Anion exchange membrane, preparation method thereof, and hydrogen production device for electrolyzing water

By designing the support layer and homogenization layer, the resin-to-plasticizer ratio and porosity of the porous substrate in the anion exchange membrane were optimized, solving the problems of mechanical stability and film uniformity of the anion exchange membrane under high pressure, and achieving high-efficiency anion exchange membrane performance and cost control.

CN122169156APending Publication Date: 2026-06-09HUIZHOU YIWEI HYDROGEN ENERGY CO LTD
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HUIZHOU YIWEI HYDROGEN ENERGY CO LTD
Filing Date
2026-01-20
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Existing anion exchange membranes lack mechanical stability and gas permeability under high pressure, and are also costly. Inhomogeneous film formation leads to performance degradation.

Method used

The structure employs a support layer and a homogeneous layer. The support layer consists of a porous substrate and anion exchange resin, while the homogeneous layer contains anion exchange resin and a plasticizer. By optimizing the ratio of resin to plasticizer and the porosity of the porous substrate, the filling effect and mechanical strength are improved, and the surface resistivity is reduced.

Benefits of technology

This technology improves the mechanical strength and pressure resistance of anion exchange membranes under high pressure, reduces sheet resistance and film uniformity, and ensures the overall performance and production cost of anion exchange membranes.

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Abstract

This application provides an anion exchange membrane and its preparation method, as well as a water electrolysis hydrogen production device, belonging to the field of water electrolysis hydrogen production technology. The anion exchange membrane includes a support layer and a homogeneous layer located on one side of the support layer's thickness direction. The homogeneous layer includes anion exchange resin and a plasticizer, and the support layer includes a porous substrate and anion exchange resin and plasticizer filled in the porous substrate. The anion exchange resin includes compounds represented by Formula I. The plasticizer includes N-ethyl-p-toluenesulfonamide. The anion exchange membrane provided by this application possesses good mechanical strength and pressure resistance, reduces film surface resistivity, ensures uniform thickness throughout, and exhibits excellent overall performance. Its preparation is cost-effective and suitable for large-scale production applications.
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