Patent ID: 8278001

Claim:
A direct oxidation fuel cell (DOFC) comprising: an anode electrode configured to generate power, the anode electrode having a gas diffusion layer (GDL) loaded with at least one polymer and a microporous layer; wherein the GDL has a porosity such that it increases the power density of the DOFC, wherein said porosity is adjusted by adjusting the polymer content of the GDL and, wherein said porosity is selected based on at least one of the group consisting of: operating temperature of the DOFC and current density of the DOFC, wherein, the DOFC is configured to have at least one selected from the group consisting of: an operating temperature of about 50° C. and porosity of about 0.59%; an operating temperature of 70° C. and porosity of about 0.48%; a current density of about 300 mA/cm 2 and porosity of about 0.53%; and a current density is 200 mA/cm 2 and porosity is about 0.41%, wherein one of the at least one polymer is a fluorinated polymer, and wherein the GDL is loaded at between 30 wt % to 70 wt % with the at least one fluorinated polymer.