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US 7,732,502 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.
Claims9
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;
- forming a plurality of first reaction products;
- combining said first reaction products with a linking-molecule precursor so as to form a second reaction product, wherein the second reaction product includes at least two of said first reaction products that are connected by a linking molecule formed from the linking-molecule precursor;
- protonating the second reaction products;
- and
- forming a polymeric compound including a proton conductive functional group attached to one or more fullerenes by the spacer molecule that is at least partially fluorinated.
3 more elements
Dependencies are inferred from the claim text.