| 摘要 |
A metal-air battery is a secondary battery that includes a positive electrode, a negative electrode, an electrolyte layer, and an air introduction pipe. The positive electrode is a porous member having a substantially cylindrical bottomed shape and includes a positive electrode supporter made of alumina, a positive electrode conductive layer made of a perovskite type oxide having electrical conductivity, and a positive electrode catalyst layer made of manganese dioxide. The negative electrode includes a negative electrode supporter made of stainless steel and a negative electrode conductive layer made of lithium or a lithium alloy. The metal-air battery can realize the positive electrode that contains no carbon by forming the positive electrode catalyst layer on the positive electrode conductive layer made of a perovskite type oxide. This enables prevention of the generation of lithium carbonate on the positive electrode during discharge, thus reducing the charge voltage of the metal-air battery. |
