Fuel cell proton exchange sealing membrane preparation method and system

Abstract

The invention relates to a fuel cell proton exchange sealing membrane preparation method and system, and the system comprises a base membrane supply unit which supplies and transmits a proton exchange membrane to a bonding unit; a glue layer supply unit, used for supplying and conveying a sealing glue layer to the bonding unit, the glue layer supply unit being provided with a die-cutting machine, and a central hollow part of a sealing adhesive layer being formed, the glue layer supply unit comprising a first glue layer supply unit and a second glue layer supply unit and used for providing a first sealing glue layer for bonding the upper surface of the proton exchange membrane and a second sealing glue layer for bonding the lower surface of the proton exchange membrane; and a bonding unit, used for bonding the first sealing adhesive layer and the second sealing adhesive layer to the upper surface and the lower surface of the proton exchange membrane to form a proton exchange sealing membrane. The transverse length of the sealing adhesive layer is larger than that of the proton exchange membrane, and after bonding, the sealing adhesive layer seals the transverse edge of the proton exchange membrane, so that the use cost of the proton exchange membrane is reduced, and the sealing performance of the proton exchange membrane and the safety of a membrane electrode are improved.

Description

technical field [0001] The invention relates to the field of proton exchange membranes of fuel cells, in particular to a preparation system and method for proton exchange sealing membranes of fuel cells. Background technique [0002] Proton exchange membrane fuel cell (PEMFC) is a chemical device that directly converts the chemical energy of fuel into electrical energy. It uses fuel and oxygen as raw materials. It has high energy conversion efficiency, no noise, and no pollution. It can become an electric vehicle. The power source of the fuel cell; the membrane electrode is the core component of the fuel cell and the fundamental source of power for the fuel cell. Its cost accounts for 70% of the fuel cell stack and 35% of the fuel cell power system. The performance and durability of the membrane electrode directly determine The performance and durability of the fuel cell stack and system, and the core of the membrane electrode is the proton exchange membrane, which is a soli...

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Problems solved by technology

[0002] Proton exchange membrane fuel cell (PEMFC) is a chemical device that directly converts the chemical energy of fuel into electrical energy. It uses fuel and oxygen as raw materials. It has high energy conversion efficiency, no noise, and no pollution. It can become an electric vehicle. The power source of the fuel cell; the membrane electrode is the core component of the fuel cell and the fundamental source of power for the fuel cell. Its cost accounts for 70% of the fuel cell stack and 35% of the fuel cell power system. The performance and durability of the membrane electrode directly determine The performance and durability of the fuel cell stack and system, and the core of the membrane electrode is the proton exchange membrane, which is a solid polymer membrane that isolates electrons but can conduct hydrogen protons. It has excellent proton conductivity, chemical stability and Mechanical properties: In the continuous production process, after the surface of the proton exchange membrane is generally coated with a catalyst and a gas diffusion layer, the sealing material is used to complete the sealing around the proton exchange membrane to form a membrane electrode. After sealing, only the unsealed surface center of the proton exchange membrane The region is used as the active region of the membrane electrode, which often results in the waste of the proton exchange membrane; at the same time, the area around the proton exchange membrane will be damaged during the transportation during production, and the protection and pre-sealing of the proton exchange membrane are often neglected, and its use in industry How to batch and continuously form the protection and sealing of proton exchange membranes in production has become a problem that needs to be improved urgently

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