CN201413851Y - Square battery - Google Patents
Square battery Download PDFInfo
- Publication number
- CN201413851Y CN201413851Y CN2009201571300U CN200920157130U CN201413851Y CN 201413851 Y CN201413851 Y CN 201413851Y CN 2009201571300 U CN2009201571300 U CN 2009201571300U CN 200920157130 U CN200920157130 U CN 200920157130U CN 201413851 Y CN201413851 Y CN 201413851Y
- Authority
- CN
- China
- Prior art keywords
- battery
- cover plate
- model
- battery container
- kink
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000005452 bending Methods 0.000 claims abstract description 7
- 239000003792 electrolyte Substances 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052744 lithium Inorganic materials 0.000 abstract description 3
- 238000011031 large-scale manufacturing process Methods 0.000 abstract 1
- 238000004804 winding Methods 0.000 abstract 1
- 238000003466 welding Methods 0.000 description 5
- 238000003825 pressing Methods 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- 238000009413 insulation Methods 0.000 description 2
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- OJIJEKBXJYRIBZ-UHFFFAOYSA-N cadmium nickel Chemical compound [Ni].[Cd] OJIJEKBXJYRIBZ-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010295 mobile communication Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
-
- 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
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The utility model relates to a square battery, especially relates to a square lithium secondary battery. The utility model discloses a square battery comprising a cover board, a battery shell, electrolyte, and an electric core unit formed by winding the positive and negative pole pieces and the separator paper. The battery is characterized in that a bending portion is disposed on the opening of the battery shell, an annular boss is provided on the inner wall of the battery shell beneath the bending portion, and the cover board is disposed between said boss and bending portion. According to theutility model, the square battery is relatively thin at the opening of the shell sealing, relatively great in consistency, simple in manufacturing process, low in cost, and further effectively improves production efficiency, thus the battery is suitable for large scale production.
Description
Technical field
The utility model relates to a kind of rectangular cell, particularly a kind of square lithium secondary battery.
Background technology
Lithium ion battery is the third generation small battery after nickel-cadmium cell, Ni-MH battery.As a kind of novel chemical power source, it has the operating voltage height, specific energy is big, the discharge potential curve is steady, self discharge is little, have extended cycle life, cryogenic property is good, memoryless, the advantage that pollution-free grade is outstanding, can satisfy people to needed battery miniaturization and of portable electronics and environmentally friendly double requirements, be widely used in mobile communication, notebook computer, take the photograph compact electronic devices such as putting all-in-one, simultaneously lithium ion battery also can fine realization heavy-current discharge, application has all been arranged on battery of electric bicycle and battery-operated motor cycle, and large-scale lithium ion battery group also can be used as the power of pure electric vehicle simultaneously.
The electric core unit that lithium secondary battery generally comprises cover plate assembly, battery container, electrolyte and is wound into by positive and negative plate and diaphragm paper, in its production process, cover plate adopts the mode and the battery container of laser welding to be tightly connected, because of adopting laser welding, housing and side edge thereof in design, promptly the laser welding place is thicker, and needs a large amount of laser welding machines, inefficiency, consistency is very poor.
The utility model content
The purpose of this utility model provides a kind of rectangular cell.The utility model has solved prior art and has adopted the weld of laser welding thicker, the problem of inefficiency.
In order to achieve the above object, technical solution adopted in the utility model is: a kind of rectangular cell, comprise cover plate assembly, battery container, electrolyte and by just, the electric core unit that negative plate and diaphragm paper are wound into, battery cover board assembly comprises cover plate, connector, insulating part and pressing plate, connector passes insulating part cover plate is connected with pressing plate, and described connector and cover plate insulation, it is characterized in that, be provided with a kink at the battery container opening part, battery container inwall below kink is provided with an annular boss, and cover plate is between aforementioned boss and kink.
Be provided with a sealing ring between the kink of aforementioned battery container and the cover plate.
The aforementioned cover panel edges can also be provided with a circular step, and the bending part of battery container is in step, and aforementioned sealing ring is between the bending part of the circular step of described side edge thereof and battery container.
The aforementioned cover panel edges can also be provided with an annular recess, and described sealing ring is arranged in the annular recess of side edge thereof.
Rectangular cell of the present utility model, the housing sealing part is thinner, and consistency is better, and manufacturing process is simple, and is with low cost, and improved production efficiency effectively, very suitable scale of mass production.
Description of drawings
Fig. 1 is a perspective view of the present utility model;
Fig. 2 is a profile of the present utility model;
Fig. 3 is the partial enlarged drawing at a place among Fig. 2;
Fig. 4 is the profile of another rectangular cell;
Fig. 5 is the partial enlarged drawing at a place among Fig. 4.
