Patent ID: 9722232
Date: 2017-08-01
CPC Classifications: H01M,Y02E

Claim:
1. A secondary battery, comprising: an electrode assembly inside a can; a cap plate that seals the electrode assembly inside the can; an electrode pin electrically connected to the electrode assembly, the electrode pin being on the cap plate outside the can, with an insulating gasket between the electrode pin and the cap plate, a portion of the insulating gasket surrounding the electrode pin on the cap plate; and a first lead tab coupled to the electrode pin, the first lead tab including an upper section directly coupled to the electrode pin and extending in a first direction beyond the insulating gasket, and a lower section extending downward from an end of the upper section toward the cap plate in a stepwise manner, an extension length L from the insulating gasket to the end of the upper section satisfying 0.50 mm<L<1.00 mm.