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Title:
SECONDARY BATTERY, BATTERY MODULE, AND DEVICE USING BATTERY AS POWER SOURCE
Document Type and Number:
WIPO Patent Application WO/2021/143481
Kind Code:
A1
Abstract:
Provided are a secondary battery (1000), a battery module, and a device using the battery (1000) as a power source. The secondary battery (1000) comprises: a top cover plate (1); an electrode terminal (4) arranged on the top cover plate (1); an electrode assembly (2), comprising a main body (21) and a tab (22) extending out of the main body (21), wherein the tab (22) comprises a connecting part (221) and a bending part (222), with the connecting part (221) being electrically connected to the electrode terminal (4), and the bending part (222) being bent relative to the connecting part (221) and being connected between the connecting part (221) and the main body (21); and a first insulation member (3), which is arranged on a side of the connecting part (221) that is away from the top cover plate (1), wherein the first insulation member (3) comprises a first insulation body (31) connected to the connecting part (221), a second insulation body (32) connected to the main body (21), and a third insulation body (33) connected between the first insulation body (31) and the second insulation body (32). At least part of the bending part (222) is not fixed on the first insulation member (3).

Inventors:
BAI LULU (CN)
Application Number:
PCT/CN2020/139185
Publication Date:
July 22, 2021
Filing Date:
December 24, 2020
Export Citation:
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Assignee:
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD (CN)
International Classes:
H01M50/533
Domestic Patent References:
WO2018021698A12018-02-01
Foreign References:
CN107968182A2018-04-27
CN107968182A2018-04-27
CN208189697U2018-12-04
CN209561523U2019-10-29
CN205248346U2016-05-18
CN209786120U2019-12-13
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