Regenerating slurries for use in zinc-air batteries
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United States of America Patent
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Jul 20, 1993
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N/A
app pub date -
Dec 31, 1990
filing date -
Dec 31, 1990
priority date (Note) -
Expired
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Abstract
A process for the regeneration of an at least partially spent Zn-alkali slurry for use in metal-air batteries, including subjecting the slurry to at least the steps of (i) separating the slurry into dissolved and undissolved phases; (ii) electrolyzing the separated dissolved phase so that Zn deposits on a cathode in removable form; (iii) removing Zn from the cathode and consolidating the Zn into particles; and (iv) combining the Zn from step (iii) with the separated undissolved phase from step (i) and an additional aqueous Group Ia metal hydroxide.
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