Back to results
US 7,732,087 B2Granted
Catalyst for fuel cell, and membrane-electrode assembly for fuel cell and fuel cell system including same
AssigneeSamsung SDI Co., Ltd.
InventorsAlexey Alexandrovichserov, Chan Kwak, Si-Hyun Lee
Life of this patent
Estimating the term…
Abstract
The catalyst for a fuel cell includes a carbon-based material, and Re-Ch supported on the carbon-based material, wherein Ch is selected from the group consisting of S, Se, Te, and combinations thereof. The cathode catalyst has high activity and selectivity for reduction of oxidant and is capable of improving performance of a membrane-electrode assembly and a fuel cell system.
Claims16
A fuel cell, comprising:
- a catalyst comprised of:
- a carbon-based material;
- and
- Re-Ch supported on the carbon-based material, wherein Ch is selected from the group consisting of S, Se, Te, and combinations thereof, the supported Re-Ch being in an amount of 45 to 49 wt % based on the total weight of the catalyst.
1 more element
A membrane-electrode assembly for a fuel cell, comprising:
- an anode;
- a cathode facing the anode, the cathode comprising a cathode catalyst comprising:
- a carbon-based material;
- and
- Re-Ch supported on the carbon-based material, wherein Ch is selected from the group consisting of S, Se, Te, and combinations thereof, and the Re-Ch is supported in an amount of 45 to 49 wt % based on the total weight of the cathode catalyst;
- and
- a polymer electrolyte membrane interposed between the anode and the cathode.
4 more elements
A fuel cell system comprising:
- an electricity generating element, comprising:
- a membrane-electrode assembly comprising
- an anode;
- a cathode facing the anode, the cathode comprising a cathode catalyst comprising a carbon-based material and Re-Ch supported on the carbon-based material, wherein Ch is selected from the group consisting of S, Se, Te, and combinations thereof, and the Re-Ch is supported in an amount of 45 to 49 wt % based on the total weight of the cathode catalyst;
- and
- a polymer electrolyte membrane interposed between the anode and the cathode;
- and
- a separator positioned at each side of the membrane-electrode assembly;
- a fuel supplier supplying the electricity generating element with fuel;
- and
- an oxidant supplier supplying the electricity generating element with oxidant.
8 more elements
Dependencies are inferred from the claim text.