Patent ID: 6187473
Filing Date: 2001-02-13
Classification: H01M,Y02E,Y02P

Abstract:
A cylindrical alkaline storage battery including a cylindrical casing, a pair of opposed electrodes spirally rolled up through a separator and coupled within said cylindrical casing, at least one of said electrodes being in the form of a non-sintered electrode composed of an active material retention substrate of three dimensionally meshed structure impregnated with paste of an active material, and a current collector formed with a disc portion for connection to said non-sintered electrode and a lead portion for connection to a terminal,wherein the active material retention substrate of said non-sintered electrode has an elongated end portion at one side thereof for connection to the disc portion of said current collector that is formed so as to be substantially free from said paste of the active material, and wherein a perforated sheet metal is welded to the elongated end portion of said non-sintered electrode and welded at one side edge thereof to the disc portion of said current collector in a condition where said non-sintered electrode has been contained within said cylindrical casing.