Improved electrocatalyst, fuel cell cathode and fuel cell

Details Improved electrocatalyst, fuel cell cathode and fuel cell Improved electrocatalyst, fuel cell cathode and fuel cell

H - Electricity

01

M

H01M 4/86 (2006.01) H01B 1/12 (2006.01)

Patent

CA 2706703

The present invention is related to fuel cells and fuel cell cathodes, especially for fuel cells using hydrogen peroxide, oxygen or air as oxidant. A supported electrocatalyst (204) or unsupported metal black catalyst (206) of cathodes according to an embodiment of the present invention is bonded to a current collector (200) by an intrinsically electron conducting adhesive (202). The surface of the electrocatalyst layer is coated by an ion-conducting ionomer layer (210). According to an embodiment of the invention these fuel cells use cathodes that employ ruthenium alloys RuMe I Me II such as ruthenium-palladium-iridium alloys or quaternary ruthenium-rhenium alloys RuMe I Me II Re such as ruthenium-palladium-iridium-rhenium alloys as electrocatalyst (206) for hydrogen peroxide fuel cells. Other embodiments are described and shown.

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