NEGATIVE ELECTRODE MATERIAL FOR NONAQUEOUS SECONDARY BATTERY, ITS MANUFACTURING METHOD, AND SECONDARY BATTERY USING IT

PROBLEM TO BE SOLVED: To provide a negative electrode material for a nonaqueous secondary battery capable of providing high capacity per mass and per volume in practical doping time, and to provide a method of manufacturing the negative electrode material for the nonaqueous secondary battery with simple production and high yield. SOLUTION: The negative electrode material for the nonaqueous secondary battery is made of polycyclic aromatic hydrocarbon manufactured by heat reaction of a raw material containing naphthalene pitch as a main component, has an atomic ratio of hydrogen/carbon of 0.23-0.33, a specific surface area by a BET process of 0.1-30 m2/g, a real density of 1.40 g/cm3, and an average particle size of 10 μm or less. The method of manufacturing the negative electrode material for the nonaqueous secondary battery is that the raw material containing naphthalene pitch as the main component is heat-reacted without conducting non-fusion treatment to manufacture the polycyclic aromatic hydrocarbon. COPYRIGHT: (C)2005,JPO&NCIPI