| 摘要 |
PURPOSE:To prevent the CO2 gas and water vapor in the atmosphere from intruding into a battery for a long period of time by interposing a complex film, which is formed from a film of bisu (3-isocyanopropyle) tetramethyldisiloxane-4,4-diaminofenylether copolymer and a fine porosity film, between the air intake side of a gas diffusion electrode and the inner surface of a battery jar. CONSTITUTION:A battery is equipped with a gas diffusion electrode 1 using oxygen as active substance and a battery jar having an air intake hole 3 leading to the outside air, and an oxygen selective permeative complex film 11 formed from a film 2 of bisu (3-isocyanopropyle) tetramethyldisiloxane-4,4- diaminofenylether copolymer and a fine porosity film 4 supporting it is interposed between the inner surface of the battery jar and the air intake side of the gas diffusion electrode 1 of this battery. This permits provision of excellent performance in practical application, fine anti-leak property, and a long-time storing characteristic. |
