▎ 摘　　要

NOVELTY - Method for producing a thermally stabilized agglomerated lignin-carbon composite material, involves (a) providing an agglomerated lignin-carbon composite material having a particle size distribution such that at least 80 wt.% agglomerates have a diameter of 0.2-5 mm, where the agglomerated lignin-carbon composite material comprises lignin and at least one carbon additive, and (b) heating the agglomerated lignin-carbon composite material to a temperature of 140-250° C for a period of at least 30 minutes so as to obtain a thermally stabilized agglomerated lignin-carbon composite material. USE - The method is used for producing thermally stabilized agglomerated lignin-carbon composite material which is used for producing granular carbon-carbon composite material and carbon-carbon composite material powder. The carbon-carbon composite material powder is used as active material in negative electrode of a non-aqueous secondary battery (all claimed). ADVANTAGE - The method avoids lignin undergoes plastic deformation and melting, and aggressive swelling and foaming during heating, improves carbon enriched material starting from lignin, and mechanical and thermal processability of lignin, allows heat treatment of lignin while retaining shape and dimension, is scalable and suitable for large-scale manufacturing, and improves thermal resistance of agglomerated lignin-carbon composite material by reducing melting/swelling behaviour upon heating which in turn improves processability on an industrial scale, and processability of lignin. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: the thermally stabilized agglomerated lignin-carbon composite material obtainable by the method; a method for producing a granular carbon-carbon composite material, involving (1) providing a thermally stabilized agglomerated lignin-carbon composite material obtainable by the method, and (2) subjecting the thermally stabilized agglomerated lignin-carbon composite material to heat treatment at one or more temperatures of 300-1500° C, where the heat treatment is carried out for a total time of 30-10 hours, so as to obtain a granular carbon-carbon composite material; the granular carbon-carbon composite material obtainable by the method; and the carbon-carbon composite material powder obtainable by the method.