Air electrode providing high current density for metal-air batteries
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United States of America Patent
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Issued Date -
Sep 19, 2002
app pub date -
Jan 16, 2001
filing date -
Jan 16, 2001
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Abandoned
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Abstract
An air electrode for electrochemical cells provides high current capability over prior air cathodes. The electrode has an active layer of a carbon matrix with an oxygen reduction catalyst and a fluoropolymer binder. An embedded current collector is coated with a stable conductive material such as a conductive carbon-based paint or gold, silver, palladium, platinum, chromium, titanium, or electroless nickel. The active layer uses activated carbon made from peat which has a high BET surface area and low hardness.
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