The basic principle of hydrogen fuel cells is the reverse reaction of water electrolysis, with hydrogen and oxygen supplied to the anode and cathode, respectively. Hydrogen diffuses through the anode and, after the electrolyte reacts, the released electrons reach the cathode via an external charge.
Hydrogen fuel cells do not pollute the environment. It works by electrochemical reactions instead of combustion (petrol and diesel) or energy storage (battery). The most common traditional backup power solution releases COx, NOx, SOx and other polluting gases and dust when burned. Fuel only produces water and heat. If renewable energy is used to produce hydrogen, the entire cycle is a complete process that does not produce harmful substances.
Strictly speaking, a hydrogen fuel cell is a delectricity production device. Like a power plant, it is an electrochemical power generation device that directly converts chemical energy into electrical energy. In addition, the electrodes of hydrogen fuel cells are made of special porous materials, which is a key technology of hydrogen fuel cells. It not only provides a large contact surface for gas and electrolyte, but also plays a catalytic role in the battery's chemical reactions. The fuel cell operates quietly, with only about 55 dB of noise, which is equivalent to the level of a normal phone call. This makes the fuel cell suitable for indoor or outdoor installations where noise is limited.
One million subsidies for car purchases