METHOD FOR PRODUCING MODIFIED ACTIVE CARBON

• Main Authors: KOBAYASHI SHOHEI, MATSUSHIMA MOTOMI, FUJIWARA HIDEAKI, KIMACHI KIYONARI, IWASAKI HIDEJI
• Format: Patent
• Language: English; Japanese
• Published: 24.11.2017
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; CHEMISTRY; COMPOUNDS THEREOF; ELECTRICITY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE

PROBLEM TO BE SOLVED: To provide a method for producing modified active carbon that has high capacitance and is suitable as an electrode material for an electric double layer capacitor capable of maintaining high capacitance and energy density even in the long-term use.SOLUTION: A method for producing modified active carbon includes reducing raw material active carbon with a specific surface of 1200 m/g or more and 2000 m/g or less by BET method, using an organic reductant.SELECTED DRAWING: None 【課題】本発明は、高い静電容量を有し、かつ、長期間の使用においても高い静電容量およびエネルギー密度を維持することのできる電気二重層キャパシタ用の電極材料として好適に使用し得る改質活性炭の製造方法を提供することを目的とする。【解決手段】ＢＥＴ法による比表面積が１２００ｍ２／ｇ以上２０００ｍ２／ｇ以下である原料活性炭を、有機還元剤を用いて還元処理することを含む、改質活性炭の製造方法。【選択図】なし