Carbon Fiber Mat for Hydrogen Fuel Cell GDL
High-performance carbon fiber felt designed specifically for hydrogen fuel cell Gas Diffusion Layer (GDL) applications. Features uniform pore structure, high surface area for fuel diffusion, low resistance and high electrical conductivity.
Key Features
- Uniform pore shape and high surface area
- Excellent fuel diffusion channels
- Low resistance, high electrical conductivity
- High stress resistance
- Corrosion resistance in acid-base environments
- Long-term stability under high pressure
Overview
This carbon fiber felt is engineered specifically for the gas diffusion layer (GDL) in hydrogen fuel cells, one of the most demanding roles a carbon material can play. The GDL must distribute reactant gases evenly to the catalyst, conduct electrons with minimal resistance, manage water produced during the reaction, and survive the acidic, high-pressure environment of a proton exchange membrane fuel cell (PEMFC).
The felt's uniform pore shape and high surface area create efficient diffusion channels that deliver hydrogen and oxygen uniformly across the membrane electrode assembly, while its low resistance and high electrical conductivity minimize losses in the cell. High stress resistance and long-term stability under pressure ensure the GDL maintains its structure through thousands of operating cycles.
Offered in 20g and 30g Grade A weights, the material resists corrosion in acid-base environments, which is essential for the chemistry inside a PEMFC. It is suited to fuel cell stacks and other electrochemical devices where gas diffusion, conductivity, and chemical durability must all be satisfied at once.
Specifications
| Parameter | Value |
|---|---|
| Weight | 20g / 30g (Grade A) |
| Material | Carbon Fiber |
| Function | Conductive, Gas Diffusion |
| Application | PEMFC Fuel Cells |
Applications
Frequently Asked Questions
What is a gas diffusion layer (GDL) and why does it matter?
The GDL distributes reactant gases to the catalyst, conducts electrons, and manages water in a fuel cell. Its uniform pore structure and conductivity directly affect the efficiency and durability of the cell.
What makes this felt suitable for PEMFC applications?
It combines a uniform pore structure and high surface area for gas diffusion, low resistance and high conductivity for efficiency, and corrosion resistance in acid-base environments for long-term stability under pressure.
What weights are available for the fuel cell GDL felt?
It is available in 20g and 30g Grade A weights, allowing selection based on the diffusion and conductivity requirements of the specific fuel cell design.
