| abstract |
A graphite material includes a plurality of graphite particles and a plurality of pores which form a microstructure. When a cross-section of the microstructure is observed with a scanning electron microscope, the number of the pores appearing on the cross-section is more than 250 or more per 6000 μm 2 , an average area of the pores appearing on the cross-section is 5 μm 2 or less, and an average aspect ratio of the pores appearing on the cross-section is 0.55 or less. |