Principle of hydrogen battery

Gas is formed in the reaction of electrolyte electrolysis to provide electric energy.

Hydrogen battery technology is a common alternative energy source in automobiles, also known as "fuel cell" technology. Fuel cell is an energy conversion device, which converts the electrochemical energy of fuel into electrical energy. Similar to a battery, it is also an electrochemical power generation device, so it is called a fuel cell. The corresponding fuel cell using hydrogen as fuel is a hydrogen fuel cell. It can be understood as the reverse reaction of water electrolysis into hydrogen and oxygen. Therefore, the reaction process is clean and efficient. Because it is not limited by the thermal efficiency of about 42% of Carnot cycle used in traditional engines. The efficiency of hydrogen fuel cells can easily reach more than 60%.