US 11,695,190 B2
Secondary battery
Yuyong Lei, Ningde (CN); Chengyou Xing, Ningde (CN); and Peng Wang, Ningde (CN)
Assigned to Contemporary Amperex Technology Co., Limited, Ningde (CN)
Filed by Contemporary Amperex Technology Co., Limited, Fujian (CN)
Filed on Jul. 29, 2021, as Appl. No. 17/388,039.
Application 17/388,039 is a continuation of application No. PCT/CN2019/075564, filed on Feb. 20, 2019.
Claims priority of application No. 201920172256.9 (CN), filed on Jan. 30, 2019.
Prior Publication US 2021/0359381 A1, Nov. 18, 2021
Int. Cl. H01M 50/54 (2021.01); H01M 50/176 (2021.01); H01M 50/147 (2021.01); H01M 50/528 (2021.01); H01M 50/543 (2021.01); H01M 50/533 (2021.01); H01M 10/04 (2006.01); H01M 50/538 (2021.01); H01M 50/553 (2021.01); H01M 50/15 (2021.01)
CPC H01M 50/54 (2021.01) [H01M 50/147 (2021.01); H01M 50/176 (2021.01); H01M 50/528 (2021.01); H01M 50/533 (2021.01); H01M 50/543 (2021.01); H01M 10/0431 (2013.01); H01M 50/15 (2021.01); H01M 50/538 (2021.01); H01M 50/553 (2021.01); Y02E 60/10 (2013.01); Y02P 70/50 (2015.11)] 10 Claims
OG exemplary drawing
 
1. A secondary battery, comprising a first electrode assembly, a second electrode assembly, a case and a top cap assembly;
the first electrode assembly and the second electrode assembly are housed in the case;
the top cap assembly comprises a top cap plate and a first electrode terminal, the top cap plate is connected to the case, and the first electrode terminal is arranged on the top cap plate;
the first electrode assembly comprises a first body and first tabs extending from the first body, and the first tabs are multiple and stacked;
the second electrode assembly comprises a second body and second tabs extending from the second body, and the second tabs are multiple and stacked;
the second tabs are bent toward a direction approaching the first tabs and connected to the first tabs, and an end of each of the second tabs that is away from the second body is a second end portion;
each of the first tabs comprises a first connecting portion extending beyond the second end portions of the second tabs, and the first connecting portion is connected to the first electrode terminal.