A fuel cell is generally understood as a device that converts the chemical energy of fuel into electrical energy, and its fuel is divided into hydrogen, methanol, ethanol, methane, etc. At present, hydrogen fuel cells are relatively mainstream at home and abroad, that is, using hydrogen as fuel, not only to replace oil, but also to replace the current lithium batteries, and fuel cells to replace engines. Chinese officials have always given greater support to the research and development of fuel cells. As early a