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Sodium-ion battery negative electrode tin-carbon composite hollow sphere material and application thereof

A sodium-ion battery and hollow sphere technology, applied to battery electrodes, secondary batteries, circuits, etc., to achieve the effects of abundant raw material reserves, stable charge-discharge cycle performance, and simple methods

Active Publication Date: 2018-08-07
INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, there are no good materials in the prior art for battery anode material systems

Method used

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  • Sodium-ion battery negative electrode tin-carbon composite hollow sphere material and application thereof
  • Sodium-ion battery negative electrode tin-carbon composite hollow sphere material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 1). Weigh 0.0600g SnCl respectively 2 , 0.1g triaminophenol, 0.1ml formaldehyde and 1ml ammonia water were dissolved in 30ml deionized water, and the mixed solution was stirred and reacted on a magnetic stirrer for 30 minutes to obtain solution A;

[0031] 2). Add 20ml of acetone to solution A and let it stand;

[0032] 3). Centrifuge the solution A after standing, put it in an oven and dry it at 75°C for 12 hours to obtain product B;

[0033] 4). Put the product B into a quartz boat, place the quartz boat in a high-temperature tube furnace and react at 800°C for 6 hours to obtain the tin-carbon composite hollow sphere material.

[0034] The electrochemical test method of the obtained tin-carbon composite hollow sphere negative electrode material is as follows:

[0035] Adopt button cell to study the electrochemical performance of negative electrode material, adopt DMF to be solvent, the formula of pole plate is according to: active material: PVDF: the ratio of acetyl...

Embodiment 2

[0037] 1). Weigh 0.300g SnCl respectively 2 , 0.1g triaminophenol, 0.1ml formaldehyde and 1ml ammonia water were dissolved in 30ml deionized water, and the mixed solution was stirred and reacted on a magnetic stirrer for 30 minutes to obtain solution A;

[0038] 2). Add 20ml of acetone to solution A and let it stand;

[0039] 3). Centrifuge the solution A after standing, put it in an oven and dry it at 75°C for 12 hours to obtain product B;

[0040] 4). Put the product B into a quartz boat, place the quartz boat in a high-temperature tube furnace and react at 800°C for 6 hours to obtain the tin-carbon composite hollow sphere material.

[0041] Gained C / Sn / C composite hollow sphere negative electrode material electrochemical test method is as follows:

[0042] A button cell is used to study the electrochemical performance of the negative electrode material, DMF is used as the solvent, and the formula of the pole piece is mixed with DMF solvent according to the ratio of active...

Embodiment 3

[0044] 1). Weigh 0.4562g SnCl respectively 2 , 0.1g triaminophenol, 0.1ml formaldehyde and 1ml ammonia water were dissolved in 30ml deionized water, and the mixed solution was stirred and reacted on a magnetic stirrer for 30 minutes to obtain solution A;

[0045] 2). Add 20ml of acetone to solution A and let it stand;

[0046] 3). Centrifuge the solution A after standing, put it in an oven and dry it at 75°C for 12 hours to obtain product B;

[0047] 4). Put the product B into a quartz boat, place the quartz boat in a high-temperature tube furnace and react at 800°C for 6 hours to obtain the tin-carbon composite hollow sphere material.

[0048] The electrochemical test method of the obtained tin-carbon composite hollow sphere negative electrode material is as follows:

[0049] Adopt button cell to study the electrochemical performance of negative electrode material, adopt DMF to be solvent, the formula of pole sheet is according to: active material: PVDF: the ratio of acetyl...

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Abstract

The invention discloses a sodium-ion battery negative electrode tin-carbon composite hollow sphere material and an application thereof. A method for preparing the sodium-ion battery negative electrodetin-carbon composite hollow sphere material includes the steps: weighing tri-aminophenol and tin chloride according to the proportion of 1:3-1:6, dissolving the tri-aminophenol and the tin chloride in deionized water, adding formaldehyde and ammonia water into the deionized water, placing solution onto a magnetic stirrer and performing stirring reaction for 30 minutes to obtain solution A; addingacetone into the solution A and allowing the acetone and the solution A to stand still; centrifugally separating the solution standing still at the second step, then placing the solution into an ovenand drying the solution at preset temperature to obtain spherical products B with hollow structures; placing the powdery products B into quartz boats, placing the quartz boats into high-temperature tube furnaces and performing carbonization at preset temperature for preset time to obtain the sodium-ion battery negative electrode tin-carbon composite hollow sphere material. The preparation methodis easy to operate, technological processes are short, and the sodium-ion battery negative electrode tin-carbon composite hollow sphere material is quite suitable for industrial use.

Description

technical field [0001] The invention relates to the technical field of battery materials, in particular to a tin-carbon composite hollow sphere material for a negative electrode of a sodium ion battery and an application thereof. Background technique [0002] With the rapid development of large-scale smart grids and the popularization of electric vehicles, lithium resources cannot meet the huge demand for lithium-ion batteries, and it is necessary to develop energy storage technologies that can replace lithium-ion batteries. Because sodium is abundant in nature, accounting for about 2.64% of the earth's crustal reserves, and widely distributed, the development cost is low, and its batteries are more low-cost and high-safety, so sodium-ion batteries (SIBs) are considered to be very promising. Development potential of the secondary battery system. At present, some countries with relatively advanced battery technology in the world have listed sodium-ion battery technology as a...

Claims

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Application Information

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IPC IPC(8): H01M4/36H01M10/054
CPCH01M4/362H01M10/054Y02E60/10
Inventor 杨艳玲李妍欣锁国权李丹冯雷侯小江陈华军奥迪毕雅欣占胜陈进耿王祎朱建锋
Owner INST OF APPLIED PHYSICS JIANGXI ACADEMY OF SCI
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