Schiff base polymer/carbon nanotube composite electrode material with shish-kebab structure and preparation method of Schiff base polymer/carbon nanotube composite electrode material

A carbon nanotube composite and electrode material technology, which is applied in the direction of carbon nanotubes, nanocarbons, battery electrodes, etc., can solve the problems of small specific surface area of ​​polymers, low utilization rate of functional groups, poor conductivity, etc., and achieve good structural stability. High yield and the effect of increasing electrical conductivity
CN110148720AActive Publication Date: 2019-08-20SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SOUTH CENTRAL UNIVERSITY FOR NATIONALITIES
Publication Date
2019-08-20

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Abstract

The invention provides a Schiff base polymer / carbon nanotube composite electrode material with a shish-kebab structure and a preparation method of the Schiff base polymer / carbon nanotube composite electrode material. The composite electrode material is prepared from dialdehyde, diamine and acidified carbon nanotubes through a solvothermal reaction in one step, the dialdehyde and the diamine are used as monomers for synthesizing a Schiff base polymer, the total solubility the monomers is 0.001-2 mol / L, and the content of the carbon nanotubes in the product is 2.5-50 wt.%. According to the invention, the method is simple in reaction and high in yield, and by-product water cannot pollute the environment; particularly, the method can promote the Schiff base to uniformly grow on the carbon nanotube in an embedded manner to form a shish-kebab structure polymer; the structure not only exposes more lithium ion binding sites, but also greatly increases the specific surface area of the material, so that the contact between the electrolyte and the material is more sufficient, the conductivity of the material is increased after the carbon nano tube is compounded, and the composite electrode material has the advantages of good structural stability, high specific capacity, good rate capability and the like.
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Description

technical field

[0001] The invention belongs to the field of electrode materials, and in particular relates to a composite electrode material with a string crystal structure Schiff base polymer / carbon nanotube and a preparation method thereof. Background technique

[0002] In recent years, the extensive use of fossil fuels has caused great damage to the environment. Therefore, it is particularly important to develop clean new energy storage and conversion technologies. In recent years, secondary batteries have attracted extensive attention and research. Among them, as a new type of secondary battery, lithium-ion batteries have the advantages of environmental protection, long cycle life, good rate performance, no memory effect, and high energy density, and have been widely used in commercial applications. At present, lithium-ion batteries are not only used in small electronic products, but also in new energy electric vehicles and in military industry.

[0003] At present, ...

Claims

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