Carbon cloth, which is an abbreviation of carbon fiber cloth, is formed by carbonizing or carbonizing a pre-oxidized polyacrylonitrile fiber fabric. Also known as carbon fiber cloth, carbon fiber cloth, carbon cloth, carbon fiber fabric, carbon fiber tape, carbon fiber sheet (prepreg).

　　Its main features include:

　　1. Guide the gas from the guide groove of the graphite plate to the coal contact layer;

　　2. Smoothly exclude water from the reaction product out of the catalyst layer to avoid flooding problems;

　　3. The current conductor;

　　4. Heat dissipation when reacting to the fuel cell;

　　5. Sufficient strength to support the MEA when it is deformed due to excessive water absorption.