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US 7,732,501 B2Granted
Fullerene based proton conductive materials
AssigneeSony Corporation
InventorsBerthold Nuber, Bjoern Pietzak
Life of this patent
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Abstract
A fullerene-based proton conductor including a proton conductive functional group connected to the fullerene by an at least partially fluorinated spacer molecule. Also, a polymer including at least two of the proton conductors that are connected by a linking molecule. Further, an electrochemical device employing the polymer as a proton exchange membrane, whereby the device is able to achieve a self-humidifying characteristic.
Claims3
A method of making a proton conductive polymer comprising:
- combining a fullerene with a spacer-molecule precursor wherein each of said spacer-molecule precursors is an at least partially fluorinated molecule, adding a linking molecular precursor to form a plurality of cross-linked first reaction products;
- and
- protonating the cross-linked first reaction product so as to form a polymeric compound including a proton conductive functional group attached to said fullerene by a spacer molecule that is formed from said spacer-molecule precursor that is at least partially fluorinated.
Dependencies are inferred from the claim text.