Manufacturing of zinc-alkaline batteries

Details Manufacturing of zinc-alkaline batteries Manufacturing of zinc-alkaline batteries

H - Electricity

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H01M 6/04 (2006.01) C01F 17/00 (2006.01) C22C 18/00 (2006.01) H01M 4/04 (2006.01) H01M 4/40 (2006.01) H01M 4/42 (2006.01) H01M 4/62 (2006.01) H01M 6/06 (2006.01)

Patent

CA 2090146

A non-pollution zinc-alkaline battery excellent in storage stability can be obtained by using, in formu- lation for negative electrode, a zinc alloy which contains at least one element selected from the group consisting of bismuth, lithium, calcium and aluminum which is free from mercury, lead, cadmium, indium and thallium is used as an active material and yttrium hydroxide or yttrium oxide optimized in a starting material therefor, particle size and weight loss on heat decomposition as an inorganic inhibitor. The storage stability of the battery can be further improved by adding to the above formulation for a negative electrode a proper amount of a surfactant having a polyethylene oxide group in hydrophilic group and a perfluoroalkyl group in oleophilic group as an organic inhibitor.

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