We have investigated the phase composition of lithiated samples of nanoporous carbons (NPCs) obtained from carbides (SiC, TiC, Mo 2 C) by chlorination. Lithium insertion was produced at the temperature range 100-200 o C via vacuum deposition and diffusion. The effect of the deposition and diffusion duration on the phase composition has been studied. Phase composition was found to be dependent on the relationship between deposition and diffusion rates. The condition for producing the samples uniformly impregnated by lithium and containing intercalation phases only was determined.