Title:
WINDING LINING AND LONG CYLINDRICAL BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/078190
Kind Code:
A1
Abstract:
The present invention relates to the technical field of batteries, and in particular to a winding lining (2) and a long cylindrical battery. The winding lining (2) is used for supporting a battery cell (1) and transmitting winding actions of electrode plates (4, 5) and a separator (3) of the battery cell (1), the separator (3) being bonded to the winding lining (2); and the number n of edges of the winding lining (2) is greater than or equal to 3. According to the provided winding lining (2), the polygonal columnar winding lining (2) is left in a winding battery to form internal support of the battery cell (1), such that the problem that an inner ring of the battery cell (1) is deviated when a needle is pulled out after winding is completed is avoided. Meanwhile, the separator (3) and the polygonal inner ring are bonded together, such that the internal stress is consistent after the separator (3) and the electrode plates (4, 5) are wound, thereby avoiding the problem of wrinkling of the inner ring.
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Inventors:
SUN XIANGLI (CN)
TIAN BIAN (CN)
LI FENGDAN (CN)
YANG CHAO (CN)
YANG GUOZHONG (CN)
TIAN BIAN (CN)
LI FENGDAN (CN)
YANG CHAO (CN)
YANG GUOZHONG (CN)
Application Number:
PCT/CN2022/128461
Publication Date:
May 11, 2023
Filing Date:
October 29, 2022
Export Citation:
Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/0587; H01M10/04; H01M10/0525
Foreign References:
| CN216850050U | 2022-06-28 | |||
| CN110649328A | 2020-01-03 | |||
| CN101540418A | 2009-09-23 | |||
| CN101984515A | 2011-03-09 | |||
| CN201868529U | 2011-06-15 | |||
| JP2016213494A | 2016-12-15 | |||
| US8080329B1 | 2011-12-20 |
Attorney, Agent or Firm:
CENFO INTELLECTUAL PROPERTY AGENCY (CN)
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