Alkaline electrolyte for galvanic elements

Details Alkaline electrolyte for galvanic elements Alkaline electrolyte for galvanic elements

1991-10-18

1993-03-09

Kalafut, Stephen J.

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

429206, 429207, H01M 614

Patent

active

051926288

ABSTRACT:
Surface rich forms of magnesium hydroxide and/or basic magnesium salts, or titanium (IV) oxide, preferably with lye or an aqueous potassium carbonate solution in weight ratios of between about 1:0.5 and 1:2, or between about 1:1.5 and 1:4.5, respectively, produce pastes of a consistency ranging from nearly dry to wet. These pastes are used in producing alkaline primary and secondary elements with immobilized electrolytes and high operating capacities. The specific surfaces of the solids are preferably in the range of from 25 to 50 m.sup.2 /g (and higher). The paste electrlytes can be utilized in the temperature range of from -50.degree. C. to near the boiling point of the pure electrolyte, while exhibiting capacities which scarcely differ from those of an additive-free KOH electrolyte.

REFERENCES:
patent: 2994625 (1961-08-01), Mendelsohn et al.
patent: 3578504 (1977-05-01), Hamlen et al.
patent: 4152224 (1979-05-01), Klein et al.
patent: 5026617 (1991-06-01), Kosaka et al.

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