CARBON MATERIAL FOR NONAQUEOUS SECONDARY BATTERY NEGATIVE ELECTRODE, NEGATIVE ELECTRODE FOR NONAQUEOUS SECONDARY BATTERY, AND NONAQUEOUS SECONDARY BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a carbon material for a nonaqueous secondary battery negative electrode having excellent stability, high output, high capacity, small irreversible capacity, and excellent cycle characteristics, and also to provide a nonaqueous secondary battery using the same.SOLUTION: Disclosed is a carbon material for a nonaqueous secondary battery negative electrode containing a composite carbon particle (A) including a silicon element and a graphite particle (B). The carbon material for the nonaqueous secondary battery negative electrode is characterized in that the graphite particle (B) is a particle in which a graphite particle (C) and an amorphous material are compounded or the graphite particle (C) and a graphitic material different in orientation from the graphite particle (C) are compounded.