Patent ID: 8460811
Filing Date: 2013-06-11
Classification: H01M,Y02E,Y02P

Abstract:
1. A prismatic sealed secondary battery comprising: an electrode assembly that has stacked or wound positive electrode substrate exposed portions and negative electrode substrate exposed portions; a positive electrode collector member that is electrically joined to the positive electrode substrate exposed portions; a negative electrode collector member that is electrically joined to the negative electrode substrate exposed portions; and a prismatic outer can, the positive electrode substrate exposed portions or the negative electrode substrate exposed portions, or both, being split into two groups, and therebetween being disposed an intermediate member that is made of a resin material and holds one or more connecting conductive members, the collector member for the substrate exposed portions that are split into two groups being disposed on at least one of the outermost faces of the substrate exposed portions that are split into two groups, and being electrically joined by a resistance welding method to the substrate exposed portions that are split into two groups, together with the one or more connecting conductive members, and voids being formed in the resin material portions of the intermediate member that are located around the resistance-welded portions of the connecting conductive members.