| abstract |
An electrode material comprising at least one powder of a metal compound powder and a carbon powder, wherein the powder has an average particle size of 50 μm or less and an activation energy E α of 0.05 eV or less. It is. Moreover, it is preferable that the powder has hopping conduction characteristics at room temperature (25 ° C.). Moreover, it is preferable that the oxygen deficiency amount of the powder is 1 × 10 18 cm −3 or more. Moreover, it is preferable that the carrier density of a powder is 1 * 10 < 18 > cm < -3 > or more. According to the above configuration, an electrode material having a high storage capacity and high charge / discharge efficiency can be provided. |