Patent ID: 9634300
Date: 2017-04-25
CPC Classifications: H01M,Y02E,Y02P

Claim:
1. A secondary battery comprising: a case; a cap plate coupled to the case; at least one electrode assembly accommodated in the case, the electrode assembly comprising a positive electrode plate, a negative electrode plate, and a separator located between the positive and negative electrode plates; an electrode terminal protruding outward from the cap plate; an electrode collector comprising a first portion coupled to the electrode terminal, a second portion coupled to the electrode assembly, and a third portion being bent and extending between the first portion and the second portion; a gasket surrounding the electrode terminal; and a reinforcement part coupled to the gasket such that the reinforcement part extends around at least three sides of the third portion of the electrode collector to prevent the electrode collector from bending in a direction away from the electrode assembly, wherein the reinforcement part is molded to accommodate the third portion of the electrode collector.