Advantages of PEM Pure Water Electrolysis Hydrogen Production Equipment and Methods for Cost Reduction and Efficiency Enhancement

Given the current situation of PEM electrolyzer, the key to their large - scale application lies in reducing costs and optimizing performance. At present, cost reduction can be achieved by optimizing the catalyst system to reduce costs, using highly conductive support materials, and replacing them with high - performance proton exchange membranes.

I. Cost Reduction and Optimization of PEM Electrolyzer

1. Development and Application of Low - Noble - Metal Electrocatalyst 

①　Reducing Manufacturing Costs
By reducing the content of noble metals (platinum, iridium, ruthenium) and improving the efficiency of the preparation process, the manufacturing costs of PEM electrolyzer electrocatalysts can be reduced, enhancing the market competitiveness of products.

②　Improving Stability
The stability of PEM electrolyzer electrocatalyst can be improved by adding non - metallic element doping and improving the crystal structure, making them more stable and reliable during actual use.

③　Enhancing Performance
The performance of PEM electrolyzer electrocatalysts can be enhanced by adjusting the electrocatalytic activity of non - noble metals and increasing the specific surface area, reducing the activation energy barrier of the reaction and increasing the reaction rate.

2.Design and Preparation of Highly Conductive Support Materials

①　Improving Conductivity
The conductivity of PEM electrolyzer electrocatalysts can be improved by selecting appropriate support materials and increasing the contact area between the catalyst and the support material, reducing the resistance loss during the reaction.

②　Increasing Support Strength
The support strength of PEM electrolyzer electrocatalysts can be increased by enhancing the strength and toughness of the support material and improving the preparation process, preventing the catalyst from cracking or detaching during the reaction.

③　.Adjusting the Microstructure
The microstructure of PEM electrolyzer electrocatalysts can be adjusted by regulating the microstructure of the support material and changing the transport path of reactants, further optimizing the transport and reaction processes of reactants.

3.Optimization and Improvement of Proton Exchange Membrane Structure
At present, although many domestic manufacturers are researching proton exchange membranes, most industrial - grade applications and industrial projects still rely on products from the United States and other countries. Therefore, it is very important to carry out optimization, upgrading, and transformation of proton exchange membranes.

①　.Selective Permeable Membrane
Gas permeation can be reduced by introducing a selective permeable membrane. This membrane only allows the reaction gas to pass through while blocking the permeation of other gases.

②　Sandwich Structure
Gas permeation can be reduced by changing the sandwich structure. For example, a porous cushion can be introduced to divide the PEM into multiple small regions, reducing the cross - over of gas products.

4.Gas Diffusion Coefficient
Gas permeation can be reduced by lowering the gas diffusion coefficient. This can be achieved by increasing the rigidity of the polymer chain, introducing reinforcing materials, and improving the processing conditions.

Ⅱ.Optimization of Slurry Composition and Enhancement of Physical Properties

1.Optimization of Slurry Composition
Adjust the catalyst, carrier components, ionomers, and other additional materials in the slurry according to requirements to optimize its performance.

2.Enhancement of Physical Properties
The quality of the MEA can be improved by enhancing physical properties such as the particle diameter, rheology, and Zeta potential in the slurry.

3.Introduction of Additional Functions
The lifespan and reliability of the MEA can be improved by introducing additional functions such as antioxidants and reducing agents.

Ⅲ.Improvement and Optimization of MEA Processing Technology Measures

1.Selection of Coating Methods
Select appropriate coating methods such as electrochemical deposition, ultrasonic spraying, and transfer printing according to requirements to optimize the catalytic performance of the MEA.

2.Modification of Coating Equipment
Modify the existing coating equipment according to requirements to achieve roll - to - roll coating, etc., to meet industrial demands.

3.Monitoring of Coating Film Quality
Establish a coating film quality inspection system to monitor the quality of the coating film in real - time and implement feedback control to ensure the quality of the MEA.