| 摘要 |
PURPOSE:To familiarize the electrolyte with an electrode reaction layer by performing a preliminary discharge at a low load after impregnating the electrolyte so as to transfer the electrolyte from a matrix layer to the electrode reaction layer in a matrix type fuel cell. CONSTITUTION:After a block cell is heated, a preliminary discharge is performed at a low load, thus the electrolyte being held in a matrix is expanded by heat and transferred to an electrode reaction layer, in addition, water is generated in fine holes of the electrode reaction layer due to the electrochemical reaction in the cell, creating a condition that the electrolyte is apt to move to part of the electrode reaction layer, thereby part of the electrolyte is transferred to the electrode reaction layer so that the electrode reaction layer is familiarized with the electrolyte. By starting a regular operation after feeding the electrolyte which is lacking in the matrix, stable electrical characteristics can be maintained for a long time with the electrolyte not being transferred to the electrode reaction layer. |
