Patent ID: 9608240
Date: 2017-03-28
CPC Classifications: H01M,Y02E,Y02P

Claim:
1. A battery, including: a case accommodating an electrode assembly, the case including an opening at one end and including at least one sidewall, the sidewall having a coupling portion adjacent to the opening; a cap plate that closes the opening, the cap plate having an upper surface, the coupling portion of the sidewall connecting the cap plate to the case, the coupling portion including a top surface of the sidewall, the cap plate overlying a first portion of the top surface of the sidewall, such that the upper surface of the cap plate is entirely above the top surface of the sidewall; and a welding bead contacting the cap plate and entirely covering only a second portion of the top surface of the sidewall and a side surface of the cap plate, the second portion of the top surface extending from the first portion to an outer surface of the sidewall.