ELECTRODE MATERIAL AND SECONDARY BATTERY

PROBLEM TO BE SOLVED: To remarkably improve the battery density by using a sulfide material having a tetrazole ring for the electrode material of a secondary battery. SOLUTION: A sulfide material having a tetrazole ring means a compound directly bonded with sulfur atoms to the tetrazole ring and a material containing the compound, and the energy density is high. The sulfide electrode material can be used by introducing the methyl group into nitrogen atoms, it is an active material having no conductivity, and it is mixed with an electron conductive material or an ion conductive material to form a positive electrode material. Metal powder of carbon or titanium is used as the electron conductive material of a battery component (coin type cell), and a solid electrolyte such as polyethylene oxide dissolved with electrolyte salt is used as the ion conductive material. An alkali metal is used for a negative electrode material.