METHOD, POWDER, FILM & LITHIUM ION BATTERY
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United States of America Patent
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Oct 1, 2015
app pub date -
Oct 17, 2013
filing date -
Oct 17, 2012
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Abstract
Method for producing a powder of particles comprising a core region (26) and a shell region (28), said core region (26) comprising amorphous or microcrystalline Silicon and said core region (26) comprising a passivating material. The method comprises the steps of supplying a reactant gas (12) containing Silicon to a reaction chamber (16) of a reactor, and heating said reactant gas (12) to a temperature sufficient for thermal decomposition or reduction of the reactant gas (12) to take place inside the reaction chamber (16) to thereby produce nano- to micro-scale particles of amorphous or microcrystalline Silicon, and thereafter coating said particles with passivating material.
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