一种具有贯穿孔道结构的气体扩散层及其制备方法和应用
By preparing a gas diffusion layer that penetrates the pore structure using a hard template method, the problem of water and hydrogen not being able to be discharged in time in the existing technology is solved, thus improving the electrochemical performance of the PEM electrolyzer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- HUADIAN HEAVY IND CO LTD
- Filing Date
- 2026-05-08
- Publication Date
- 2026-07-17
AI Technical Summary
The gas diffusion layer prepared by existing methods does not have a through-pore structure, which prevents water and hydrogen from being discharged in time, increases the internal ohmic resistance of the battery, and affects the electrochemical performance of the PEM electrolyzer.
The gas diffusion layer is prepared using a hard template method, which includes steps such as carbon fiber pretreatment, impregnation, drying, hot pressing curing, high-temperature carbonization, removal of template pore-expanding agent, and graphitization, to form a through-pore structure that ensures the smooth discharge of water and hydrogen.
It effectively reduces the tortuousness of the internal channels of the gas diffusion layer, reduces water flooding, and improves the electrochemical performance of the PEM electrolyzer.
Smart Images
Figure CN122406263A_ABST