Title:
CYLINDRICAL SECONDARY BATTERY, BATTERY PACK, AND MOVEMENT MEANS
Document Type and Number:
WIPO Patent Application WO/2022/191514
Kind Code:
A1
Abstract:
The present specification provides a cylindrical secondary battery, a battery pack, and a movement means, the cylindrical secondary battery having a structure in which a first electrode, a second electrode, and a separator interposed therebetween are sequentially stacked and wound, wherein the first electrode includes an uncoated portion on which an active material is not coated on one surface of a current collector. The uncoated portion comprises: an electrode assembly including a first electrode tab bent from an end of the electrode assembly in a winding center or outward direction; a battery can for accommodating the electrode assembly through an opening formed on one side thereof; a current collecting plate including three or more tab coupling portions electrically connected to the first electrode tab, and can coupling portions having a continuous outer circumferential surface extending from ends of the tab coupling portions toward the opening of the battery can and electrically connected to the inner surface of the battery can; and a top cap for covering the opening of the battery can.
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Inventors:
PARK KYEONG HOON (KR)
JUNG JIMIN (KR)
LIM JAE WON (KR)
LEE JE JUN (KR)
KIM HAK KYUN (KR)
JUNG JIMIN (KR)
LIM JAE WON (KR)
LEE JE JUN (KR)
KIM HAK KYUN (KR)
Application Number:
PCT/KR2022/003065
Publication Date:
September 15, 2022
Filing Date:
March 04, 2022
Export Citation:
Assignee:
LG ENERGY SOLUTION LTD (KR)
International Classes:
H01M50/538; H01M50/167
Foreign References:
| US20180182560A1 | 2018-06-28 | |||
| JP4401634B2 | 2010-01-20 | |||
| CN1591927A | 2005-03-09 | |||
| KR20050121904A | 2005-12-28 | |||
| KR20050106539A | 2005-11-10 | |||
| KR20210030315A | 2021-03-17 | |||
| US6677082B2 | 2004-01-13 | |||
| US6680143B2 | 2004-01-20 |
Attorney, Agent or Firm:
CHOI, Hee-Kyeong (KR)
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