| 摘要 |
PROBLEM TO BE SOLVED: To provide a fuel cell and a carbon composite structure.SOLUTION: This invention provides a carbon composite structure comprising a carbon nanofiber network layer with a pore diameter of a pore from 100 nm to 2.5 μm, and a carbon micro fiber network layer on the carbon nanofiber network layer. This invention also provides a fuel cell comprising a catalyst layer, a gas diffusion layer, a bipolar plate and a current collector, wherein the gas diffusion layer comprises the carbon nanofiber network layer and the carbon micro fiber network layer thereon to form the carbon composite structure, with the carbon nanofiber network layer having a pore diameter of a pore from 100 nm to 2.5 μm. |
