| abstract |
The present invention provides an electrode material comprising at least one of metal compound powder and carbon powder, the powder having an average particle size of 50 μm or less and an activation energy E α of 0.05 eV or less. Further, the powder preferably has hopping conduction characteristics at room temperature of 25° C. Furthermore, the powder preferably has an amount of oxygen defects of 1×10 18 cm −3 or more. Still further, the powder preferably has a carrier density of 1×10 18 cm −3 or more. Due to above structure, there can be provided an electrode material having a high storage capacity and a high charge/discharge efficiency. |