Preparation method of Ti2CMXene-based battery electrode material

A battery electrode and film material technology, applied in the field of material chemistry, can solve the problems of unsatisfactory sodium ion free intercalation, inability to apply sodium ion batteries, poor cycle stability, etc., to achieve good cycle stability, low ion diffusion resistance, good Effect of Magnification Performance

Inactive Publication Date: 2017-09-15
SHENZHEN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

In recent years, a new wave of research on sodium-ion batteries has been set off. Since the radius of sodium ions is larger than that of lithium ions, graphite carbon anode materials that have been commercially used in lithium-ion batteries cannot ...

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  • Preparation method of Ti2CMXene-based battery electrode material
  • Preparation method of Ti2CMXene-based battery electrode material
  • Preparation method of Ti2CMXene-based battery electrode material

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Embodiment Construction

[0015] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0016] This embodiment provides a Ti-based 2 The preparation method of the battery electrode material of C MXene, the preparation method of this embodiment is by making Ti 2 C MXene undergoes intercalation and exfoliation to obtain Ti 2 CMXene thin film material, Ti 2 C MXene thin film material, after intercalation and stripping, the interlayer spacing becomes larger, and the material has high specific surface area, good electrical conductivity, good cycle stability and rate performance, and at the same time, after MXene material is intercalated, the material has low ion Diffusion resistance, low open circuit voltage and high storage capacity. It is very suitable for electrode materials used in energy storage devices such as lithium batteries and supercapacitors.

[0017] Its preparation method is as follows:

[0018] First step S1: carr...

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Abstract

The invention discloses a preparation method of a Ti2CMXene-based battery electrode material. A Ti2CMXene film material is prepared. Through intercalation and exfoliation, the interlayer spacing is enlarged, and the material has a high specific surface area, good conductivity, good cycling stability and rate capability. Meanwhile, the MXene material which is intercalated has low ion diffusion resistance, low open-circuit voltage and high storage capacity, so that the MXene material is quite suitable for being applied to an electrode material of an energy storage apparatus such as a lithium battery and a supercapacitor. The preparation method disclosed by the invention is simple in process and low in cost and does not generate exhaust gas and exhaust liquids polluting the environment. The Ti2C film material prepared by the preparation method is good in conductivity and large in specific surface area. As the electrode material, the Ti2C film material has good cycling stability and rate capability. The specific capacity of the prepared battery is greatly enhanced compared with that of the battery prepared from a conventional material.

Description

technical field [0001] The invention relates to the field of material chemistry, in particular to a Ti-based 2 The preparation method of C MXene battery electrode material. Background technique [0002] Energy and environmental issues are two major problems that human beings need to solve urgently. Today, with the depletion of fossil energy, increasingly serious environmental pollution, and global warming, it is particularly urgent to seek renewable green energy to replace traditional fossil energy and to seek harmony between man and the environment. For new, green, energy storage devices, while concerned about their greenness, high power density and high energy density are important indicators of whether they can truly replace traditional energy storage and transportation systems. New power supply systems, especially secondary batteries or supercapacitors are currently important green energy storage devices, and the core part of them is energy storage materials with excel...

Claims

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Application Information

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IPC IPC(8): C01B32/921H01G11/24H01G11/32H01M4/583H01M10/052
CPCC01P2002/72C01P2002/82C01P2004/01C01P2004/03C01P2006/40H01G11/24H01G11/32H01M4/583H01M10/052Y02E60/10Y02E60/13
Inventor 刘新科刘睿李奎龙顾虹吕有明俞文杰韩舜曹培江柳文军曾玉祥贾芳朱德亮
Owner SHENZHEN UNIV
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