| 摘要 |
The present invention provides a graphite composite material obtained by mixing graphite material 1 having diversity in the sizes of optical anisotropic structure and optical isotropic structure, the ratio thereof, and crystal direction, and graphite material 2 having a rhombohedron structure, which is different from graphite material 1 and has an average interplanar spacing d 002 of plane (002) of 0.3354 nm to 0.3370 nm measured by the powder X-ray diffraction method and Lc of 100 nm or more. Use of the graphite composite material in the electrodes for the secondary battery can make the secondary battery be excellent in charge-discharge cycle characteristics and the large current load characteristics. |
