Process method for producing membrane electrode

Abstract

The invention relates to the technical field of membrane electrode production processes, and provides a process method for producing a membrane electrode. The process method comprises a thermal transfer printing process method, a thermal compounding process method, a carbon paper laminating process method and a hot pressing process method. The thermal transfer printing process method comprises the following steps that S11, thermal transfer printing is performed on a material A and a material B; and S12, the material A and the material B subjected to heat transfer printing are rolled. The thermal compounding process method comprises the steps that S21, a material A subjected to thermal transfer printing is cut into sheets, and the sheets are transferred and pasted to the position above a lower frame material belt; and S22, an upper frame material belt is arranged above the material A subjected to heat transfer printing, and a semi-finished product material belt is formed through heating and rolling. The carbon paper laminating process method comprises the following steps: S31, respectively transferring and laminating carbon paper above and below a semi-finished product material belt; and S32, heating, rolling and compounding, and cutting into sheets. The hot-pressing process method comprises the following step of S41, carrying out hot pressing on a sheet material. Continuous automatic production of the membrane electrode is realized, and the production efficiency and quality of the membrane electrode are improved.

Description

technical field [0001] The invention relates to the technical field of membrane electrode production technology, in particular to a process method for producing membrane electrodes. Background technique [0002] Hydrogen energy is known as the "ultimate energy" of the 21st century, representing the development direction of clean energy, and has risen to the national energy strategy of China and major developed countries in the world. Hydrogen energy can achieve zero emissions in the true sense, which is known The safest and most efficient clean energy. [0003] A fuel cell is a chemical device that directly converts the chemical energy of fuel into electrical energy, also known as an electrochemical generator. It is another clean power generation technology after hydropower, thermal power and atomic power. It converts the Gibbs free energy part of the chemical energy of the fuel into electrical energy through an electrochemical reaction, which is not limited by the Carnot c...

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Problems solved by technology

[0007] In addition, the gas diffusion layer usually includes carbon paper / carbon cloth and a microporous layer supported on it. Membrane electrodes are the core components of proton exchange membrane fuel cells (PEMFC), which are multiphase material transport and electrochemical reactions for energy conversion. The site involves three-phase interface reaction and complex mass and heat transfer process, which directly determines the performance, life and cost of PEMFC. However, the current production process of membrane electrode is complicated, it is difficult to realize automatic production, and the production efficiency and quality are low.

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