Patent ID: 6761993
Filing Date: 2004-07-13
Classification: H01M,Y02E,Y02P,Y10T

Abstract:
A battery comprising an electrode plate unit, the electrode plate unit including:a group of electrode plates comprising a plurality of positive electrode plates and a plurality of negative electrode plates that are alternately stacked upon one another with intervening separators therebetween, wherein: edges of said plurality of positive electrode plates protrude beyond edges of said plurality of negative electrode plates on one side of said group of electrode plates, and edges of said plurality of negative electrode plates protrude beyond edges of said plurality of positive electrode plates on an opposite side of said group of electrode plates; a positive electrode collector plate attached to said protruding edges of said plurality of positive electrode plates and having a plurality of parallel positive electrode collector plate channels each having raised edges protruding beyond a plane defined by said positive electrode collector plate, said raised edges of said positive electrode collector plate channels on a side of said positive electrode collector plate attached to said protruding edges of said plurality of positive electrode plates; a negative electrode collector plate attached to said protruding edges of said plurality of negative electrode plates and having a plurality of parallel negative electrode collector plate channels each having raised edges protruding beyond a plane defined by said negative electrode collector plate, said raised edges of said negative electrode collector plate channels on a side of said negative electrode collector plate attached to said protruding edges of said plurality of negative electrode plates; and a planar portion extending between adjacent said channels of at least one of said positive electrode collector plate and said negative electrode collector plate.