Title:
LEAD-ACID BATTERY
Document Type and Number:
Japanese Patent JPH01117273
Kind Code:
A
Abstract:
PURPOSE:To improve corrosion resistance, storage performance, and cycle life by using an electrode plate base body made of a lead alloy containing specific weight ratio of Ca, Pb, and Zn and causing alkaline or alkaline earth metal ions exist in the electrolyte. CONSTITUTION:Using an electrode plate base body made of a Pb-Ca-Sb-Zn alloy made by adding Zn to an alloy made by adding less than 0.09wt.% of Ca and 0.01-0.1wt.% of Sb to Pb, alkaline or alkaline earth metal ions are caused to exist in the electrolyte. If the Sb concentration is specified, effect on self-discharge is reduced and improves the adhesivity to active substances. If the Ca concentration range is specified, the mechanical strength is increased while the deterioration in cycle capacity is reduced. Zn on the other hand reduces the self-discharge and improves overdischarge characteristic and life characteristic. If alkaline metallic ions are caused to exist in the electrolyte, additional or synergistic effect is improved. This improves corrosion resistance, storage performance, overcharge-overdischarge characteristic, and cycle life.
Inventors:
NOBEYAMA KOICHI
SAITO SHINJI
MIURA ASAHIKO
SAITO SHINJI
MIURA ASAHIKO
Application Number:
JP27695287A
Publication Date:
May 10, 1989
Filing Date:
October 30, 1987
Export Citation:
Assignee:
SHIN KOBE ELECTRIC MACHINERY
International Classes:
H01M4/68; H01M10/08; (IPC1-7): H01M4/68
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