Patent ID: 6833010
Filing Date: 2004-12-21
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
A prismatic battery module comprising:a prismatic battery case constructed by connecting a plurality of prismatic cell cases together in series, each said prismatic cell case having short lateral walls and long lateral walls, said plurality of cell cases being separated from one another by separation walls comprising said short lateral walls respectively; an electrode plate group formed by alternately stacking positive and negative electrode plates interposing a separator therebetween and further forming lead portions by projecting one side portion of said positive electrode plates and one side portion of said negative electrode plates in opposite directions, respectively; and collectors connected to said lead portions on both sides of said electrode plate group, said prismatic battery module being further constructed such that adjacent electrode plate groups consisting of said electrode plate group are connected to each other by connecting adjacent collectors of the respective electrode plate groups to each other through a connection aperture formed in a central portion of said separation wall and disposing said adjacent electrode plate groups in respective cell cases alongside in series, and a sealing material is applied to each space between each of said separation walls around said connection aperture and each of said collectors.