| 摘要 |
PURPOSE:To obtain excellent practicability and long-term storage property in a wide range from a heavy load to a light load by interposing compound material, which is obtained by forming a perovskite type compound oxide thin film on the surface of the porous material having fine holes of which hole diameter is less than 0.1mum, between the air intake side of a gas diffusion electrode and the inner surface of a battery container. CONSTITUTION:In a battery comprising a gas diffusion electrode 1, in which oxygen is used as the active material, and a battery container having an air intake hole 3 communicated with the outside air, a perovskite type compound oxide thin film 11 at a thickness of 0.01-1.0mum, which is formed on a fine porous base material 4 having hole diameters less than 0.1mum, is interposed between the air intake side of the gas diffusion electrode 1 and the inner surface of the battery container. This compound material made of the perovskite type compound oxide thin film 11 has oxygen penetrability required for obtaining the sufficient discharge characteristic under the heavy load condition and transmission stopping power against steam and carbon dioxide for enduring long-term hot insulation and long-term discharge under the lower moisture or high moisture condition. Storage property of a battery, in which alkali aqueous solution and neutral salt aqueous solution are used as electrolyte, and performance in a long-term usage are thereby improved, and sufficient discharge performance under the wide discharge condition from light load to heavy load can be obtained. |
