Hydrogen fuel cell is a chemical energy into electrical energy of the device, with high efficiency, quiet, environmentally friendly and so on. Hydrogen fuel cells using polymer electrolyte membranes have been used in vehicles today. Hydrogen fuel cell by two electrochemical reactions to generate electricity: the cathode hydrogen is oxidized in the anodic oxygen is reduced. From the proton through the polymer membrane to complete the operation of the circuit, this battery is used PTFE membrane Nafion for the diaphragm, can be used in the low temperature of 80 ℃. Nafion membranes have high proton conductivity and long lifetime. Hydrogen fuel cell bulky, bulky hydrogen storage containers, so direct methanol fuel cell has aroused great interest. Because the DMFC is more suitable for making portable batteries. Nafion membrane because of high methanol permeability, does not apply to DMFC, and very expensive. So the development of proton conductivity close to Nafion membrane, with low methanol permeability. And in the low humidity with high conductivity can work at high temperatures while the cheaper diaphragm has been the pursuit of the goal of the developer.