CARBON MATERIAL

摘要

PROBLEM TO BE SOLVED: To provide a carbon material useful as the electrode active substance of a nonaqueous electrolyte secondary battery.SOLUTION: Provided is a carbon material in which the interlayer distance din the C axis direction calculated from the diffraction peak from the carbon (002) face by an X-ray wide-angle diffraction method is 0.35 to 0.38 nm, and crystallite thickness Lis 1.1 to 1.8 nm using carbon particles produced by being left under a supercritical liquid using a cyclic compound containing oxygen as a hetero atom as starting raw material.SELECTED DRAWING: Figure 2