초록 ▼

The present invention relates to a bipolar plate (130 ) for fuel cells. The bipolar plate includes a metal plate (131) and a composite layer (132) formed thereon. The composite layer includes a composition made of a polymer resin and a carbon nanomaterial. The carbon nanomaterial is selected from t

The present invention relates to a bipolar plate (130 ) for fuel cells. The bipolar plate includes a metal plate (131) and a composite layer (132) formed thereon. The composite layer includes a composition made of a polymer resin and a carbon nanomaterial. The carbon nanomaterial is selected from the group consisting of carbon nanoparticles, carbon nanotubes, carbon fibers, carbon nanohorns and carbon fullerenes. The present invention also provides a fuel cell assembly (1000) includes a number of membrane electrode assemblies (110), a number of above-described bipolar plates and a number of gas diffusing layers (120).

대표청구항 ▼

I claim: 1. A bipolar plate for fuel cells, comprising: a metal plate; and a composite layer formed on the metal plate, the composite layer being comprised of a polymer resin with a carbon nanomaterial incorporated in the polymer resin. 2. The bipolar plate as claimed in claim 1, wherein the c

I claim: 1. A bipolar plate for fuel cells, comprising: a metal plate; and a composite layer formed on the metal plate, the composite layer being comprised of a polymer resin with a carbon nanomaterial incorporated in the polymer resin. 2. The bipolar plate as claimed in claim 1, wherein the carbon nanomaterial is selected from the group consisting of carbon nanoparticles, carbon nanotubes, carbon fibers, carbon nanohorns and carbon fullerenes. 3. The bipolar plate as claimed in claim 1, wherein the polymer resin is selected from the group consisting of thermoplastic resin, thermosetting resin and fluorinated resin. 4. The bipolar plate as claimed in claim 1, wherein the metal plate is comprised of a metal selected from the group consisting of copper, aluminum, nickel, stainless steel and any combination alloy thereof. 5. The bipolar plate as claimed in claim 1, wherein a thickness of the metal plate is in the range from 0.1 millimeters to 0.5 millimeters. 6. The bipolar plate as claimed in claim 1, wherein the composite layers are formed on opposite surfaces of the metal plate. 7. The bipolar plate as claimed in claim 1, wherein the composite layer has a plurality of grooves defined therein. 8. A fuel cell assembly comprising: a plurality of membrane electrode assemblies; a plurality of bipolar plates, the membrane electrode assemblies and the bipolar plates being arranged in an alternate fashion, each of the bipolar plates comprising a metal plate and a composite layer formed on the metal plate, the composite layer being comprised of a polymer resin and a carbon nanomaterial incorporated in the polymer resin; and a plurality of gas diffusing layers, the gas diffusing layers each being sandwiched between a respective membrane electrode assembly and a corresponding adjacent bipolar plate. 9. The fuel cell assembly as claimed in claim 8, wherein the carbon nanomaterial is selected from the group consisting of carbon nanoparticles, carbon nanotubes, carbon fibers, carbon nanohorns and carbon fullerenes. 10. The fuel cell assembly as claimed in claim 8, wherein the polymer resin is selected from the group consisting of thermoplastic resin, thermosetting resin and fluorinated resin. 11. The fuel cell as claimed in claim 8, wherein the metal plate is comprised of a metal selected from the group consisting of copper, aluminum, nickel, stainless steel and any combination alloy thereof. 12. The fuel cell assembly as claimed in claim 8, wherein the composite layer has a plurality of grooves defined therein.