Title:
ELECTRODE SHEET, ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND ELECTRIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2024/093100
Kind Code:
A1
Abstract:
Embodiments of the present application provide an electrode sheet, an electrode assembly, a battery cell, a battery, and an electric device. The electrode sheet comprises: a current collector, the current collector comprising an insulating layer and a conductive layer arranged on an outer surface of the insulating layer; the conductive layer comprises a tab portion and a main body portion arranged in a first direction; a conductive structure, the conductive structure being welded to the tab portion to form a welded area, and the conductive structure extending in a direction away from the main body portion; in a second direction, the size of the end of the welded area closer to the main body portion is larger than a preset threshold, the preset threshold being negatively correlated with the thickness of the tab portion in a third direction, the second direction being perpendicular to the first direction and parallel to the tab portion , and the third direction being perpendicular to the first direction and the second direction. The technical solution of an embodiment of the present application can improve the safety of batteries.
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Inventors:
WU KAI (CN)
ZHANG ZIGE (CN)
XUE QINGRUI (CN)
LI WEI (CN)
ZHANG YU (CN)
ZHAO ZHENGYUAN (CN)
ZHANG ZIGE (CN)
XUE QINGRUI (CN)
LI WEI (CN)
ZHANG YU (CN)
ZHAO ZHENGYUAN (CN)
Application Number:
PCT/CN2023/083935
Publication Date:
May 10, 2024
Filing Date:
March 26, 2023
Export Citation:
Assignee:
JIANGSU CONTEMPORARY AMPEREX TECH LIMITED (CN)
CONTEMPORARY AMPEREX TECH CO LIMITED (CN)
CONTEMPORARY AMPEREX TECH CO LIMITED (CN)
International Classes:
H01M50/533; H01M4/13; H01M10/052; H01M10/0525; H01M10/054
Attorney, Agent or Firm:
LONGSUN LEAD IP LTD. (Floor 8 Building 3, Block 2, No. 81, Beiqing Roa, Haidian District Beijing 4, CN)
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