Patent ID: 8580428
Filing Date: 2013-11-12
Classification: H01M,Y02E,Y10T

Abstract:
1. A battery, comprising: an electrode body having a positive electrode and a negative electrode; a bottomed battery case that holds the electrode body; and a current collecting plate that connects the battery case with either the positive electrode or the negative electrode of the electrode body; wherein: a cut-out that exposes an end face of the electrode body is formed in the current collecting plate, a part of the current collecting plate and a bottom part of the battery case are fixed to each other by welding, the periphery of a weld composed of a portion that has been welded is formed with a sealed structure in which a seal member made of an elastic material is disposed so as to surround the periphery of the weld, and the weld is spatially isolated from the periphery of the electrode body including the cut-out of the current collecting plate by the seal member, and the seal member is disposed in a state of being compressed in a gap between the current collecting plate and the battery case.