The invention specifically relates to a method for producing a
graphite negative-
electrode material by using needle
coke, and the negative-
electrode material, belonging to the field of
graphite negative-
electrode materials. According to the method, needle
coke is subjected to crushing, spheroidizing, screening, batching,
coating, graphitization and screening successively so as to obtain the
graphite negative-
electrode material. In the step of batching, 10 to 15 parts of needle
coke with a particle size in a range of 10 to 15 [mu]m, 50 to 55 parts of needle coke with a particle size in a rangeof 15 to 25 [mu]m and 20 to 35 parts of needle coke with a particle size in a range of 25 to 30 [mu]m. The invention has the beneficial effects that needle coke with three different particle sizes isused for preparing the carbon negative-
electrode material, and small-particle-size needle coke which is large in specific surface area, short in the path that
lithium ions take to enter particle centers and small in resistance is mixed with larger-particle-size needle coke which is small in specific surface area, long in the path that
lithium ions take to enter particle centers and large in resistance, so the advantages of the small-particle-size needle coke and the larger-particle-size needle coke complement each other; and thus, the coated integral needle coke has large tap density and smallspecific surface area, and better facilitates preparation of the negative-
electrode material with excellent performance.