Patent ID: 9123927
Filing Date: 2015-09-01
Classification: H01M,Y02E,Y02P

Abstract:
1. A secondary battery comprising: an electrode assembly comprising a first electrode having a first polarity and a second electrode having a second polarity different from the first polarity; a collecting plate electrically connected to the first electrode and having a short circuit hole with an electrically conductive perimeter having the first polarity; a case accommodating the electrode assembly and the collecting plate and having an opening; a short circuit member configured to short circuit the secondary battery and comprising a short circuit plate having the first polarity installed in the short circuit hole and including a first side facing a first internal chamber of the case and a second side facing a second internal chamber of the case that is configured to maintain a separate internal pressure from the first internal chamber; and a cap assembly comprising a cap plate sealing the opening of the case, wherein the short circuit plate faces the cap plate, and wherein the short circuit plate and the cap plate are made of a conductive material and configured to have different polarities.