"POROUS CARBON OXIDE NANOCOMPOSITE ELECTRODES FOR HIGH ENERGY DEMISTY SUPERCAPACITORS"

A high energy density supercapacitor is provided by using nanocomposite electrodes having an electrically conductive carbon network (15) having a surface area greater than 2,000 m2/g and a pseudo-capacitive metal oxide (16) such as MnO2. The conductive carbon network (15) is incorporated into a poro...

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Bibliographische Detailangaben
Hauptverfasser:	CHUN LU, KEVIN HUANG, ROSWELL J. RUKA
Format:	Patent
Sprache:	eng
Schlagworte:	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
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Zusammenfassung:	A high energy density supercapacitor is provided by using nanocomposite electrodes having an electrically conductive carbon network (15) having a surface area greater than 2,000 m2/g and a pseudo-capacitive metal oxide (16) such as MnO2. The conductive carbon network (15) is incorporated into a porous metal oxide structure to introduce sufficient electricity conductivity so that the bulk of metal oxide (16) is utilized for charge storage, and/or the surface of the conductive carbon network (15) is decorated with metal oxide to increase the surface area and amount of pseudo-capacitive metal oxide in the nanocomposite electrode for charge storage.