| 摘要 |
PURPOSE:To stabilize and increase cell voltage by forming an electrolyte barrier layer also serving as a current collecting layer on a porous conductive substrate side in addition to water repellent treatment of the substrate. CONSTITUTION:In a gas diffusion electrode of a fuel cell, an electrolyte barrier layer 3 which also serves as a current collecting layer is formed on a porous conductive substrate 1 side in addition to water repellent treatment of the substrate 1. Water repellent capability on the substrate side is increased and micropores in the layer 3 prevent permeation of electrolyte. Since electrolyte in an air electrode is steadily retained, cell voltage is high and performance is steady. |
