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Preparation method of azo porous material/carbon nanotube composite electrode material

A carbon nanotube composite and porous material technology, which is applied in the direction of battery electrodes, circuits, electrical components, etc., can solve the problems that the template method is not suitable for large-scale production, the nitrogen atom doping process is complicated, and the doping degree is limited. Industrial batch production, high Coulombic efficiency and rate performance, simple preparation

Active Publication Date: 2018-11-13
聚源材料科技(遵义)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the traditional nitrogen atom doping process is complicated, the cost is high, and the doping degree is limited; at the same time, the template method for constructing porous structures is not suitable for large-scale production

Method used

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  • Preparation method of azo porous material/carbon nanotube composite electrode material
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  • Preparation method of azo porous material/carbon nanotube composite electrode material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Weigh 0.8524g of copper chloride dihydrate, place it in a 50mL polytetrafluoroethylene-lined autoclave, add 25mL of ethanol, mix well, and cover the kettle tightly.

[0027] (2) Put the autoclave in a muffle furnace and react at 160°C for 24h. Cool to room temperature, filter under reduced pressure, and dry the product in vacuum at 50°C for 12 hours. Store in a dark place under a nitrogen protection atmosphere to obtain cuprous chloride nanocrystals with a diameter of 2-10 nm.

[0028] (3) 10 mg of cuprous chloride crystal powder, 10 mg of carbon nanotubes and 0.123 g of 1,3,5-triaminobenzene were dissolved in 5.0 mL of acetonitrile, and stirred at room temperature for 10 h.

[0029] (4) The reaction mixture was taken out, washed with 25% ammonia water, water and acetone respectively, and dried and stored.

[0030] It has been determined that in the nitrogen-rich porous material / carbon nanocomposite material, the nitrogen element content is 27.1% by weight; the sp...

Embodiment 2

[0036] (1) Weigh 0.8524g of copper chloride dihydrate, place it in a 50mL polytetrafluoroethylene-lined autoclave, add 25mL of ethanol, mix well, and cover the kettle tightly.

[0037] (2) Put the autoclave in a muffle furnace and react at 160°C for 24h. Cool to room temperature, filter under reduced pressure, and dry the product in vacuum at 50°C for 12 hours. Store in a dark place under a nitrogen protection atmosphere to obtain cuprous chloride nanocrystals with a diameter of 2-10 nm.

[0038] (3) 10mg of cuprous chloride crystal powder, 10mg of carbon nanotubes and 0.249g of 2,4,6-triethylbenzene-1,3,5-trimethylamine were dissolved in 5.0mL of acetonitrile, stirred at room temperature 10h.

[0039] (4) The reaction mixture was taken out, washed with 25% ammonia water, water and acetone respectively, and dried and stored.

Embodiment 3

[0041] (1) Weigh 0.8524g of copper chloride dihydrate, place it in a 50mL polytetrafluoroethylene-lined autoclave, add 25mL of ethanol, mix well, and cover the kettle tightly.

[0042] (2) Put the autoclave in a muffle furnace and react at 160°C for 24h. Cool to room temperature, filter under reduced pressure, and dry the product in vacuum at 50°C for 12 hours. Store in a dark place under a nitrogen protection atmosphere to obtain cuprous chloride nanocrystals with a diameter of 2-10 nm.

[0043] (3) 10mg of cuprous chloride crystal powder, 10mg of carbon nanotubes and 0.249g of 2,4,6-trimethylbenzene-1,3,5-triamine were dissolved in 5.0mL of acetonitrile, stirred at room temperature 10h.

[0044] (4) The reaction mixture was taken out, washed with 25% ammonia water, water and acetone respectively, and dried and stored.

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Abstract

The invention provides a preparation method of an azo porous material / carbon nanotube composite electrode material. A nano-scale cuprous chloride catalyst is prepared by adopting a solvothermal method; aromatic type amino compounds including 1,3,5-triaminobenzene and the like, which have a similar symmetrical structure, are selected as monomer molecules and subjected to amino coupling reaction under the catalysis of a cuprous chloride nano-crystal to prepare an azo polymer. The method disclosed by the invention can be carried out at room temperature, and an azo group is introduced into a porous polymer system to synthesize the azo porous material / carbon nanotube composite electrode material by adopting an in-situ composite technology, and very high nitrogen element content and abundant pore structures are realized; a prepared azo porous material can be subjected to reversible lithiation / lithium removal by high electrochemical performance in a charging / discharging cycle; the preparationmethod has the characteristics of simplicity in preparation, low cost and easiness for industrialized batch production.

Description

technical field [0001] The invention belongs to the field of preparation of lithium-ion battery materials, and in particular relates to a method for preparing an azo porous material / carbon nanotube composite electrode material by amino coupling reaction. Background technique [0002] Due to its high energy density and working voltage, low self-discharge rate, long service life, light weight, and environmental friendliness, lithium-ion batteries are widely used in various portable electronic devices. In recent years, electric vehicles and electric bicycles have developed rapidly supported by national industrial policies. Lithium batteries have become a potential field for lithium batteries, and higher requirements have been put forward for the capacity and high-rate charge-discharge performance of lithium-ion batteries. At present, the anode materials widely used in commercial lithium-ion batteries are basically carbon materials, such as artificial graphite, natural graphite,...

Claims

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Application Information

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IPC IPC(8): H01M4/36H01M4/583H01M4/60H01M10/0525
CPCH01M4/362H01M4/583H01M4/60H01M10/0525Y02E60/10
Inventor 苗中正
Owner 聚源材料科技(遵义)有限公司
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