ELECTRODE MATERIAL HAVING A HIGH CAPACITY
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United States of America Patent
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Issued Date -
Dec 19, 2013
app pub date -
Jan 27, 2012
filing date -
Feb 23, 2011
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Abandoned
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Abstract
The invention accordingly provides a silicon-carbon composite which has at least a proportion of hard carbon and a proportion of silicon powder and is obtained by, under a noble gas atmosphere, a) treating the hard carbon component at least once with high energy in a mechanofusion mixer and b) subsequently adding the silicon powder component thereto and mixing the components, or adding the silicon powder component during step a) and continuing the mechanofusion treatment, and is characterized in that the composite has an average particle size of less than or equal to 12 μm, a proportion of hard carbon of from 5 to 50% by weight and a proportion of silicon powder of from 5 to 50% by weight.
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