Electrode compositions with high coulombic efficiencies
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United States of America Patent
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Aug 20, 2002
Grant Date -
Jul 19, 2001
app pub date -
Dec 15, 2000
filing date -
Mar 26, 1998
priority date (Note) -
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Abstract
An electrode composition that includes (a) an electrochemically active metal element which, prior to cycling, is in the form of an intermetallic compound or an elemental metal and (b) a non-electrochemically active metal element. The electrode compositions have high initial capacities that are retained even after repeated cycling. The electrode compositions also exhibit high coulombic efficiencies.
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