A process for producing membrane electrodes

Abstract

The invention relates to the technical field of membrane electrode production technology, and provides a process method for producing membrane electrodes. The process method includes a thermal transfer printing process method, a thermal composite process method, a carbon paper bonding process method, and a hot pressing process method; The transfer printing process includes: S11: thermally transfer material A and material B; S12: roll press the thermally transferred material A and material B; thermal composite process includes: S21: thermally transfer the material A is cut into sheets and pasted on the lower frame material tape; S22: Set the upper frame material tape above the material A after thermal transfer, and press the heating roller to form a semi-finished material tape; the carbon paper bonding process includes : S31: Paste carbon paper on the top and bottom of the semi-finished material belt; S32: Carry out heating and rolling lamination, and cut into sheets; the hot pressing process includes: S41: Hot pressing the sheets. The invention realizes the continuous automatic production of the membrane electrode and improves the production efficiency and quality of the membrane electrode.

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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