Intercalation of silicon and/or tin into porous carbon substrates
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United States of America Patent
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Feb 3, 2015
Grant Date -
Dec 22, 2011
app pub date -
Jul 14, 2009
filing date -
Jul 15, 2008
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Abstract
The invention relates to a process for producing an electrically conductive, porous, silicon- and/or tin-containing carbon material which is suitable in particular for the production of an anode material, preferably for lithium ion batteries; in a first step of the process, preferably crystalline silicon nanoparticles and/or tin nanoparticles and/or silicon/tin nanoparticles are introduced into a matrix based on at least one organic polymer, being more particular dispersed therein, and subsequently, in a second step of the process, the resultant polymer matrix containing the silicon, tin and/or silicon/tin nanoparticles is carbonized to form carbon.
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