High temperature storage battery

Details High temperature storage battery High temperature storage battery

1986-11-28

1988-06-07

Skapars, Anthony

Chemistry: electrical current producing apparatus, product, and

Plural concentric or single coiled electrode

429112, 429120, 429193, 429199, 429218, H01M 620

Patent

active

047496347

ABSTRACT:
A high temperature, electrochemically reversible cell system comprising a divalent cation conducting solid electrolyte in contact with a positive electrode and a solid-state negative electrode contacting a divalent cation conducting molten salt providing ionic mediation to the solid electrolyte is disclosed. Suitable divalent cations include Ca.sup.2+ ; Sr.sup.2+ ; Ba.sup.2+ ; Zn.sup.2+ ; Cd.sup.2+ ; Pb.sup.2+ ; Hg.sup.2+ ; and Mn.sup.2+. According to a preferred embodiment, Ca.sup.2+ beta"-alumina solid electrolyte is in solid-state contact to a transition metal doped Ca.sup.2+ beta"-alumina positive electrode, and a solid-state calcium alloy negative electrode contacts a calcium halide molten salt providing ionic mediation to the solid-state Ca.sup.2+ beta"-alumina electrolyte.

REFERENCES:
patent: 4294898 (1981-10-01), Hartstein
patent: 4357215 (1982-11-01), Goodenough et al.

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