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 |
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.
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