| 摘要 |
PROBLEM TO BE SOLVED: To provide a carbon material for a lithium ion secondary battery capable of providing the lithium ion secondary battery in which the charge and discharge capacity density and the charge and discharge cycle characteristics are greatly improved, a negative electrode mixture for the lithium ion secondary battery, a negative electrode for the lithium ion secondary battery and the lithium ion secondary battery. SOLUTION: A method for manufacturing a carbon material for a lithium ion secondary battery comprises: a mixing step for obtaining a mixture by mixing a phenol resin with a resin composition containing silica particles; a spraying step for spraying the mixture obtained from the mixing step to form droplets; a first heat treatment step for forming a carbon precursor by applying first heat treatment to the droplets obtained from the spraying step; and a second heat treatment step for forming a carbon material containing carbon and silicon oxide represented by SiOx(0<X<2) by applying second heat treatment at a temperature being higher than that of the first heat treatment step to the carbon precursor obtained from the first heat treatment step. COPYRIGHT: (C)2013,JPO&INPIT |
