Hefei Sinopower Technologies Co., Ltd
The main structure of pem electrolyzer is similar to fuel cell stack, which is divided into membrane electrode, electrode plate and gas diffusion layer. The anode of the PEM electrolytic cell is in a strongly acidic environment (pH≈2) and the electrolysis voltage is 1.4~2.0 V. Most non-precious metals will corrode and may combine with the sulfonate ions in the PEM electrolytic cell, thereby reducing the ability of the PEM to conduct protons.
When we use electrolyzed water to produce hydrogen, we must have a lot of knowledge points that need to be understood, and when purchasing pem electrolyzers, we can also choose different brands from the aspects of product quality, market price, consumer recognition, etc., In order to allow everyone to buy high-quality products, let's talk about how to choose a pem electrolyzer manufacturer?
Hydrogen production by electrolysis of water in pem electrolytic cell means that the DC power supply enters the electrolytic cell filled with electrolyte solution, and the water produces electrochemical reaction on the metal electrode, which can be decomposed into hydrogen and oxygen, and the whole process can complete zero emission. In the overall production chain, the pem electrolyzer is the main medium of the facility.
The pem electrolyzer factory believes that the electrolysis of water to produce hydrogen means that the DC power supply enters the electrolyzer filled with the electrolyte solution, and the water produces an electrochemical reaction on the metal electrode, which can be decomposed into hydrogen and oxygen, and the whole process can complete zero emission.
The high-pressure chamber of the hydrogen valve is connected with the steel cylinder, and the low-pressure chamber is the gas outlet and leads to the use system. The indication of the high pressure gauge is the pressure of the gas stored in the cylinder. The outlet pressure of low pressure gauge can be controlled by adjusting screw.
The so-called photovoltaic hydrogen production is not a new concept, and its research mainly focuses on the thermochemical hydrogen production, photochemical decomposition hydrogen production, photocatalytic hydrogen production, artificial photosynthesis hydrogen production and biological hydrogen production. Among them, the technology of combining photovoltaic power generation and water electrolysis to produce hydrogen into a system is the mainstream development direction.
During the operation of the fuel cell, in order to ensure that the electrode sidewall can diffuse uniformly in the active area, the gas must be supplied in excess, and the excess gas cannot be directly discharged after reaction to avoid waste.