Title:
SECONDARY BATTERY AND DEVICE INCLUDING SAME
Document Type and Number:
WIPO Patent Application WO/2021/118020
Kind Code:
A1
Abstract:
A secondary battery according to an embodiment of the present invention comprises: an electrode assembly having a jelly-roll structure and comprising a cathode sheet, an anode sheet, and a separator; a cylindrical case in which the electrode assembly is contained; and a flat spiral spring placed between the outer circumferential surface of the electrode assembly and the inner wall of the cylindrical case.
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Inventors:
LEE JEONGBEOM (KR)
YOON JONG KEON (KR)
HAH HOEJIN (KR)
YOON JONG KEON (KR)
HAH HOEJIN (KR)
Application Number:
PCT/KR2020/012510
Publication Date:
June 17, 2021
Filing Date:
September 16, 2020
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M10/0587; H01M10/04
Foreign References:
| KR19990031053U | 1999-07-26 | |||
| KR101040875B1 | 2011-06-16 | |||
| KR20000038155A | 2000-07-05 | |||
| JP2001068166A | 2001-03-16 | |||
| US20150263378A1 | 2015-09-17 |
Other References:
See also references of EP 4027422A4
Attorney, Agent or Firm:
YOU ME PATENT AND LAW FIRM (KR)
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