Graphene composite film modified by single crystal sapphire whiskers as well as preparation method and application thereof

The invention discloses a graphene composite film modified by single crystal sapphire ) whiskers as well as a preparation method and application thereof. The graphene composite film provided by the invention comprises graphene and single crystal sapphire whiskers, the single crystal sapphire whisker...

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Bibliographische Detailangaben
Hauptverfasser:	Liu, Renchen, Ji, Shishan, Kuang, Ting, Liu, Yan, Ma, Qing, Chen, Jianjun
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS CAPACITORS CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE ELECTRICITY MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING NANOTECHNOLOGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TRANSPORTING
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Beschreibung
Zusammenfassung:	The invention discloses a graphene composite film modified by single crystal sapphire ) whiskers as well as a preparation method and application thereof. The graphene composite film provided by the invention comprises graphene and single crystal sapphire whiskers, the single crystal sapphire whiskers and the graphene are dispersed in the graphene composite film, and the content by weight of the graphene is greater than that of the single crystal sapphire whiskers. The graphene composite flm can be used to prepare an electrode and applied to lithium ion batteries and capacitors. The graphene composite film has excellent toughness, structural stability and folding resistance as well as excellent electroconductivity and thermoconductivity; and the preparation method thereof is good in reproducibility and low in cost. The electrode has stable structure, low internal resistance, and excellent electroconductivity, thermoconductivity, cycle performance and rate performance during usage as well as charging and discharging. Prepare a dispersion containing single crystal SOl sapphire whiskers and graphene oxide Form a film from the dispersion to obtain a S02 graphene oxide composite film Reduce the graphene oxide composite film