| 摘要 |
PURPOSE:To obtain a thin air electrode excellent in the storage performance by preventing the waste vapor or carbon dioxide in the air from infiltrating into the electrode proper so as to enable an over-load discharge for a long time. CONSTITUTION:A water repellent layer is formed by an evaporation method or a spattering method on the gas side surface of a porous electrode proper having the electrochemical reduction capability against oxygen gas and current collector function concurrently and further a thin film of metal oxide with a rutile type crystal structure is formed on said water repellent layer by the evaporation method or spattering method, or a water repellent layer is formed by the evaporation method or spattering method on one side surface of a porous film having fine holes with a bore diameter of 0.1mum or less and further a thin film of metal oxide with a rutile type crystal structure is formed on said repellent layer by the evaporation method or spattering method, next the other side surface of said porous film is stuck by pressure to the gas side surface of the porous electrode proper having the electrochemical reduction capability against oxygen gas and current collector function concurrently. According to this constitution, the whole electrode is made thin and the water vapor or carbon dioxide in the air is prevented from infiltrating into the electrode proper, thus enabling an over-load discharge for a long time. |
