Patent ID: 6338919
Filing Date: 2002-01-15
Classification: H01M,Y02E,Y10T

Abstract:
A lead-acid battery electrode plate manufactured by a process comprising the steps of:(1) consecutively supplying a lead or lead alloy sheet; (2) leaving a part in the vicinity of the center of the sheet as a non-expansion portion and expanding both sides like mesh to form a grid body; (3) filling active material paste into the grid body; and (4) cutting the grid body to predetermined dimensions; wherein the non-expansion portion forms a current collector part of the electrode plate along an expansion portion in an up and down direction of the electrode plate; one or more openings are made in a part of the non-expansion portion; a part of the non-expansion portion is projected above a position of an upper margin of the cut expansion portion as a current collector lug part so that the expansion direction is a width direction of the electrode plate.