NON-CARBON BASED LITHIUM-AIR ELECTRODE
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United States of America Patent
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Issued Date -
Apr 30, 2015
app pub date -
Oct 17, 2014
filing date -
Oct 31, 2013
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Abstract
A cathode current collector for a lithium-air battery includes a carbon-free, conductive, porous matrix. The matrix may include a metal boride, a metal carbide, a metal nitride, a metal oxide and/or a metal halide. Example matrix materials are antimony-doped tin oxide and titanium oxide. A carbon-free cathode exhibits improved mechanical and electrochemical properties including improved cycle life relative to conventional carbon-containing porous cathode current collectors.
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