Gm Global Technolgoy Operations, Inc.

Johnson Matthey Fuel Cells Limited

Materials and Separation Technology International Limited

Johnson Matthey Public Limited Company

Beverley Sowerby

Stephen Robert Tennison

David Thompsett

Jonathan David Brereton Sharman

Julia Margaret Rowe

Hanna Katariina Rajantie

David Emmerson Brown

Vlad Strelko

David Emerson Brown

An MEA comprising: (i) a central first conductive gas diffusion substrate having a first face and a second face; (ii) first and second catalyst layers each having a first and second face and wherein the first face of the first catalyst layer is in contact with the first face of the gas diffusion substrate and the first face of the second catalyst layer is in contact with the second face of the gas diffusion substrate; (iii) first and second electrolyte layers each having a first and second face and wherein the first face of the first electrolyte layer is in contact with the second face of the first catalyst layer and the first face of the second electrolyte layer is in contact with the second face of the second catalyst layer; (iv) third and fourth catalyst layers each having a first and second face and wherein the first face of the third catalyst layer is in contact with the second face of the first electrolyte layer and the first face of the fourth catalyst layer is in contact with the second face of the second electrolyte layer; and (v) first and second porous current collecting means each having a thickness of less than 400 m, and each having a first and second face and wherein the first face of the first current collecting means is in contact with the second face of the third catalyst layer and the first face of the second current collecting means is in contact with the second face of the fourth catalyst layer is disclosed and a fuel cell comprising such an MEA.

Fuel cell assembly

An improved fuel cell structure uses a first sheet of carbon fibres separated by an electrolyte from a second sheet of carbon fibres. A fuel cell catalyst is coated on the outside of the fibres and the fuel passed down one set of fibres and oxygen or air passed down the second sheet of fibres.

Fuel cell structure

A fuel cell system comprises a fuel cell stack and a carbon monoxide clean-up system in communication with the fuel cell stack. The carbon monoxide cleanup system comprises a first water gas shift reactor, a first hydride heat exchanger, and a second water gas shift reactor. The first water gas shift reactor comprises a first water gas shift catalyst. The first hydride heat exchanger comprises a first metal hydride, and is in communication with the first water gas shift reactor. The second water gas shift reactor comprises a second water gas shift catalyst, and is in communication with the first heat exchanger. The first hydride heat exchanger, and the second water gas shift reactors are disposed such that a reactant stream may pass through the first water gas shift reactor prior to passing through the first heat exchanger, and then pass through the second water gas shift reactor.

Systems and methods for carbon monoxide clean-up

Growing community of inventors

Bath, United Kingdom

Beverley Sowerby