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AssigneeSony Corporation
InventorsKoichiro Hinokuma, Björn Pietzak, Constance Gertrud Rost, Masafumi Ata
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A proton conductor mainly contains a carbonaceous material derivative, such as, a fullerene derivative, a carbon cluster derivative, or a tubular carbonaceous material derivative in which groups capable of transferring protons, for example, —OH groups or —OSO3H groups are introduced to carbon atoms of the carbonaceous material derivative. The proton conductor is produced typically by compacting a powder of the carbonaceous material derivative. The proton conductor is usable, even in a dry state, in a wide temperature range including ordinary temperature. In particular, the proton conductor mainly containing the carbon cluster derivative is advantageous in increasing the strength and extending the selection range of raw materials. An electrochemical device, such as, a fuel cell, that employs the proton conductor is not limited by atmospheric conditions and can be of a small and simple construction. The proton conductor may contain a polymer in addition to the carbonaceous material derivative, which conductor can be formed, typically by extrusion molding, into a thin film having a large strength, a high gas permeation preventive ability, and a good proton conductivity.
A proton conductor comprising a carbon cluster derivative that comprises a plurality of functional groups so as to be capable of transferring a plurality of protons between each of the functional groups of the carbon cluster derivative, wherein the proton conductor further comprises a polymer material in addition to the carbon cluster derivative.
An electrochemical device comprising a first electrode, a second electrode, and a proton conductor that is positioned between the first and second electrodes, the proton conductor comprising a carbon cluster derivative that comprises a plurality of functional groups so as to be capable of transferring a plurality of protons between each of the functional groups of the carbon cluster derivative wherein the proton conductor further comprises a polymer material.
A proton conductor comprising a fullerene derivative and a polymer material, the fullerene derivative comprising a plurality of functional groups so as to be capable of transferring protons between the functional groups of the fullerene derivative.
An electrochemical device comprising a first electrode, a second electrode, a proton conductor and a polymer material that are held between the first and second electrodes, the proton conductor comprising a fullerene derivative that comprises a plurality of functional groups so as to be capable of transferring protons between the functional groups of the fullerene derivative.
A proton conductor comprising a tubular carbonaceous material derivative that comprises a plurality of functional groups so as to be capable of transferring protons between the functional groups of the tubular carbonaceous material derivative wherein the proton conductor comprises a mixture of the tubular carbonaceous material derivative and a fullerene derivative that also includes the functional groups.
An electrochemical device comprising a first electrode, a second electrode, and a proton conductor that is positioned between the first and second electrodes, the proton conductor comprising a tubular carbonaceous material derivative that comprises a plurality of functional groups so as to be capable of transferring protons between the functional groups of the tubular carbonaceous material derivative.
An electrochemical device comprising a first electrode, a second electrode, and a proton conductor that is positioned between the first and second electrodes, the proton conductor comprising a carbon cluster derivative that comprises a plurality of functional groups so as to be capable of transferring a plurality of protons between each of the functional groups of the carbon cluster derivative wherein the proton conductor comprises a thin film that has a thickness of 300 μm or less.
Dependencies are inferred from the claim text.