During the last few years, significant progress in cost, durability and performance of fuel cells has been made, but the remaining technical and economic issues must be solved before this technology can be commercialised. Several authors have focused on the optimisation of the stack design and the fuel cell configuration. Other aspects that require improvement include the structure and composition of the catalyst layer. For the electrolyte, many efforts have been made to develop a PEM with high conductivity at low relative humidity to reduce the cost and complexity of the system. Besides, the development of non-volatile and non-flammableelectrolytes is important in order to improve the safety and durability of fuel cells. Consequently, several studies have incorporated ionic liquids as electrolytes in PEMFCs under anhydrous conditions.
đang được dịch, vui lòng đợi..
