METHOD, POWDER, FILM & LITHIUM ION BATTERY

摘要

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.