Hydrogen evolution inhibitors for cells having zinc anodes
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United States of America Patent
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Mar 25, 1980
Grant Date -
N/A
app pub date -
Nov 3, 1978
filing date -
Nov 3, 1978
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Hydrogen evolution in cells having zinc anodes is reduced or eliminated by incorporating in the cell a surfactant which is a complex phosphate ester of a surfactant of the ethylene oxide-adduct type. This surfactant is added in such a manner that, directly or upon wetting of the anode by the electrolyte, there is an adsorption of surfactant on the surface of the zinc anode material, whereby hydrogen evolution is inhibited. The surfactant is desirably present in the cell in an amount of from 0.001% to 5% by weight of the zinc component of the cell.
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