Lead-acid battery having a grid base of a lead-calcium alloy and

Details Lead-acid battery having a grid base of a lead-calcium alloy and Lead-acid battery having a grid base of a lead-calcium alloy and

1989-06-15

1990-03-06

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429245, H01M 474

Patent

active

049065408

ABSTRACT:
A paste type lead storage battery having a grid constituted by a grid base formed of a lead-calcium alloy and a layer of lead-antimony-stannum alloy roll-bonded integrally to the grid base on at least one side thereof. Preferably, the grid is formed by expanding a sheet of base material to which the alloy layer is integrally roll-bonded. Portions of the base and the alloy layer that serve as a active material support are both in contact with a paste-like active material, and antimony and stannum coexist in the alloy layer. The charge restoration after standing in a discharged state and the lifetime during cycles of charge and discharge including heavy discharge are thereby improved.

REFERENCES:
patent: 3881952 (1975-05-01), Wheadon
patent: 4107407 (1978-08-01), Koch
patent: 4272977 (1981-07-01), Matter

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