Analysis of fuel cell membrane electrode sealing materials

DOCBOND

The membrane electrode assembly (MEA) is the core component of the proton exchange membrane fuel cell, which is mainly composed of three key materials: proton exchange membrane, catalyst, gas diffusion layer and frame. The membrane electrode assembly is usually a seven-layer membrane electrode, including a proton exchange membrane, anode catalyst layer and cathode catalyst layer, anode diffusion layer and cathode diffusion layer, and a sealing gasket for sealing and fixing. The bonding and sealing of MEA has a great impact on the performance, life and cost of the fuel cell.

In order to solve this problem, DOCBOND New Materials has designed a five-in-one single-component UV curing adhesive and a seven-in-one reactive hot melt adhesive according to the different membrane electrode processes. These adhesives have excellent adhesion to substrates such as PET, PEN, proton exchange membrane, and carbon paper, and can effectively improve the bonding effect of MEA.

Among them, the DB712H series of seven-in-one membrane electrode adhesive has the advantages of low viscosity, low modulus, good processability, aging resistance/high temperature and humidity resistance/UV radiation resistance/dirt resistance, acid and alkali resistance, sweat resistance, and waterproof (IPX8). It is suitable for bonding anodized aluminum and PBT/GF or optical glass, and can improve the stability and durability of MEA.

The application of these glues not only improves the bonding effect of MEA, but also greatly improves the performance, life and cost of fuel cells. Duco New Materials provides strong support for the development of the fuel cell industry through continuous research and development and innovation.