CONDUCTIVE CARBON, METHOD FOR PRODUCING SAME, METHOD FOR PRODUCING CONDUCTIVE CARBON MIXTURE CONTAINING SAID CONDUCTIVE CARBON, AND METHOD FOR PRODUCING ELECTRODE USING SAID CONDUCTIVE CARBON OR CONDUCTIVE CARBON MIXTURE
The present invention provides a conductive carbon which enables the achievement of an electricity storage device that has high energy density, while exhibiting improved charge/discharge cycle stability even during high voltage application. A conductive carbon according to the present invention is p...
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| creator | HORII, Daisuke YOSHIOKA, Kyohei TAKEDA, Sekihiro KUBOTA, Satoshi MIYAMOTO, Noriyuki TATSUMI, Satoyuki |
| description | The present invention provides a conductive carbon which enables the achievement of an electricity storage device that has high energy density, while exhibiting improved charge/discharge cycle stability even during high voltage application. A conductive carbon according to the present invention is produced by a method which comprises: an oxidation step wherein a carbon starting material is subjected to an oxidation treatment, thereby obtaining an oxidation-treated carbon that spreads in a paste-like state when a pressure is applied thereto; and a heat treatment step wherein the oxidation-treated carbon is subjected to a heat treatment under a vacuum or in a non-oxidizing atmosphere. Since CO2 is separated from the oxidation-treated carbon during the heat treatment process, the amount of CO2 generated from the thus-obtained conductive carbon in the temperature range of from 25 °C to 200 °C is smaller than the amount of CO2 generated from the oxidation-treated carbon in the temperature range of from 25 °C to 200 °C. It is preferable that the heat treatment is carried out in such a manner that the amount of CO2 generated from the thus-obtained conductive carbon in the temperature range of from 25 °C to 200 °C is within the range of from 0.015 % by mass to 0.050 % by mass of the entire conductive carbon. |
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A conductive carbon according to the present invention is produced by a method which comprises: an oxidation step wherein a carbon starting material is subjected to an oxidation treatment, thereby obtaining an oxidation-treated carbon that spreads in a paste-like state when a pressure is applied thereto; and a heat treatment step wherein the oxidation-treated carbon is subjected to a heat treatment under a vacuum or in a non-oxidizing atmosphere. Since CO2 is separated from the oxidation-treated carbon during the heat treatment process, the amount of CO2 generated from the thus-obtained conductive carbon in the temperature range of from 25 °C to 200 °C is smaller than the amount of CO2 generated from the oxidation-treated carbon in the temperature range of from 25 °C to 200 °C. It is preferable that the heat treatment is carried out in such a manner that the amount of CO2 generated from the thus-obtained conductive carbon in the temperature range of from 25 °C to 200 °C is within the range of from 0.015 % by mass to 0.050 % by mass of the entire conductive carbon.</abstract><oa>free_for_read</oa></addata></record> |
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| language | eng ; fre ; ger |
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| subjects | BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE CHEMISTRY COMPOUNDS THEREOF ELECTRICITY INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY |
| title | CONDUCTIVE CARBON, METHOD FOR PRODUCING SAME, METHOD FOR PRODUCING CONDUCTIVE CARBON MIXTURE CONTAINING SAID CONDUCTIVE CARBON, AND METHOD FOR PRODUCING ELECTRODE USING SAID CONDUCTIVE CARBON OR CONDUCTIVE CARBON MIXTURE |
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