CN216354623U - Special-shaped lithium ion battery with Z-shaped laminated sheets - Google Patents
Special-shaped lithium ion battery with Z-shaped laminated sheets Download PDFInfo
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- CN216354623U CN216354623U CN202123045705.XU CN202123045705U CN216354623U CN 216354623 U CN216354623 U CN 216354623U CN 202123045705 U CN202123045705 U CN 202123045705U CN 216354623 U CN216354623 U CN 216354623U
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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 relates to a Z-shaped laminated special-shaped lithium ion battery, which adopts a first diaphragm and a second diaphragm which are mutually overlapped to carry out circuitous lamination arrangement, wherein the first diaphragm forms a first diaphragm horizontal section and a first diaphragm arc-shaped section which are connected end to end after circuitous extension; the structure adopts a coil material diaphragm, a coil material negative plate and a sheet-shaped positive plate for lamination, and the special-shaped lithium ion battery laminated by the production method can avoid die cutting edges at two sides of the negative plate and reduce the safety risk caused by edge burrs; meanwhile, the requirement of the cathode lamination is eliminated, and the lamination production efficiency can be doubled.
Description
Technical Field
The utility model relates to the field of lithium ion battery structures, in particular to a Z-shaped laminated special-shaped lithium ion battery.
Background
In recent years, with the steady increase of the demand of 3C products on lithium batteries, the gradual expansion of the market scale of new energy automobiles and the expansion of the demand of energy storage batteries, the production scale of lithium batteries in China is increased year by year. Along with the increase of the support force of the policy on the novel energy storage, the establishment of a commercial mechanism of the electric power market, the clear commercial mode of the energy storage and the continuous reduction of the cost of the lithium battery, the shipment quantity of the energy storage lithium battery continuously rises.
Taking the special-shaped lithium ion battery structure as an example, when the special-shaped lithium ion battery with the laminated plates is produced at present, the two sides of the pole piece need to be subjected to die cutting, and burrs are easily generated on the cutting edge of the die cutting, so that the quality of the battery is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the defects in the prior art and provides a Z-shaped laminated special-shaped lithium ion battery.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:
a Z-shaped laminated special-shaped lithium ion battery comprises a first diaphragm and a second diaphragm, wherein the first diaphragm and the second diaphragm are arranged in a Z shape, and the first diaphragm is extended in a circuitous manner to form a first diaphragm horizontal section and a first diaphragm arc-shaped section which are connected end to end;
the second diaphragm roundabout extends to form a second diaphragm horizontal section and a second diaphragm arc section which are connected end to end;
and a negative plate is arranged between the adjacent first diaphragm horizontal sections and the second diaphragm horizontal sections, and a positive plate is arranged between the adjacent first diaphragm horizontal sections and between the adjacent second diaphragm horizontal sections.
Furthermore, the plurality of positive plates are mutually spaced, and the plurality of negative plates are connected end to end.
Further, the structure formed by the first diaphragm, the second diaphragm, the positive plate and the negative plate forms the battery core body.
Further, the extending directions of the first diaphragm and the second diaphragm are the same, and the first diaphragm and the second diaphragm are parallel to each other.
Further, the negative plate is coated between the first diaphragm and the second diaphragm.
The utility model has the beneficial effects that: the structure adopts a first diaphragm and a second diaphragm which are mutually overlapped to carry out circuitous lamination arrangement, and the first diaphragm forms a first diaphragm horizontal section and a first diaphragm arc-shaped section which are connected end to end after circuitous extension; the structure adopts a coil material diaphragm, a coil material negative plate and a sheet-shaped positive plate for lamination, and the special-shaped lithium ion battery laminated by the production method can avoid die cutting edges at two sides of the negative plate and reduce the safety risk caused by edge burrs; meanwhile, the requirement of the cathode lamination is eliminated, and the lamination production efficiency can be doubled.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
As shown in fig. 1, a Z-shaped laminated special-shaped lithium ion battery comprises a first diaphragm 1 and a second diaphragm 2, wherein the first diaphragm 1 and the second diaphragm 2 are arranged in a Z shape, and the first diaphragm 1 is extended in a roundabout manner to form a first diaphragm horizontal section 11 and a first diaphragm arc-shaped section 12 which are connected end to end;
the second diaphragm 2 is extended in a roundabout way to form a second diaphragm horizontal section 21 and a second diaphragm arc-shaped section 22 which are connected end to end;
the negative plate 3 is arranged between the adjacent first diaphragm horizontal sections 11 and the second diaphragm horizontal sections 21, and the positive plate 4 is arranged between the adjacent first diaphragm horizontal sections 11 and between the adjacent second diaphragm horizontal sections 21.
