Nonaqueous secondary battery carbon material for a negative electrode for a nonaqueous secondary battery and the nonaqueous secondary battery

PROBLEM TO BE SOLVED: To provide a carbon material which allows for enhancement in charge/discharge rate characteristics, enhancement in cycle by improvement of a conductive path, enhancement in retainability of electrolyte, enhancement in electrolyte-immersibility, and low irreversible capacity.SOLUTION: The carbon material for the negative electrode of a nonaqueous secondary battery is produced by performing nonmechanical treatment so that the pore volume ratio ΔP(=P(B)/P(A))of pore distribution by 250-2500 nm Hg porosimetry analysis of a carbon material (A) before treatment and a carbon material (B) after treatment is 1-10.