Caustic-based metal battery with seeded recirculating electrolyte
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United States of America Patent
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May 19, 1992
Grant Date -
N/A
app pub date -
Sep 5, 1990
filing date -
Sep 5, 1990
priority date (Note) -
Expired
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Abstract
A battery and a method for its operation are described. The battery comprises a caustic-based metal, e.g. aluminum, battery with a cathode adapted to reduce oxygen and a metal anode positioned in spaced juxtaposed relation to the cathode to define therewith an anode-cathode gap for receiving electrolyte to form an anode-cathode pair electrically coupled by electrolyte. The battery contains an alkaline electrolyte and seed particles adapted to decrease passivation of the anode during discharge of the battery. The seed particles are .alpha.-alumina of very fine particle size distribution obtained by calcination of high-purity alum.
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