AIR ELECTRODE FOR METAL AIR BATTERY AND METAL AIR BATTERY

摘要

PROBLEM TO BE SOLVED: To provide a metal air battery capable of satisfying both discharge capacity and cycle characteristics.SOLUTION: An air electrode for a metal air battery is an air electrode constituting a metal air battery including an air electrode using oxygen as an active material, a negative electrode, and an electrolyte layer interposed between the air electrode and the negative electrode. The air electrode for a metal air battery contains at least an alloy catalyst of gold and nickel and a carbon material supporting the alloy catalyst, and the ratio of the alloy catalyst relative to the total amount of the alloy catalyst and the carbon material is 5-20 wt.%. A metal air battery includes the air electrode.