US 12,347,890 B2
Secondary battery, battery module, and device using secondary battery as power supply
Hu Xu, Fujian (CN); Yuanbao Chen, Fujian (CN); Long Xu, Fujian (CN); and Jiao Dong, Fujian (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 May 27, 2022, as Appl. No. 17/826,466.
Application 17/826,466 is a continuation of application No. PCT/CN2020/141780, filed on Dec. 30, 2020.
Claims priority of application No. 202020306566.8 (CN), filed on Mar. 12, 2020.
Prior Publication US 2022/0285795 A1, Sep. 8, 2022
Int. Cl. H01M 50/533 (2021.01); H01M 50/204 (2021.01); H01M 50/249 (2021.01); H01M 50/547 (2021.01); H01M 50/59 (2021.01)
CPC H01M 50/533 (2021.01) [H01M 50/204 (2021.01); H01M 50/249 (2021.01); H01M 50/547 (2021.01); H01M 50/59 (2021.01); H01M 2220/20 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A secondary battery, comprising:
an electrode assembly, wherein the electrode assembly comprises a main body and tabs extending from the main body;
a cap assembly, wherein the cap assembly comprises a cap plate, electrode terminals, and an insulation baffle, the electrode terminals are disposed on the cap plate, and the insulation baffle is connected to a side of the cap plate, wherein the side is close to the main body; and
current collection members, wherein the current collection members are at least partly located between the insulation baffle and the main body, and each of the current collection members comprises a tab connection portion connected to one of the tabs, a tilt portion and a terminal connection portion,
wherein the insulation baffle contains a first recess, a first bulge and a second bulge, wherein the first recess is recessed against a lower surface of the insulation baffle away from the main body, and the tab connection portion is at least partly accommodated in the first recess;
wherein the first bulge protrudes against the lower surface, and along the thickness direction of the insulation baffle, the terminal connection portion is located on a side of the first bulge, wherein the side is close to the main body, and the tilt portion is located on a side of the first bulge along a length direction of the secondary battery;
wherein along a direction close to the main body, the second bulge protrudes against the first bulge.