MATERIAU COMPOSITE SILICIUM/CARBONE, PROCEDE DE SYNTHESE ET UTILISATION D'UN TEL MATERIAU

摘要

The invention relates to a silicon/carbon composite material, to a method for the synthesis thereof and to the use of such a material. The silicon/carbon composite material is formed by an aggregate of silicon particles and of carbon particles, in which the silicon particles and the carbon particles are dispersed. The carbon particles are formed by at least three different carbon types, a first type of carbon being selected from among non-porous spherical graphites, a second type of carbon being selected from among non-spherical graphites and a third type of carbon being selected from among porous electronically-conductive carbons. The first and second carbon types each have a mean particle size ranging between 0.1 mum and 100 mum and the third carbon type has a mean particle size smaller than or equal to 100 nanometers.