GAS DIFFUSION ELECTRODE AND LIQUID FUEL CELL USING IT

摘要

PURPOSE:To lengthen the life of a cell by forming at least one layer of a water- repellent organic synthetic resin powder layer or a porous water-repellent organic synthetic resin film on a conductive porous substrate. CONSTITUTION:At least one layer of a water-repellent organic synthetic resin powder layer 4 or a porous water-repellent organic synthetic resin film 5 is formed on a conductive porous substrate 3 installed on a gas diffusion electrode 1 side of a porous reaction layer 2 comprising carbon fine powder in which a catalyst is supported. Although electrode performance is deteriorated when gas side surfaces of the gas diffusion electrode 1 and the conductive porous substrate 3 are wetted with an electrolyte penetrated, the wetting can be protected by installing the synthetic resin powder layer 4 or the synthetic resin film 5. The life of a cell is lengthened.