Conductive agent with carbon nano-tubes coated with carbon nano-fibers, preparation method of conductive agent and lithium ion battery

The invention relates to a conductive agent with carbon nano-tubes coated with carbon nano-fibers, which is prepared by the following steps: firstly, preparing a fiber membrane by an electrospinning method, calcining to generate metal nickel-cobalt-manganese particles loaded with carbon fibers, depo...

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Bibliographische Detailangaben
Hauptverfasser:	GAO JIANJIANG, PU WANG, HE MENGJIAO, YANG YUNJIE, WANG YONG, SHEN LIEHA
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BRAIDING COTTON-WOOL ELECTRICITY FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS,NON-WOVEN FABRICS FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR KNITTING LACE-MAKING LAUNDERING MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARYMATERIAL MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OFARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES ORRIBBONS NANOTECHNOLOGY NATURAL OR ARTIFICIAL THREADS OR FIBRES NON-WOVEN FABRICS PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES SPINNING TEXTILES TRANSPORTING TREATMENT OF TEXTILES OR THE LIKE TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS TRIMMINGS WADDING
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Beschreibung
Zusammenfassung:	The invention relates to a conductive agent with carbon nano-tubes coated with carbon nano-fibers, which is prepared by the following steps: firstly, preparing a fiber membrane by an electrospinning method, calcining to generate metal nickel-cobalt-manganese particles loaded with carbon fibers, depositing a carbon material on the metal nickel-cobalt-manganese particles by a vapor deposition method to generate the carbon nano-tubes, and preparing the conductive agent with the carbon nano-tubes coated with the carbon nano-fibers. Finally, metal is removed through acid pickling, and the conductive agent with the carbon nano-tubes coated with the carbon nano-fibers is obtained. When the composite material is applied to a lithium ion battery, a continuous conductive network can be formed by coating the carbon nano-fibers with the carbon nano-tubes, so that the charge transmission efficiency and speed are effectively improved, and the internal resistance of the battery is effectively reduced. The carbon nano tube i