CARBONACEOUS MATERIAL, METHOD FOR PRODUCING SAME, ELECTRODE ACTIVE MATERIAL FOR ELECTRIC DOUBLE LAYER CAPACITORS, ELECTRODE FOR ELECTRIC DOUBLE LAYER CAPACITORS, AND ELECTRIC DOUBLE LAYER CAPACITOR

CARBONACEOUS MATERIAL, METHOD FOR PRODUCING SAME, ELECTRODE ACTIVE MATERIAL FOR ELECTRIC DOUBLE LAYER CAPACITORS, ELECTRODE FOR ELECTRIC DOUBLE LAYER CAPACITORS, AND ELECTRIC DOUBLE LAYER CAPACITOR

The present invention relates to a carbonaceous material having a silicon element content of less than 200 ppm, a powder conductivity of 10.0 to 22.0 S/cm, a total amount of surface functional groups of 0.22 to 0.36 meq/g, and a pore volume of 0.10 to 0.20 cm3/g in terms of pores having a pore size...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: NISHIMURA, Shushi, HITOMI, Mitsunori, NISHINAMI, Hiroyuki, YAMADA, Takayuki, MATSUSHITA, Minoru
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
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Beschreibung
Zusammenfassung:The present invention relates to a carbonaceous material having a silicon element content of less than 200 ppm, a powder conductivity of 10.0 to 22.0 S/cm, a total amount of surface functional groups of 0.22 to 0.36 meq/g, and a pore volume of 0.10 to 0.20 cm3/g in terms of pores having a pore size of not less than 4 nm as measured by a BJH method.