Hydrogen is an abundant, clean, and carbon-free resource with a high heat value. It can efficiently preserve energy, generate heat and electricity.Therefore, it is regarded as the most ideal renewable energy resource compared with traditional nonrenewable fossil fuels. PEM electrolysis is a technology that dissociates oxygen and hydrogen  from water molecules under the effect of direct current. PEM fuel cell is a device that converts chemical energy to electrical energy through electrochemical reaction. Kaida provides crucial catalysts for multiple professional PEM electrolysis and fuel cell manufacturers.