Nanoparticulate silicon carbide and electrode comprising nanoparticulate silicon carbide

The present invention relates to nanoparticulate stoichiometric doped or non-doped silicon carbide SiC in the form of secondary particles, which consist of agglomerates of SiC primary particles, wherein the primary particles have a particle size in the range of 40-100 nm and the secondary particles have an average size of 1-10 μm. Furthermore, the present invention relates to an anode of a secondary lithium-ion battery containing the SiC according to the invention and a secondary lithium-ion battery having this anode.