ACTIVATED CARBON FOR POWER STORAGE DEVICE ELECTRODE

• Main Authors: AKAMATSU NORIYASU, OKUYA SATOSHI, TSUKAZAKI TAKANORI
• Format: Patent
• Language: English; Japanese
• Published: 16.09.2021
• 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

To provide an activated carbon that has high capacitance at normal temperature and low temperature, can maintain high capacitance even in a low temperature environment, and is suitable as an electrode material for a power storage device that generates a small amount of gas.SOLUTION: In an activated carbon for a power storage device electrode, the mesopore volume is 0.3 mL/g or more, and the molar ratio of acidic functional groups to basic functional groups is more than 2.0.SELECTED DRAWING: Figure 1 【課題】常温、及び低温での高い静電容量を有し、且つ低温環境下でも高い静電容量を維持でき、しかもガス発生量が少ない蓄電デバイスの電極材料として好適な活性炭を提供すること。【解決手段】メソ孔容積が０．３ｍＬ／ｇ以上、且つ塩基性官能基に対する酸性官能基のモル比が２．０超である蓄電デバイス電極用活性炭。【選択図】図１