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Spinning solution for preparing carbon fiber material, flexible electrode material and preparation method

A technology of carbon fiber materials and flexible electrodes, which is applied in battery electrodes, fiber chemical characteristics, circuits, etc., can solve the problems of complicated practical process of carbon fiber materials and the inability to realize the development of energy storage systems, and achieve excellent electrochemical performance and improve mechanical properties. Performance, the effect of reducing the process flow

Inactive Publication Date: 2020-07-24
XUZHOU NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This complicates the practical process of carbon fiber materials and makes it impossible to achieve more and better development in energy storage systems

Method used

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  • Spinning solution for preparing carbon fiber material, flexible electrode material and preparation method
  • Spinning solution for preparing carbon fiber material, flexible electrode material and preparation method
  • Spinning solution for preparing carbon fiber material, flexible electrode material and preparation method

Examples

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preparation example Construction

[0062] On the basis of the first aspect and the second aspect, the third aspect of the present invention provides a method for preparing a flexible electrode material, including:

[0063] Adding polyvinylpyrrolidone and glacial acetic acid to an organic solvent and stirring evenly, then adding tetraethyl silicate and tetrabutyl titanate to obtain a spinning solution;

[0064] Electrospinning the spinning solution to obtain spun fibers;

[0065] The spun fiber is activated and hydrolyzed, and then an inert gas is passed through and sintered at a temperature of 400-800° C. to prepare the flexible electrode material.

[0066] In the above preparation method, tetraethyl silicate and tetrabutyl titanate are easily hydrolyzed when meeting water under acidic conditions, and the hydrolysis of tetraethyl silicate and tetrabutyl titanate will diffuse from the center of the fiber to the surroundings, thus making The fibers create a porous structure. In addition, the protection of inert...

Embodiment 1

[0074] A method for preparing a flexible electrode material, comprising:

[0075] After adding polyvinylpyrrolidone, glacial acetic acid and nanometer materials into the organic solvent and stirring evenly, then adding tetraethyl silicate and tetrabutyl titanate to obtain a spinning solution;

[0076] Electrospinning the spinning solution to obtain spun fibers;

[0077] The spun fiber is activated and hydrolyzed, then passed through an inert gas and sintered at a temperature of 400-800°C to obtain the flexible electrode material;

[0078] Wherein, in parts by weight, the polyvinylpyrrolidone, the glacial acetic acid, the tetraethyl silicate, the tetrabutyl titanate, and the organic solvent are respectively added in 10 parts by weight, 10 parts by weight, and 20 parts by weight. Part, 5 parts by weight, 55 parts by weight;

[0079] Described organic solvent is dehydrated alcohol;

[0080] 0.5 parts by weight of nanomaterials are added to the spinning liquid, and the nanomate...

Embodiment 2

[0082] The implementation steps are the same as those in Example 1, except that:

[0083] The addition amounts of the polyvinylpyrrolidone, the glacial acetic acid, the tetraethyl silicate, the tetrabutyl titanate, and the organic solvent are: 5 parts by weight, 15 parts by weight, 15 parts by weight, and 8 parts by weight Part, 57 parts by weight; The addition of the nanomaterial is 1 part by weight.

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Abstract

The invention discloses a spinning solution for preparing a carbon fiber material. The spinning solution comprises polyvinylpyrrolidone, glacial acetic acid, tetraethyl silicate, tetrabutyl titanate and an organic solvent. On the basis, the invention further discloses a flexible electrode material and a preparation method of the flexible electrode material. The flexible electrode material preparedfrom the spinning solution has a hollow structure, and can realize excellent mechanical property and excellent electrochemical property.

Description

technical field [0001] The invention relates to the field of electrode materials, in particular to a spinning solution for preparing carbon fiber materials, a flexible electrode material and a preparation method. Background technique [0002] In the field of electrode material preparation, the existing carbon fiber material preparation process is realized by sintering organic polymer fibers with extremely high carbon content. As a superhard material, more importantly, the carbon fiber material with a solid structure cannot guarantee the complete infiltration of the electrolyte, which hinders the application of carbon fiber materials in energy storage systems. [0003] At present, in order to realize the functionalization of carbon fiber materials, it is necessary to further modify the surface of the prepared carbon fiber materials with functional groups or secondary loading of other functional active substances. This complicates the practical process of carbon fiber materia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/21H01M4/133
CPCD01F9/21H01M4/133Y02E60/10
Inventor 赖超孙闯
Owner XUZHOU NORMAL UNIVERSITY