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

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...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: HORII, Daisuke, YOSHIOKA, Kyohei, TAKEDA, Sekihiro, KUBOTA, Satoshi, MIYAMOTO, Noriyuki, TATSUMI, Satoyuki
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
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
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung: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.