Zinc powder for alkaline batteries

Details Zinc powder for alkaline batteries Zinc powder for alkaline batteries

C - Chemistry, Metallurgy

22

C

75/77, 319/83

C22C 18/04 (2006.01) C22C 1/04 (2006.01) H01M 4/42 (2006.01)

Patent

CA 2029436

ABSTRACT Zinc powder for alkaline batteries The powder is free from Cd and Tl and it contains 0.005-2 % aluminium as well as either 0.0001-0.01 % REM, REM being a rare earth metal or a mixture of rare earth metals; or, besides zinc and unavoidable impurities, only 0.0001-2 % of at least one of the elements indium and REM; or, besides zinc and unavoidable impurities, only 0.003-2 % bis- muth and 0.0001-2 % of at least one of the elements indium and REM; or, besides zinc and unavoidable impurities, only 0.005-2 % lead and 0.0001-2 % of at least one of the elements indium and REM; or, besides zinc and unavoidable impurities, only 0.005-2 % lead, 0.003-2 % bismuth and 0.0001-2 % of at least one of the ele- ments indium and REM.

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