Preparation method of electrode material graphene nanometer sheet and electrode sheet prepared therefrom

The invention provides a preparation method of an electrode material graphene nanometer sheet and an electrode sheet of a super capacitor prepared from the material. An electrode of the super capacitor assembled by using the material has a stable specific capacity up to 164-210 F/g under the current...

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Bibliographische Detailangaben
Hauptverfasser:	CHEN XIAOHONG, SONG HUAIHE, ZHAO SHENGNA
Format:	Patent
Sprache:	chi ; 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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Beschreibung
Zusammenfassung:	The invention provides a preparation method of an electrode material graphene nanometer sheet and an electrode sheet of a super capacitor prepared from the material. An electrode of the super capacitor assembled by using the material has a stable specific capacity up to 164-210 F/g under the current density of 100 mA/g; and a capacity retention ratio is more than 85% when the current density is gradually increased to 2000 mA/g from 1000 mA/g. The preparation of the graphene nano sheet by using a ball milling method has the advantages of simple method, easy operation, high specific capacity, good cycle performance and the like.