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Preparation and application of stainless steel mesh-loaded and carbon-coated tin nanostructure as negative electrode material for sodium-ion battery

A technology of sodium ion battery and stainless steel mesh, which is applied in nanotechnology for materials and surface science, electrode manufacturing, battery electrodes, etc., can solve problems such as unreported research work on preparation methods, and achieve improved size and enhanced electrical conductivity. , the effect of large specific surface area

Inactive Publication Date: 2018-08-17
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Carbon-coated tin nanostructure supported on stainless steel mesh is a new type of negative electrode active material for sodium-ion batteries. Its preparation method and related research work have not been reported yet.

Method used

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  • Preparation and application of stainless steel mesh-loaded and carbon-coated tin nanostructure as negative electrode material for sodium-ion battery

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Experimental program
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Effect test

Embodiment 1

[0032] A preparation method of carbon-coated tin nanostructure supported by stainless steel mesh, comprising the following steps:

[0033] 1), under magnetic stirring, dissolve 0.625g of sodium hydroxide in 40ml of deionized water to obtain solution A;

[0034] 2), under magnetic stirring, add 0.47g tin chloride to above-mentioned A solution to obtain solution B;

[0035] 3), under magnetic stirring, add 0.05g of ammonium fluoride to solution B to obtain solution or emulsion C;

[0036] 4), transfer the solution C to a stainless steel reaction kettle, and place the pre-cleaned stainless steel mesh in the solution for hydrothermal reaction, clean the stainless steel mesh with deionized water and ethanol, and react at 200°C for 24 hours , the stainless steel mesh-loaded tin oxide nanostructure is obtained;

[0037] 5), the stainless steel net-loaded tin nanostructure obtained in 4) was placed in 3.6 g of glucose and 40 mL of deionized water, soaked in 180 ° C for 4 hours to ob...

Embodiment 2

[0043] A preparation method of carbon-coated tin nanostructure supported by stainless steel mesh, comprising the following steps:

[0044] 1), under magnetic stirring, 0.9375g of sodium hydroxide was dissolved in 40ml of deionized water to obtain solution A;

[0045] 2), under magnetic stirring, add 0.47g tin chloride to above-mentioned A solution to obtain solution B;

[0046] 3), under magnetic stirring, add 0.05g of ammonium fluoride to solution B to obtain solution or emulsion C;

[0047] 4), transfer the solution C to a stainless steel reaction kettle, and place the pre-cleaned stainless steel mesh in the solution for hydrothermal reaction, clean the stainless steel mesh with deionized water and ethanol, and react at 200°C for 24 hours , the stainless steel mesh-loaded tin oxide nanostructure is obtained;

[0048] 5), the stainless steel net-loaded tin nanostructure obtained in 4) was placed in 3.6 g of glucose and 40 mL of deionized water, soaked in 180 ° C for 4 hours...

Embodiment 3

[0054] A preparation method of carbon-coated tin nanostructure supported by stainless steel mesh, comprising the following steps:

[0055] 1), under magnetic stirring, dissolve 1.25g of sodium hydroxide in 40ml of deionized water to obtain solution A;

[0056] 2), under magnetic stirring, add 0.47g tin chloride to above-mentioned A solution to obtain solution B;

[0057] 3), under magnetic stirring, add 0.05g of ammonium fluoride to solution B to obtain solution or emulsion C;

[0058] 4), transfer the solution C to a stainless steel reaction kettle, and place the pre-cleaned stainless steel mesh in the solution for hydrothermal reaction, clean the stainless steel mesh with deionized water and ethanol, and react at 200°C for 24 hours , the stainless steel mesh-loaded tin oxide nanostructure is obtained;

[0059] 5), the stainless steel net-loaded tin nanostructure obtained in 4) was placed in 3.6 g of glucose and 40 mL of deionized water, soaked in 180 ° C for 4 hours to obt...

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Abstract

The invention discloses preparation and application of a stainless steel mesh-loaded and carbon-coated tin nanostructure as a negative electrode material for a sodium-ion battery. The preparation comprises the steps of dissolving sodium hydroxide into deionized water to obtain a solution A; adding tin chloride to the solution A to obtain a solution B; adding ammonium fluoride to the solution B toobtain a solution or an emulsion C; transferring the solution C to a hydrothermal reactor, putting a pre-cleaned stainless steel mesh into the solution C for hydrothermal reaction, cooling after reaction is ended, and drying at certain temperature to obtain a stainless steel mesh-loaded tin oxide nanostructure; putting the stainless steel mesh-loaded tin oxide nanostructure into an organic solution and reacting to obtain a stainless steel mesh-loaded and organic matter-coated tin oxide nanostructure; and putting the stainless steel mesh-loaded and organic matter-coated tin oxide nanostructureinto a tube furnace for reaction to obtain a stainless steel mesh-loaded and carbon-coated tin oxide nanostructure. According to the preparation and application of the stainless steel mesh-loaded andcarbon-coated tin nanostructure, the charge-discharge capacity, the rate capability and the cycle performance of the sodium-ion battery are improved.

Description

technical field [0001] The invention relates to the technical field of secondary power battery materials, in particular to the preparation and application of a carbon-coated tin nanostructure loaded on stainless steel mesh for a negative electrode material of a sodium ion battery. Background technique [0002] Oil, natural gas and coal are not inexhaustible sources of energy, and the gases emitted by burning fossil fuels can cause serious global environmental problems. In addition, long-term dependence on imports of non-renewable resources threatens national security. Therefore, countries all over the world are looking for new, clean and green alternative energy sources, as well as energy conversion and storage systems. Among them, the chemical power source is one of the most important research directions, and the lithium-ion battery is a new type of chemical power source developed along with the metal secondary battery. However, lithium is expensive and has little content...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/1391H01M4/04H01M4/36H01M4/48H01M4/62H01M10/054B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00H01M4/0471H01M4/049H01M4/1391H01M4/366H01M4/483H01M4/62H01M4/625H01M10/054Y02E60/10
Inventor 锁国权李丹杨艳玲侯小江冯雷毕雅欣王祎占胜左玉李妍欣陈进耿石小燕朱建锋
Owner SHAANXI UNIV OF SCI & TECH
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