가속 시험법에 의한 연료전지 전극 특성

Electrode Performance by Accelation Testing in Phosphoric Acid Fuel Cell

The electrodes for Phosphoric Acid Fuel Ceil were fabricated as a condition of PTFE contents in electrocatalyst layer and sintering temperature in the range of 25 -- 65 wt% and 310 -- $390^{\circ}C$, respectively. For the fabricated electrode, the accelation testing of cathode half cell at open circuit potential was investigated. While the performance of electrode showed maximum at the low level of PTFE contents in the initial stage of accelation testing, the maximum performance was shifted to higher PTFE contents of 45wt% after 24hrs accelation testing.