Patent ID: 8119277

Claim:
A stack type battery comprising: a stacked electrode assembly having a plurality of positive electrode plates, a plurality of negative electrode plates, and separators, the positive electrode plates and the negative electrode plates being alternately stacked one upon the other with the separators interposed therebetween; positive electrode current collector tabs each made of a metal foil and extending outward from the plurality of positive electrode plates; negative electrode current collector tabs each made of a metal foil and extending outward from the plurality of negative electrode plates; a plate-shaped positive electrode current collector terminal; and a plate-shaped negative electrode current collector terminal, all of the positive electrode current collector tabs being overlapped with each other and welded to the plate-shaped positive electrode current collector terminal in said overlapped arrangement, and all of the negative electrode current collector tabs being overlapped with each other and welded to the plate-shaped negative electrode current collector terminal in said overlapped arrangement, wherein the positive electrode current collector tabs existing between the positive electrode plates and an end part of the positive electrode current collector terminal that is on the positive electrode plate side are joined to each other by welding, and/or the negative electrode current collector tabs existing between the negative electrode plates and an end part of the negative electrode current collector terminal that is on the negative electrode plate side are joined to each other by welding.