Patent ID: 6946219
Filing Date: 2005-09-20
Classification: H01M,Y02E

Abstract:
1. A sealed prismatic battery comprising: a prismatic battery case comprising a plurality of prismatic cell cases coupled together via partition walls that extend transverse to side walls of the prismatic battery case; a plurality of electrode plate groups respectively encased in the cell cases and comprising a plurality of positive electrode plates and a plurality of negative electrode plates alternately stacked upon one another with separators interposed therebetween, one side edge of the positive electrode plates and the other side edge of the negative electrode plates protruding in opposite directions to provide respective lead portions; and a plurality of collectors each bonded to the lead portions on both sides of the electrode plate groups, wherein a plurality of openings are provided at least in one side wall of the prismatic battery case at locations corresponding to the partition walls so as to extend across two adjacent cell cases on both sides of each partition wall, pairs of conductive connection plates are arranged on both sides of each of the partition walls so as to be connected together through the partition walls, part of the conductive connection plates facing the openings, the collectors are connected to the part of the conductive connection plates facing the openings after the electrode plate groups are accommodated in the cell cases, and the openings are sealed in a manner that separates the cell cases.