Victrex Manufacturing Limited

Richard F Bridges

Brian Wilson

Peter Charnock

David John Kemmish

John Neil Devine

John Edward Lockley

Mark J Andrews

A method of preparing an ion-conducting material, for example membrane, having reduced sensitivity to water includes a step of treating an ion-conducting polymeric material (especially a sulphonated polyaryletherketone and/or sulphone) which has at least some crystallinity or which is crystallizable with a means to increase its crystallinity. The ion-conducting material prepared may be used in a Membrane Electrode Assembly of a fuel cell.

Ion exchange materials

A composite material, for example a composite membrane for a polymer electrolyte membrane fuel cell includes a first conductive polymer and a support material for the polymer, wherein the support material comprises a second conductive polymer. A method making of the composite material is also disclosed as is its use as a polymer electrolyte membrane in a fuel cell.

Composite ion exchange material

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Poulton-le-Fylde, United Kingdom

Richard F Bridges