C/G/CNT-S negative electrode material, preparation method and application
The invention provides a C/G/CNT-S negative electrode material, a preparation method and application, and particularly relates to the technical field of lithium ion batteries. The C/G/CNT-S negative electrode material comprises a carbon fiber, a sulfur core, a graphene box and a carbon nanotube, the...
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| creator | CAI JINMING HAO ZHENLIANG CHEN QIZAN |
| description | The invention provides a C/G/CNT-S negative electrode material, a preparation method and application, and particularly relates to the technical field of lithium ion batteries. The C/G/CNT-S negative electrode material comprises a carbon fiber, a sulfur core, a graphene box and a carbon nanotube, the graphene boxes are arranged on the surface of the carbon fiber in an array; the sulfur core is located in the graphene box; the carbon nanotubes are positioned on the surface of the graphene box and are bonded with the graphene box in a C-C bonding manner. Wherein the graphene box is used as a buffer space for volume expansion in the charge-discharge process of the sulfur negative electrode, and also provides compact outer layer protection for sulfur, so that the sulfur is effectively prevented from falling off; and the graphene box is also bonded with the carbon nanotubes to form a stable structure, so that the conductivity of the negative electrode material is improved. According to the integrated C/G/CNT-S nega |
| format | Patent |
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The C/G/CNT-S negative electrode material comprises a carbon fiber, a sulfur core, a graphene box and a carbon nanotube, the graphene boxes are arranged on the surface of the carbon fiber in an array; the sulfur core is located in the graphene box; the carbon nanotubes are positioned on the surface of the graphene box and are bonded with the graphene box in a C-C bonding manner. Wherein the graphene box is used as a buffer space for volume expansion in the charge-discharge process of the sulfur negative electrode, and also provides compact outer layer protection for sulfur, so that the sulfur is effectively prevented from falling off; and the graphene box is also bonded with the carbon nanotubes to form a stable structure, so that the conductivity of the negative electrode material is improved. 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The C/G/CNT-S negative electrode material comprises a carbon fiber, a sulfur core, a graphene box and a carbon nanotube, the graphene boxes are arranged on the surface of the carbon fiber in an array; the sulfur core is located in the graphene box; the carbon nanotubes are positioned on the surface of the graphene box and are bonded with the graphene box in a C-C bonding manner. Wherein the graphene box is used as a buffer space for volume expansion in the charge-discharge process of the sulfur negative electrode, and also provides compact outer layer protection for sulfur, so that the sulfur is effectively prevented from falling off; and the graphene box is also bonded with the carbon nanotubes to form a stable structure, so that the conductivity of the negative electrode material is improved. 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| subjects | BASIC ELECTRIC ELEMENTS ELECTRICITY MANUFACTURE OR TREATMENT OF NANOSTRUCTURES MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES NANOTECHNOLOGY PERFORMING OPERATIONS PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES TRANSPORTING |
| title | C/G/CNT-S negative electrode material, preparation method and application |
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