Production method of electrode material of high performance carbon fibre for fuel cell

Abstract

The invention relates to a production method of high performance carbon fiber electrode material used for fuel cells, which pertains to the technical field of non-woven fabric and comprises the following processing steps: 1) glue-free polyacrylonitrile-based carbon fibre is selected and used as raw material, copying and manufacturing are carried out according to a non-woven technology, wherein, CMC is adopted as a dispersant and water-soluble polyvinyl alcohol fiber is taken as enhancing and bonding fiber; 2) water-soluble phenolic resin is selected and used by the copied and manufactured semi-finished product in the step 1), resin coating is carried out by adopting an impregnating method and drying processing is carried out; 3) a flat vulcanizing machine is adopted to carry out hot pressing processing; 4) high-temperature carbonizing treatment is carried out at the temperature of 2100-2300 DEG C and then heat preservation treatment and temperature reduction treatment are carried out. The method has simple and reasonable technology and easily-obtained raw material, and the manufactured high performance carbon fiber electrode material used for the fuel cells has compact structure, smooth surface, low resistivity, high air permeability and good strength. The use requirement of proton exchange membrane fuel cells can be met, and the method provides a special domestic assorted material for the research and development of the domestic fuel cells.

Description

technical field [0001] The invention belongs to the technical field of nonwoven fabrics, and in particular relates to a production method of high-performance carbon fiber electrode materials for fuel cells. Background technique [0002] High-performance carbon fiber electrode materials for fuel cells are one of the four key supporting materials for proton exchange membrane fuel cells. They are used as gas diffusion layer materials for proton exchange membrane fuel cells. It has multiple functions such as providing gas channels, electronic channels and drainage channels for electrode reactions. At present, the high-performance carbon fiber electrode materials used in China mainly rely on imports, which are expensive. With the development of domestic carbon fiber production technology in recent years, carbon fibers produced by many companies have been commercialized. Due to the different quality and specifications of carbon fibers in various companies, The quality of the high...

AI Technical Summary

Problems solved by technology

At present, the high-performance carbon fiber electrode materials used in China mainly rely on imports, which are expensive. With the development of domestic carbon fiber production technology in recent years, carbon fibers produced by many companies have been commercialized. Due to the different quality and specifications of carbon fibers in various companies, The quality of high-performance carbon fiber electrode materials produced cannot be compared with imported products