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Preparation method and application of a micro-nano structure iron oxide/carbon composite material

A carbon composite material, iron oxide technology, applied in nanotechnology, structural parts, nanotechnology and other directions for materials and surface science, can solve the problems of long preparation cycle, low output, complex process, etc., and achieve excellent cycle performance, The effect of high specific capacity and simple process route

Inactive Publication Date: 2020-04-21
JINGDEZHEN CERAMIC UNIV
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Problems solved by technology

These methods have disadvantages such as low yield, complex process, and long preparation cycle, which limit their further application to a certain extent.

Method used

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  • Preparation method and application of a micro-nano structure iron oxide/carbon composite material
  • Preparation method and application of a micro-nano structure iron oxide/carbon composite material
  • Preparation method and application of a micro-nano structure iron oxide/carbon composite material

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Embodiment Construction

[0031] In order to further elaborate the technical means and effects that the present invention takes to achieve the intended purpose of the invention, below in conjunction with the preferred embodiments, a description of the preparation method and application of a micro-nano structure iron oxide / carbon composite material proposed according to the present invention Specific embodiments, methods, steps, features and effects thereof are described in detail as follows:

[0032] Implementation column 1:

[0033] Weigh 0.20g of ferric nitrate nonahydrate, dissolve it in 5ml of glycerol, then add 35ml of absolute ethanol, stir evenly to form an orange-yellow solution with a molar concentration of iron ions of 0.0125 mol / L; then add 0.1g of glucose and stir until it is completely Dissolve, continue to stir for 5 minutes, transfer the mixed solution into a 50ml hydrothermal kettle, heat reaction at 180°C for 12 hours, cool to room temperature, then wash with deionized water and absolu...

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Abstract

The invention relates to a preparation method and application of a micro-nanostructured iron oxide / carbon composite material. The iron oxide / carbon composite material synthesized by adopting a hydrothermal method and subsequent heat treatment has a micro-nano porous core-shell structure, and the carbon shell layer can effectively enhance the electron transport of an iron oxide material and alleviates the volume expansion problem of the iron oxide material in a process of electrochemical cycle at the same time, so that a higher specific capacity and stable cycle performance can be finally obtained; the micro-nanostructured iron oxide / carbon composite material is an ideal lithium ion battery negative material, and can be widely applied to lithium ion power batteries requiring high energy density, long service life and high stability. Furthermore, the preparation method provided by the invention is simple, easy in control of conditions, low in cost, low in requirements for equipment, andconvenient for mass production, thus having a good application prospect.

Description

technical field [0001] The invention belongs to the field of new energy materials for lithium-ion batteries, and in particular relates to a preparation method and application of a micro-nano structure iron oxide / carbon composite material. Background technique [0002] As an energy storage device, lithium-ion batteries are widely used in small portable devices such as mobile phones, cameras and computers, and also have important application prospects in fields such as electric vehicles and aerospace. In recent years, the technology of the electric vehicle industry has developed rapidly, and at the same time, higher requirements have been put forward for the performance of lithium-ion batteries. Anode materials are the main components of lithium-ion batteries and play an important role in the performance of lithium batteries. At present, traditional commercial lithium-ion batteries use carbon materials as anode materials, and their specific capacity is only 372 mAh g -1 , it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M4/139H01M4/36H01M4/525H01M4/62H01M10/0525B82Y30/00
CPCB82Y30/00H01M4/139H01M4/362H01M4/525H01M4/625H01M10/0525Y02E60/10
Inventor 朱文均余永志胡跃辉陈义川张效华胡克艳
Owner JINGDEZHEN CERAMIC UNIV
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