| 摘要 |
PROBLEM TO BE SOLVED: To provide an electrode material which has low initial irreversible capacity and with which an electrochemical element having excellent cycle characteristics can be obtained, and a graphite material used for the electrode material.SOLUTION: A graphite material has a specific surface area of 0.1-30 m/g, and, in a spectrum obtained by laser Raman spectroscopy at an excitation wavelength of 532 nm, has an intensity ratio R (I/I) of a peak intensity (I) at around 1,360 cmand a peak intensity (I) at around 1,580 cmof 0.60 or more and 1.30 or less, and an intensity ratio S (I/I) of an intensity (I) at 1,520 cmand a peak intensity (I) at around 1,580 cmof 0.55 or more and 0.70 or less. |
