CN202423485U - Polymer lithium ion battery with multi-cell parallel structure - Google Patents
Polymer lithium ion battery with multi-cell parallel structure Download PDFInfo
- Publication number
- CN202423485U CN202423485U CN2011205588632U CN201120558863U CN202423485U CN 202423485 U CN202423485 U CN 202423485U CN 2011205588632 U CN2011205588632 U CN 2011205588632U CN 201120558863 U CN201120558863 U CN 201120558863U CN 202423485 U CN202423485 U CN 202423485U
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- Prior art keywords
- electric core
- cell
- battery
- positive pole
- negative
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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Abstract
The utility model discloses a polymer lithium ion battery with a multi-cell parallel structure. The polymer lithium ion battery comprises a cell and an aluminum plastic film which wraps the cell, wherein the cell comprises more than two independent cell units which are mutually laminated and fixed; a positive tab and a negative tab are respectively arranged on the same side of each cell unit; a positive tab area and a negative tab area are formed on one side of the cell; all positive tabs are distributed in the positive tab area, staggered and electrically connected with one another; and all negative tabs are distributed in the negative tab area, staggered and electrically connected with one another. The cell of the battery is formed by connecting the cell units in parallel, so the length of a pole piece of a single cell unit can be greatly reduced, difficulty in the sheet production and winding processing of the battery is reduced, and the yield of the battery is improved; and the positive tab of the cell is formed by combining the positive tabs of a plurality of cell units, and the negative tab of the cell is formed by combining the negative tabs of a plurality of cell units, so the impedance of the battery can be greatly reduced, and the discharge performance of the battery is optimized.
Description
Technical field
The utility model relates to polymer Li-ion battery.
Background technology
The conventional polymer core of lithium ion cell adopts single heart winding method or the moulding of lamination mode usually.The battery of single heart winding method moulding, owing to receive the influence of pole piece length in the manufacture process, general coiled battery size is less, thickness≤8.0mm, width≤80.0mm, and with the increase of cell thickness, the probability of distortion also strengthens gradually; Simultaneously, along with the lengthening gradually of cell thickness, pole piece size, the flash-over characteristic of battery reduces gradually.Adopt the battery of lamination mode moulding, though battery size is bigger, fabrication yield is low, the equipment input cost is big, the manufacturing cycle is long.
Summary of the invention
The utility model technical problem to be solved provides a kind of how electric core parallel-connection structure polymer Li-ion battery, makes simply, has promoted the battery rate of finished products; Lower battery impedance significantly, improve the discharge performance of optimizing battery.
For solving the problems of the technologies described above; The technical scheme of the utility model is: a kind of how electric core parallel-connection structure polymer Li-ion battery; Comprise the aluminum plastic film of electric core and the electric core of parcel, said electric core comprises independently electric core unit more than two, and said electric core unit is range upon range of and fixing each other; The same side of said each electric core unit is equipped with positive pole ear and negative lug; On electric core one side, form positive pole ear zone and negative lug zone, all positive pole ears are distributed in the positive pole ear zone, and said positive pole ear staggers each other and electrically connects; All negative lug are distributed in the negative lug zone, and said negative lug staggers each other and electrically connects.Through adopting electric core unit parallel connection to constitute the pond core of battery, make the pole piece length of single electric core unit significantly to shorten, thereby reduce battery production film-making, coiling difficulty of processing, promote the battery rate of finished products; Simultaneously, the positive pole ear of electric core is made up of the positive pole ear merging of some electric core units, and the negative lug of electric core is made up of the negative lug merging of some electric core units, can lower battery impedance significantly like this, improves and optimizes cell discharge performance.
As improvement, said positive pole ear and negative lug electrically connect through metal cover board.Through metal cover board the positive and negative electrode lug of a plurality of electric core units is merged output.
As improvement, said electric core unit is fixing through binding.The beneficial effect that the utility model is compared with prior art brought is:
Through adopting electric core unit parallel connection to constitute the pond core of battery, make the pole piece length of single electric core unit significantly to shorten, thereby reduce battery production film-making, coiling difficulty of processing, promote the battery rate of finished products; Simultaneously, the positive pole ear of electric core is made up of the positive pole ear merging of some electric core units, and the negative lug of electric core is made up of the negative lug merging of some electric core units, can lower battery impedance significantly like this, improves and optimizes cell discharge performance.
Description of drawings
Fig. 1 is the utility model core strueture front view.
Fig. 2 is the utility model core strueture vertical view.
