초록

A non-electrolytic layer that can be used, for example, in an electrode unit, a fuel cell, and/or a fuel cell stack is disclosed.

대표청구항 ▼

1. A fuel cell, comprising:a first gas diffusion layer;a second gas diffusion layer;an electrolyte between the first and the second gas diffusion layers;a first catalyst layer between the electrolyte and the first gas diffusion layer;a first non-electrolytic layer between the first catalyst layer an

1. A fuel cell, comprising:a first gas diffusion layer;a second gas diffusion layer;an electrolyte between the first and the second gas diffusion layers;a first catalyst layer between the electrolyte and the first gas diffusion layer;a first non-electrolytic layer between the first catalyst layer and the first gas diffusion layer, the first non-electrolytic layer comprising a catalyst; and a second catalyst layer between the electrolyte and the second gas diffusion layer. 2. The fuel cell of claim 1, wherein the first non-electrolytic layer comprises a non-electrolytic polymer. 3. The fuel cell of claim 1, wherein the first non-electrolytic layer comprises a fluorine-containing resin. 4. The fuel cell of claim 1, wherein the first non-electrolytic layer comprises polytetrafluoroethylene. 5. The fuel cell of claim 1, wherein the first non-electrolytic layer comprises a copolymer of tetrafluoroethylene and hexafluoropropylene. 6. The fuel cell of claim 1, wherein the catalyst comprises electrically conductive particulate material. 7. The fuel cell of claim 6, wherein the particulate material is unsupported on another material. 8. The fuel cell of claim 6, wherein the particulate material comprises platinum. 9. The fuel cell of claim 1, wherein the first catalyst layer is a cathode. 10. The fuel cell of claim 1, wherein the first catalyst layer is an anode. 11. The fuel cell of claim 1, wherein the electrolyte comprises a proton exchange membrane. 12. The fuel cell of claim 1, further comprising a second non-electrolytic layer between the second catalyst layer and the second gas diffusion layer. 13. The fuel cell of claim 1, further comprisinga first flow plate; anda second flow plate,wherein the first gas diffusion layer is between the first non-electrolytic layer and the first flow plate, and the second gas diffusion layer is between the second catalyst layer and the second flow plate. 14. The fuel cell of claim 1, wherein the first non-electrolytic layer has a thickness substantially equal to the thickness of the first catalyst layer. 15. The fuel cell of claim 1, wherein the first non-electrolytic layer is discrete from the first catalyst layer. 16. The fuel cell of claim 1, wherein the catalyst is capable is capable of reducing peroxide. 17. The fuel cell of claim 1, wherein the catalyst comprises a material selected from the group consisting of platinum, ruthenium, iridium, rhodium, palladium, and molybdenum. 18. The fuel cell of claim 1, wherein the catalyst is supported on a second material. 19. The fuel cell of claim 18, wherein the second material comprises a material selected from the group consisting of tungsten oxide, zirconium oxide, niobium oxide, tantalum oxide, and carbon. 20. The fuel cell of claim 18, wherein the catalyst is loaded on the second material from about 0.5 mg/cm 2 to about 2.0 mg/cm 2 . 21. The fuel cell of claim 1, wherein the catalyst has a surface area of from about 60 m 2 /g to about 120 m 2 /g. 22. The fuel cell of claim 1, wherein the catalyst has a particle size of less than about 45 angstroms.