Mixed conductive carbon and electrode
AssigneeEbara Corporation
InventorsHiroshi Yokota, Masashi Shimoyama, Eiichi Akiyama, Kazuyoshi Takeda
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Abstract
An electrode having both of electronic conductivity and ionic conductivity is provided. An electrode provided with a mixed conductive carbon having electronic conductivity and ionic conductivity, the carbon containing an ion-dissociative group on the surface thereof. The use of a platelet-type or herringbone-type carbon fiber as the carbon material enables the introduction of ion-dissociative groups at a high density with continuity, whereby ion paths are effectively formed and an excellent ionic conductivity can be imparted, in addition to the electron conductivity inherent in the carbon fiber.
Claims14
A mixed conductive carbon having electronic conductivity and ionic conductivity, comprising an ion-dissociative group on the surface of a carbon material.
A method for preparing a mixed conductive carbon, comprising a step of treating a carbon material in sulfuric anhydride or fuming sulfuric acid to introduce a sulfonic acid group thereinto.
A method for preparing a mixed conductive carbon, comprising a step of subjecting the surface of a carbon material to an oxidation treatment, and a step of reacting the surface with a molecule having a proton-dissociative group or a hydroxyl ion-dissociative group.
Dependencies are inferred from the claim text.