Patent ID: 8945431
Filing Date: 2015-02-03
Classification: C01B,H01M,Y02E

Abstract:
1. A method for producing an electrically conductive porous silicon- and/or tin-containing material suitable for the production of anode materials and lithium-ion batteries, wherein: (i) silicon nanoparticles and/or tin nanoparticles and/or silicon/tin nanoparticles are introduced into a polymer matrix based on at least one organic polymer in a first process step, wherein the silicon nanoparticles and/or tin nanoparticles and/or silicon/tin nanoparticles are subjected to a surface modification by alkylsilyl group functionalization before being introduced into the polymer matrix, and (ii) then in a second process step, the polymer matrix containing the silicon and/or tin and/or silicon/tin nanoparticles is carbonized to carbon, wherein the resulting carbon material has a BET surface area of 100 to 1,750 m