Proton Exchange Membrane Fuel Cell Research on Bipolar Plate of Proton Exchange Membrane Fuel Cell With the world’s increasing energy demand and environmental pollution concerns, fuel cells have attracted widespread attention. They are a power generation system that directly and continuously convert chemical energy into electrical energy. It is the fourth type of power generation after hydropower, thermal power and nuclear power. Device. Theoretically, the fuel cell electric heating conversion efficiency can reach 85%~90%. According to different electrolytes, fuel cells can be divided into alkaline fuel cells (AFC), phosphoric acid fuel cells (PAFC), molten carbonate fuel cells (MCFC), solid oxide fuel cells (SOFC) and proton exchange membrane fuel cells (PEMFC) Five categories. Among them, the proton exchange membrane fuel cell is a low-temperature fuel cell (as shown in Figure 1). It has the characteristics of high conversion efficiency, low operating temperature and low pollut...