Influence of the fuel cell operating conditions and the MEA property on the amount of methanol crossover of the direct methanol fuel cell

摘要

The quantitative analysis of the methanol crossover phenomenon which is one of the causes for the low output power performance in Direct Methanol Fuel Cell (DMFC) with Nafion membranes was performed. Specifically, continuous measuring of the exhaust gas composition of the cathode was carried out by changing the operating conditions such as the cell temperature, the cell pressure and the property of MEA (Membrane Electrode Assembly) to be used in DMFC. Then, the change of the amount of methanol crossover was investigated.