, the first connecting portion 421 and the second connecting portion 422 are respectively located at the edges of the two large-area side surfaces of the monomer electric core 1. The main body portion 41 and the connecting portion 42 have the same width, and the width of the main body portion 41 or the connecting portion 42 is equal to or slightly greater than the length of the single battery cell 1, so that a part of residual envelopes are ensured after the main body portion 41 covers two large side surfaces of the single battery cell 1, and two side surfaces of the single battery cell 1 can be covered at the same time.
Connecting portion 42 includes the connection position 423 that the interval set up and keeps away vacancy 424, connection position 423 is used for connecting first connecting portion 421 and second connecting portion 422, the length sum of connection position 423 on first connecting portion 421 and the second connecting portion 422 on 1 thickness direction of monomer electricity core needs slightly to be greater than the thickness of monomer electricity core 1, ensure that first connecting portion 421 and second connecting portion 422 can sealed top cap 3, first connecting portion 421 and the second connecting portion 422 keep away vacancy 424 and mutually support and form the through-hole, utmost point post 31 passes the through-hole with explosion-proof valve 32 and is connected with the external world.
In this embodiment, the step of coating the monomer electric core 1 with the insulating coating 4 is: placing the single battery cell 1 on the insulating coating film 4, and folding the main body part 41 along the height direction of the single battery cell 1 to coat two large-area side surfaces of the single battery cell 1; coating the two small-area side surfaces of the single battery cell 1 with the residual insulating coatings 4 of the main body part 41 on the two small-area side surfaces of the single battery cell 1; and the first connecting part 421 and the second connecting part 422 are turned over in opposite directions and are hermetically connected with each other to cover the top cover 3, so that the covering of the monomer battery core 1 is completed.
As shown in fig. 3, in another embodiment, the main body portion 41 is of a bag shape, and the height of the main body portion 41 is slightly larger than that of the unit battery cells 1, so as to ensure that the main body portion can completely cover the unit battery cells 1. The connection portion 42 includes a first connection portion 421 and a second connection portion 422, which are respectively provided at the long sides of the mouth of the main body portion 41. In the process of coating the individual battery cells 1, the individual battery cells 1 are inserted into the main body 41, and the first connection portion 421 and the second connection portion 422 are located in the direction of the large-area side of the individual battery cells 1.
The main body portion 41 is equal to the connecting portion 42 in length, and the width of the main body portion 41 or the connecting portion 42 is equal to or slightly greater than the length of the single battery cell 1, so that the metal casing 2 can be conveniently placed in the main body portion 41.
Connecting portion 42 includes the connection position 423 that the interval set up and keeps away vacancy 424, connection position 423 is used for connecting first connecting portion 421 and second connecting portion 422, the length sum of connection position 423 on first connecting portion 421 and the second connecting portion 422 on 1 thickness direction of monomer electricity core needs slightly to be greater than the thickness of monomer electricity core 1, ensure that first connecting portion 421 and second connecting portion 422 can sealed top cap, first connecting portion 421 and the second connecting portion 422 keep away vacancy 424 and mutually support and form the through-hole, pass the through-hole with external being connected in order to realize utmost point post 31 and explosion-proof valve 32.
In this embodiment, the step of coating the monomer electric core 1 with the insulating coating 4 is: putting the single battery cell 1 into the insulating coating film 4; and the first connecting part 421 and the second connecting part 422 are turned over in opposite directions and are hermetically connected with each other to cover the top cover 3, so that the coating of the single battery cell is completed.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (10)
1. The utility model provides a battery module, its characterized in that includes a plurality of monomer electricity cores, the monomer electricity core includes metal casing, top cap, monomer electricity core outside cladding has insulating diolame, insulating diolame has main part and connecting portion, the main part with the cladding of mutually supporting of connecting portion monomer electricity core.
2. The battery module according to claim 1, wherein the main body portion has a flat plate shape, the connecting portion includes a first connecting portion and a second connecting portion respectively disposed at both ends of the main body portion, and the connecting portion has the same width as the main body portion.
3. The battery module according to claim 1, wherein the main body portion is of a pouch type, the connecting portion includes a first connecting portion and a second connecting portion, the first connecting portion and the second connecting portion are respectively and correspondingly disposed on two corresponding long sides of the pouch opening of the main body portion, and the connecting portion and the main body portion have the same width.
4. The battery module according to claim 2 or 3, wherein the connecting portions comprise connecting positions and space-avoiding positions distributed at intervals, the first connecting portion and the second connecting portion are connected through the connecting positions, and the space-avoiding positions on the first connecting portion and the space-avoiding positions on the second connecting portion are combined to form through holes.
5. The battery module according to claim 4, wherein the cell further comprises a pole post and an explosion-proof valve, and the pole post and the explosion-proof valve pass through the insulating envelope through the through hole.
6. The battery module according to claim 4, wherein the width of the main body portion or the connecting portion is equal to or slightly greater than the width of the unit cells.
7. The battery module according to claim 2, wherein the main body part has a length equal to or greater than a length of the developed surface of the metal case.
8. The battery module of claim 3, wherein the height of the main body portion is slightly greater than the height of the cell.
9. The battery module according to claim 1, wherein the body part is integrally formed with the connection part.
10. The battery module according to claim 1, wherein a fixing adhesive layer is provided inside the insulating envelope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020478056.9U CN211828843U (en) | 2020-04-03 | 2020-04-03 | Battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020478056.9U CN211828843U (en) | 2020-04-03 | 2020-04-03 | Battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211828843U true CN211828843U (en) | 2020-10-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020478056.9U Active CN211828843U (en) | 2020-04-03 | 2020-04-03 | Battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211828843U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024098898A1 (en) * | 2022-11-08 | 2024-05-16 | 欣旺达动力科技股份有限公司 | Battery cell and electric device |
-
2020
- 2020-04-03 CN CN202020478056.9U patent/CN211828843U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024098898A1 (en) * | 2022-11-08 | 2024-05-16 | 欣旺达动力科技股份有限公司 | Battery cell and electric device |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 518000 1-2 Floor, Building A, Xinwangda Industrial Park, No. 18 Tangjianan Road, Gongming Street, Guangming New District, Shenzhen City, Guangdong Province Patentee after: Xinwangda Power Technology Co.,Ltd. Address before: 518107 Xinwangda Industrial Park, No.18, Tangjia south, Gongming street, Guangming New District, Shenzhen City, Guangdong Province Patentee before: SUNWODA ELECTRIC VEHICLE BATTERY Co.,Ltd. |
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| CP03 | Change of name, title or address |