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What is a hydrogen fuel cell


A hydrogen fuel cell is a power generation device that directly converts the chemical energy of hydrogen and oxygen into electrical energy. The basic principle is the reverse reaction of water electrolysis, supplying hydrogen and oxygen to the anode and cathode respectively. After the hydrogen diffuses out through the anode and reacts with the electrolyte, electrons are released to the cathode through the external load. Hydrogen fuel cells have the characteristics of no pollution, no noise and high efficiency, and are widely used in aviation, automobile and aircraft fields.

The following are the specific characteristics of hydrogen fuel cells:

1. No pollutionHydrogen fuel cells do not pollute the environment. It generates electricity through electrochemical reactions, rather than combustion (gasoline, diesel) or energy storage (battery), which are the most typical traditional backup power solutions. Combustion releases pollutants like COx, NOx, SOx gases and dust. If the hydrogen is produced through renewable energy sources (photovoltaic panels, wind power, etc.), then the entire cycle is a process that produces no harmful emissions at all.

2. No noise

The hydrogen fuel cell operates quietly, and the noise is only about 55dB, which is equivalent to the sound of a normal conversation. This makes the fuel cell suitable for installation indoors, or outdoors where noise is limited.

3. High efficiency

The power generation efficiency of hydrogen fuel cells can reach more than 50%, which is determined by the conversion properties of fuel cells, which directly convert chemical energy into electrical energy without intermediate conversion between thermal energy and mechanical energy (generator).

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