US 12,266,757 B2
Secondary battery, battery module and device
Huasheng Su, Ningde (CN); Lei Chen, Ningde (CN); Yulian Zheng, Ningde (CN); and Xinxiang Chen, Ningde (CN)
Assigned to Contemporary Amperex Technology (Hong Kong) Limited, Hong Kong (CN)
Filed by CONTEMPORARY AMPEREX TECHNOLOGY (HONG KONG) LIMITED, Hong Kong (CN)
Filed on Dec. 10, 2021, as Appl. No. 17/547,312.
Application 17/547,312 is a continuation of application No. PCT/CN2020/124502, filed on Oct. 28, 2020.
Claims priority of application No. 202020654976.1 (CN), filed on Apr. 26, 2020.
Prior Publication US 2022/0102749 A1, Mar. 31, 2022
Int. Cl. H01M 10/04 (2006.01); H01M 50/176 (2021.01); H01M 50/531 (2021.01); H01M 50/591 (2021.01)
CPC H01M 10/0481 (2013.01) [H01M 50/176 (2021.01); H01M 50/531 (2021.01); H01M 50/591 (2021.01)] 18 Claims
OG exemplary drawing
 
1. A secondary battery, comprising
a cap plate assembly;
an electrode assembly, comprising a main body and a tab extending from the main body;
an electrode terminal, arranged at the cap plate assembly to electrically connect with the tab;
a first pressing-against member, arranged between the cap plate assembly and the main body, wherein an accommodating space is formed between the first pressing-against member and the electrode terminal;
a second pressing-against member, arranged between the cap plate assembly and the main body;
wherein a part of the tab, that passes between the first pressing-against member and the second pressing-against member and extends into the accommodating space, is connected to the electrode terminal, and the first pressing-against member and the second pressing-against member press against two opposite surfaces of the tab respectively;
the cap plate assembly comprises a cap plate and an insulating member, and the insulating member is connected to a side of the cap plate closet to the main body; and
the first pressing-against member engages with the insulating member in the way of snap fit; and/or, the second pressing-against member engages with the insulating member in the way of snap fit.