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US 7,682,737 B2Granted
Lead-zinc storage battery
OwnerJohn E. Staufferinventor
Life of this patent
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Abstract
A storage battery is provided such that in its charged condition the positive electrode comprises lead dioxide and the negative electrode comprises zinc. Upon discharge, the lead dioxide is reduced to lead monoxide and the zinc is oxidized to zinc oxide. The electrolyte comprises an aqueous solution of a chromate salt.
Claims3
A storage battery comprising:
- (a) a positive electrode of a lead-based material
- (b) a negative electrode of zinc;
- and
- (c) an alkaline electrolyte consisting of an aqueous solution of a chromate salt, wherein the lead-based material is converted to lead dioxide and oxidized zinc is converted to zinc upon charging, and the lead dioxide is reduced and the zinc is oxidized upon discharging.
1 more element
Dependencies are inferred from the claim text.