Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Include electrolyte chemically specified and method
Patent
1993-06-14
1995-02-14
Maples, John S.
Chemistry: electrical current producing apparatus, product, and
Current producing cell, elements, subcombinations and...
Include electrolyte chemically specified and method
429219, 429229, 2521821, H01M 1026, H01M 434
Patent
active
053894693
ABSTRACT:
Solid divalent silver oxide is reacted in hot aqueous alkaline reaction medium with a solid bismuth component and a reducing agent. The reaction product comprises a novel compound containing silver, bismuth, and oxygen, which is used in making cathode pellets for use in alkaline electrochemical cells. The cells exhibit low internal impedance and substantially single voltage discharge characteristic of monovalent silver oxide while retaining a significant portion of the coulombic capacity a of divalent silver cathode, without toxicity problems attendant cathodes containing lead and/or cadmium.
REFERENCES:
patent: 4835077 (1989-05-01), Megahed et al.
patent: 4933054 (1990-06-01), Mazanec et al.
Electric Resistivity of AgO--Tvarusko, Nov. 1968.
Decomposition of AgO in Alkaline Solutions--Tvarusko, Aug. 1969.
Catalytic Activity--And Selectivity--Control for Oxidative Coupling of Methane by Oxygen--Pumping Through Yttria--Stabilized Zirconia--Otsuka, Jun. 1985.
Megahed El-Sayed A.
Passaniti Joseph L.
Zreiba Nuri A.
Maples John S.
Rayovac Corporation
Wilhelm Thomas D.
Woods Thomas F.
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