Embodiment
Below in conjunction with Figure of description the utility model is described further.
Like Fig. 1, shown in 2; A kind of how electric core parallel-connection structure polymer Li-ion battery comprises electric core and the aluminum plastic film that wraps up electric core, and said electric core comprises independently electric core unit 1 more than two; The electric core of present embodiment has two electric core units 1 to cascade each other; Fixing through binding then, the same side of said each electric core unit 1 is equipped with positive pole ear 2 and negative lug 3, on electric core one side, forms positive pole ear zone and negative lug zone; All positive pole ears 2 are distributed in the positive pole ear zone, and said positive pole ear 2 staggers each other and electrically connects through metal cover board; All negative lug 3 are distributed in the negative lug zone, and said negative lug 3 staggers each other and electrically connects through metal cover board.
The manufacturing approach of the electric core unit 1 of present embodiment is a prior art, here no longer is described in detail, and those skilled in the art should be able to produce the electric core unit 1 that this practicality is mentioned through prior art.It should be noted that; Two electric core units 1 during fabrication; Stagger each other in the welding position of lug; Make pole piece behind coiling and molding, the positive and negative electrode lug 2 of one of them electric core unit 1, between 3 apart from w1 greater than another one electricity core unit 1 positive and negative electrode lug 2, between 3 apart from w2.
Through adopting electric core unit 1 parallel connection to constitute the pond core of battery, make the pole piece length of single electric core unit 1 significantly to shorten, thereby reduce battery production film-making, coiling difficulty of processing, promote the battery rate of finished products; Simultaneously, the positive pole ear 2 of electric core is made up of positive pole ear 2 merging of some electric core units 1, and the negative lug 3 of electric core is made up of negative lug 3 merging of some electric core units 1, can lower battery impedance significantly like this, improves and optimizes cell discharge performance.。
Claims (3)
1. electric core parallel-connection structure polymer Li-ion battery more than a kind; Comprise the aluminum plastic film of electric core and the electric core of parcel, it is characterized in that: said electric core comprises independently electric core unit more than two, and said electric core unit is range upon range of and fixing each other; The same side of said each electric core unit is equipped with positive pole ear and negative lug; On electric core one side, form positive pole ear zone and negative lug zone, all positive pole ears are distributed in the positive pole ear zone, and said positive pole ear staggers each other and electrically connects; All negative lug are distributed in the negative lug zone, and said negative lug staggers each other and electrically connects.
2. a kind of how electric core parallel-connection structure polymer Li-ion battery according to claim 1 is characterized in that: said positive pole ear and negative lug electrically connect through metal cover board.
3. a kind of how electric core parallel-connection structure polymer Li-ion battery according to claim 1 is characterized in that: said electric core unit is fixing through binding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205588632U CN202423485U (en) | 2011-12-29 | 2011-12-29 | Polymer lithium ion battery with multi-cell parallel structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205588632U CN202423485U (en) | 2011-12-29 | 2011-12-29 | Polymer lithium ion battery with multi-cell parallel structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202423485U true CN202423485U (en) | 2012-09-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205588632U Expired - Fee Related CN202423485U (en) | 2011-12-29 | 2011-12-29 | Polymer lithium ion battery with multi-cell parallel structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202423485U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280549A (en) * | 2013-05-21 | 2013-09-04 | 深圳市量能科技有限公司 | Double-winding-core polymer flexibly-packaged lithium-ion battery and manufacturing method thereof |
| CN108987656A (en) * | 2017-05-31 | 2018-12-11 | 东莞新能源科技有限公司 | Battery |
| CN112864541A (en) * | 2021-03-01 | 2021-05-28 | 昆山宝创新能源科技有限公司 | Laminated battery cell, manufacturing method of laminated battery cell and laminated lithium battery |
-
2011
- 2011-12-29 CN CN2011205588632U patent/CN202423485U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103280549A (en) * | 2013-05-21 | 2013-09-04 | 深圳市量能科技有限公司 | Double-winding-core polymer flexibly-packaged lithium-ion battery and manufacturing method thereof |
| CN108987656A (en) * | 2017-05-31 | 2018-12-11 | 东莞新能源科技有限公司 | Battery |
| CN112864541A (en) * | 2021-03-01 | 2021-05-28 | 昆山宝创新能源科技有限公司 | Laminated battery cell, manufacturing method of laminated battery cell and laminated lithium battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20151229 |
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| EXPY | Termination of patent right or utility model |