GAS DIFFUSION LAYER WITH FLOWPATH

摘要

[Problem] To provide a gas diffusion layer with flowpath which is thin and ensures excellent gas diffusibility. [Solution] A gas diffusion layer with flowpath in which an electroconductive wire (A) for forming a flowpath is arranged so as to be parallel on an electroconductive substrate (B), and which is characterized in that the height of the flowpath formed by the electroconductive wire (A) is 300 mum or less and the equivalent diameter of the flowpath formed by adjacent electroconductive wires (A) is 300 mum or less.