METHOD FOR PRODUCING A SILICON/CARBON COMPOSITE MATERIAL, MATERIAL PRODUCED THEREBY, AND ELECTRODE, ESPECIALLY NEGATIVE ELECTRODE, COMPRISING SAID MATERIAL

摘要

The invention relates to a method for preparing a silicon/carbon composite material consisting of silicon particles coated with carbon, whereby the following successive steps are carried out: silicon particles are mixed with a solution of a polymer without oxygen in a solvent, by which means a dispersion of silicon particles is obtained in the polymer solution; the dispersion obtained in step a) is subjected to an atomisation-drying operation by which means a silicon/polymer composite material consisting of silicon particles coated with the polymer is obtained; and the material obtained in step a) is subjected to pyrolysis, enabling the production of the silicon/carbon composite material consisting of silicon particles coated with carbon.