COMPOSITE NEGATIVE ELECTRODE MATERIAL FOR METAL-AIR ALL-SOLID-STATE SECONDARY BATTERY, AND METAL-AIR ALL-SOLID-STATE SECONDARY BATTERY INCLUDING THE SAME

摘要

PROBLEM TO BE SOLVED: To provide a composite negative electrode material for a metal-air all-solid-state secondary battery, high in power generation performance and good in electrochemical characteristics.SOLUTION: A composite negative electrode material for a metal-air all-solid-state secondary battery of the present invention includes: first metal or an oxide of the first metal which reacts with hydroxide ions to emit electrons; and a sulfide MaSb of second metal (where M is the second metal and represents an element in the group 1, group 8, group 14 or group 15 of the periodic table, and a and b are values determined so as to become electrically neutral according to the valance of the M).