On the Cell Voltage Decay factor of Phosphoric Acid Fuel Cell

Abstract

It is desirable to establish the acceleration method for phosphoric acid fuel cell durability evaluation in order to promote the PAFC's utilization. Test method may be established through clarifying the mechanisms of deterioration on reaction part of fuel cell. Parametric survay tests were conducted using small size single cells and temperature, current density, pressure were selected as factors which effect on cell voltage deterioration. It was found that the temperature is the key factor which accelerate the cell voltage decay. Fuel cell deterioration's mechanisms and acceleration's factor are described below.