| 摘要 |
PURPOSE:To attain stabilized battery performance and long life by adjusting the amount of steam to be supplied to a fuel battery body and by controlling an internal resistance value. CONSTITUTION:During operation of fuel battery body 1, a controller 14b having received a measuring value signal of an electromotive force measuring apparatus 11 controls the fuel gas and oxidizing agent gas supply regulator valves 4, 5 and regulates the flow of supply in accordance with the specified operation program. The controller 14b having received measured value signals from the internal pressure measuring apparatus 9, internal temperature measuring apparatus 10 and internal resistance measuring apparatus 12 compares the volume of said gas with given volume of phosphoric acid and controls the internal resistance in the specified range by controlling independently the steam supply valves 15, 16. Fluctuation of the volume of phosphoric acid can be controlled with in the specified range and the battery performance and reliability can be maintained. |
