Alkaline batteries containing a zinc powder with indium and bismuth
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United States of America Patent
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Aug 31, 1993
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app pub date -
Sep 24, 1991
filing date -
Dec 7, 1988
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Abstract
The zinc powder for alkaline batteries having a residual lead content of less than 30 ppm, an indium content of from 10 to 10,000 ppm, and preferably from 100 to 1,000 ppm, a gallium content of from 0 to 1,000 ppm and a content of alkali and/or alkaline earth metals of up to 1,000 ppm additionally contains from 10 to 10,000 ppm, and preferably from 100 to 1,000 ppm, of bismuth.
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