Positive electrode for lead acid battery

Details Positive electrode for lead acid battery Positive electrode for lead acid battery

1981-01-26

1982-04-13

LeFevour, Charles R.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

429245, H01M 456

Patent

active

043248489

ABSTRACT:
A positive electrode for use in a lead-sulfuric acid electrolyte battery comprised of a grid supporting a layer of PbO.sub.2, said grid being comprised of an electrically conducting substrate having an adherent protective at least substantially pinhole-free shield of electrically conducting material, said shield being composed of a coating of semiconducting metal oxide, or a composite of at least a substantially pinhole-free external coating of semiconducting metal oxide and at least a substantially pinhole-free coating of metal intermediate to the substrate and semiconducting oxide coating, said sulfuric acid electrolyte having a substantially deleterious effect on said substrate but having no significant deleterious effect on the shield.

REFERENCES:
patent: 3870563 (1975-03-01), Ruben
patent: 4037031 (1977-07-01), Jacob

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