Embodiment
Below with reference to accompanying drawing, by detailed description, so that the technical solution of the utility model and beneficial effect thereof are apparent to preferred embodiment of the present utility model.
1 one kinds of rectangular cells of embodiment, as Fig. 1, Fig. 2, shown in Figure 3, comprise battery container 1, cover plate assembly, electrolyte and just, the electric core unit (not marking) that negative plate and diaphragm paper are wound into, battery cover board assembly comprises cover plate 2, connector 8, insulating part 7 and pressing plate 9, connector 8 passes insulating part 7 cover plate 2 is connected with pressing plate 9, and described connector 8 and cover plate 2 insulation, be provided with a kink 3 at battery container 1 opening part, battery container 1 inwall below kink 3 is provided with an annular boss 4, cover plate 2 is between aforementioned annular boss 4 and kink 3, also be provided with a circular step 5 at the edge of cover plate 2, in circular step, can also be provided with an insulated ring 6, described insulated ring 6 is between the bending part 3 of the circular step 5 at cover plate 2 edges and battery container, kink 3 in the battery container 1 is arranged in the circular step 5 at cover plate 2 edges, thereby cover plate 2 and kink 3 and annular boss 4 in the battery container 1 are combined closely, reach the purpose of sealed cell housing.
2 one kinds of rectangular cells of embodiment as Fig. 4, shown in Figure 5, adopt annular recess 15 at the edge of cover plate 2, and insulated ring 6 is arranged in aforementioned annular recess 15, and all the other structures are identical with embodiment 1.
Claims (3)
1, a kind of rectangular cell, comprise cover plate, battery container, electrolyte and the electric core unit that is wound into by positive and negative plate and diaphragm paper, it is characterized in that, be provided with a kink at the battery container opening part, battery container inwall below kink is provided with an annular boss, and cover plate is between aforementioned boss and kink.
2, rectangular cell according to claim 1 is characterized in that, the aforementioned cover panel edges can also be provided with a circular step, and the bending part of battery container is in step.
3, rectangular cell according to claim 1 is characterized in that, aforementioned cover plate periphery can also be provided with an annular seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201571300U CN201413851Y (en) | 2009-05-13 | 2009-05-13 | Square battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201571300U CN201413851Y (en) | 2009-05-13 | 2009-05-13 | Square battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201413851Y true CN201413851Y (en) | 2010-02-24 |
Family
ID=41715732
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201571300U Expired - Lifetime CN201413851Y (en) | 2009-05-13 | 2009-05-13 | Square battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201413851Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769113A (en) * | 2012-08-07 | 2012-11-07 | 蒋如金 | 9V battery shell |
| CN104641486A (en) * | 2012-09-26 | 2015-05-20 | 罗伯特·博世有限公司 | Battery cell having a cover plate fixed in the housing in a positive manner |
| CN113131102A (en) * | 2021-04-14 | 2021-07-16 | 湖北亿纬动力有限公司 | Battery and manufacturing method thereof |
| CN114335828A (en) * | 2021-12-30 | 2022-04-12 | 常州瑞德丰精密技术有限公司 | Battery, electric automobile and preparation method of battery |
-
2009
- 2009-05-13 CN CN2009201571300U patent/CN201413851Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102769113A (en) * | 2012-08-07 | 2012-11-07 | 蒋如金 | 9V battery shell |
| CN104641486A (en) * | 2012-09-26 | 2015-05-20 | 罗伯特·博世有限公司 | Battery cell having a cover plate fixed in the housing in a positive manner |
| CN104641486B (en) * | 2012-09-26 | 2018-07-24 | 罗伯特·博世有限公司 | Battery unit with the fixed cover board in locking manner of the shape in shell |
| US10135039B2 (en) | 2012-09-26 | 2018-11-20 | Robert Bosch Gmbh | Battery cell comprising a covering plate fixed in a form-fitting manner in a housing |
| CN113131102A (en) * | 2021-04-14 | 2021-07-16 | 湖北亿纬动力有限公司 | Battery and manufacturing method thereof |
| CN114335828A (en) * | 2021-12-30 | 2022-04-12 | 常州瑞德丰精密技术有限公司 | Battery, electric automobile and preparation method of battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170612 Address after: 518119 Beek Industrial Zone, Kwai Chung street, Dapeng New District, Guangdong, Shenzhen Patentee after: SHENZHEN BAK BATTERY CO., LTD. Address before: Kwai Chung street Beek Industrial Park in Longgang District of Shenzhen City, Guangdong province 518119 Patentee before: Shenzhen Bak Battery Co., Ltd. |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Shenzhen Bak Battery Co., Ltd. Document name: Notification of Passing Examination on Formalities |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100224 |