Development trend of hydrogen production by water electrolysis
Hydrogen production by electrolysis of water is the main way to produce hydrogen from renewable energy, and
PEM electrolysis of water to produce hydrogen is expected to become a mainstream development trend.
Renewable energy electrolysis of water to produce hydrogen is to connect the electricity generated by renewable
energy sources such as wind and solar power to the electrolytic cell to electrolyze water. The energy is supplied
through electric energy, causing the water molecules in the electrolytic cell to undergo electrochemical reactions on
the electrodes and decompose into hydrogen. and oxygen, for storage or transportation.
According to different electrolytes, water electrolysis hydrogen production technology can be divided into four
categories, namely alkaline (AWE) water electrolysis hydrogen production, proton exchange membrane (PEM)
water electrolysis hydrogen production, and solid polymer anion exchange membrane (AEM) water electrolysis
Hydrogen production, solid oxide electrolysis (SOEC) water electrolysis to produce hydrogen.
Hydrogen energy is an efficient and clean energy. The development of the hydrogen energy industry is of great
significance to building a clean, low-carbon, safe and efficient modern energy system, achieving the "double
carbon" goal, and promoting high-quality economic and social development. In recent years, the hydrogen energy
industry has received great attention from the country. The relevant legal system, industrial policies and standards
have been gradually improved, technological innovation has achieved remarkable results, and infrastructure
construction and vehicle promotion have begun to take shape. The China Hydrogen Energy Alliance predicts that
by 2050, hydrogen energy will account for at least 10% of my country's terminal energy system, and the annual
output value of the industry chain will be approximately 12 trillion yuan, becoming a new growth pole leading
economic development.