| abstract |
An air electrode for a metal-air battery that includes the air electrode, a negative electrode, and an electrolyte provided between the air electrode and the negative electrode. The air electrode includes non-crosslinking oxygen-containing M x O y -based glass that contains a non-crosslinking oxygen that is an oxygen (O) that bonds to M constituting the M x O y -based glass and bonds to Ag, M x O y of the M x O y -based glass being at least one kind selected from the group of B 2 O 3 , P 2 O 5 , SiO 2 , GeO 2 , and Al 2 O 3 . |