| 摘要 |
An ion-conducting membrane structure comprising a first ion-conducting membrane 2 wherein said first ion-conducting membrane has a first face and a second face, characterised in that a second ion-conducting membrane 3 is applied to the first face of the first ion-conducting membrane is disclosed. Such membrane structures are suitable for use in electrochemical devices, for example fuel cells. The membranes may be formed from sulphonated or phosphonated hydrocarbon polymers and may comprise a reinforcing layer 4 of PTFE or PVDF or PEEK or polyethylene. |