The plurality of positive plates 4 are spaced from one another, and the plurality of negative plates 3 are connected end to end. The negative electrode plate 3 is coated between the first diaphragm 1 and the second diaphragm 2, the extending directions of the first diaphragm 1 and the second diaphragm 2 are consistent, and the first diaphragm 1 and the second diaphragm 2 are parallel to each other. The structure formed by the first diaphragm 1, the second diaphragm 2, the positive plate 4 and the negative plate 3 forms a battery core body.
In summary, the structure adopts the first membrane 1 and the second membrane 2 which are mutually overlapped to perform roundabout lamination arrangement, and the first membrane 1 forms a first membrane horizontal section 11 and a first membrane arc-shaped section 12 which are connected end to end after roundabout extension; the second diaphragm 2 is circuitously extended to form a second diaphragm horizontal section 21 and a second diaphragm arc section 22 which are connected end to end, a negative plate 3 is arranged between the adjacent first diaphragm horizontal sections 11 and the second diaphragm horizontal section 21, and a positive plate 4 is arranged between the adjacent first diaphragm horizontal sections 11 and the adjacent second diaphragm horizontal sections 21; meanwhile, the requirement of the cathode lamination is eliminated, and the lamination production efficiency can be doubled.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof, by way of example only, with reference to a square cell structure. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (5)
1. The Z-shaped laminated special-shaped lithium ion battery is characterized by comprising a first diaphragm and a second diaphragm, wherein the first diaphragm and the second diaphragm are arranged in a Z shape, and the first diaphragm is circuitously extended to form a first diaphragm horizontal section and a first diaphragm arc-shaped section which are connected end to end;
the second diaphragm roundabout extends to form a second diaphragm horizontal section and a second diaphragm arc section which are connected end to end;
and a negative plate is arranged between the adjacent first diaphragm horizontal sections and the second diaphragm horizontal sections, and a positive plate is arranged between the adjacent first diaphragm horizontal sections and between the adjacent second diaphragm horizontal sections.
2. The Z-shaped laminated lithium ion battery pack according to claim 1, wherein a plurality of positive plates are spaced from each other, and a plurality of negative plates are connected end to end.
3. The Z-shaped laminated lithium ion battery pack according to claim 1, wherein the structure of the first separator, the second separator, the positive plate and the negative plate forms a battery core.
4. The Z-laminated lithium ion battery pack according to claim 1, wherein the first and second separators have the same extension direction, and are parallel to each other.
5. The Z-laminated lithium ion battery pack according to claim 1, wherein the negative electrode sheet is wrapped between the first separator and the second separator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123045705.XU CN216354623U (en) | 2021-12-07 | 2021-12-07 | Special-shaped lithium ion battery with Z-shaped laminated sheets |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123045705.XU CN216354623U (en) | 2021-12-07 | 2021-12-07 | Special-shaped lithium ion battery with Z-shaped laminated sheets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216354623U true CN216354623U (en) | 2022-04-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123045705.XU Active CN216354623U (en) | 2021-12-07 | 2021-12-07 | Special-shaped lithium ion battery with Z-shaped laminated sheets |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216354623U (en) |
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2021
- 2021-12-07 CN CN202123045705.XU patent/CN216354623U/en active Active
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