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Preparing method of carbon cloth material loaded with antimony pentoxide in different shapes and application of carbon cloth material in sodium-ion battery negative electrode

A technology of antimony pentoxide and sodium hydroxide, which is applied in the manufacture of battery electrodes, secondary batteries, and chemical electrodes. It can solve problems such as complex processes and achieve the effects of simple processes, short time consumption, and excellent electrochemical cycle performance.

Inactive Publication Date: 2019-12-13
SHAANXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above methods all involve the use of surfactants to change the Sb 2 o 3 Shape problem, complex process

Method used

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  • Preparing method of carbon cloth material loaded with antimony pentoxide in different shapes and application of carbon cloth material in sodium-ion battery negative electrode
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  • Preparing method of carbon cloth material loaded with antimony pentoxide in different shapes and application of carbon cloth material in sodium-ion battery negative electrode

Examples

Experimental program
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Effect test

Embodiment 1

[0032] A preparation method for loading antimony pentoxide carbon cloth materials with different shapes, comprising the following steps:

[0033] Step 1: After cleaning the carbon cloth with acetone to remove surface impurities, use 20g / L ammonium dihydrogen phosphate as the electrolyte to electrolyze for 5min at an electrolysis voltage of 5V to carry out anodic oxidation, use deionized water and absolute ethanol to wash repeatedly, and then dry;

[0034] Step 2: Add 0.57g antimony trichloride to 20mL of absolute ethanol to obtain antimony trichloride solution; gradually add 0.06g / mL sodium hydroxide solution to the antimony trichloride solution and magnetically stir until a white suspension is formed. Turbid liquid, soak the anodized carbon into the white suspension for 10 minutes, take it out and dry it in an oven at 40°C for 5 minutes; repeat the soaking and drying operations at least three times;

[0035] Step 3: Add 0.06g / mL sodium hydroxide solution to the suspension aft...

Embodiment 2

[0039] A preparation method for loading antimony pentoxide carbon cloth materials with different shapes, comprising the following steps:

[0040] Step 1: After cleaning the carbon cloth with acetone to remove surface impurities, use 25g / L ammonium dihydrogen phosphate as the electrolyte to electrolyze for 3 minutes at an electrolysis voltage of 5V to perform anodic oxidation, and use deionized water and absolute ethanol to repeatedly wash and dry;

[0041] Step 2: Add 0.57g antimony trichloride to 20mL of absolute ethanol to obtain antimony trichloride solution; gradually add 0.06g / mL sodium hydroxide solution to the antimony trichloride solution and magnetically stir until a white suspension is formed. Turbid liquid, soak the anodized carbon into the white suspension for 5 minutes, take it out and dry it in an oven at 60°C for 3 minutes; repeat the soaking and drying operations at least three times;

[0042]Step 3: Add 0.06g / mL sodium hydroxide solution to the suspension afte...

Embodiment 3

[0046] A preparation method for loading antimony pentoxide carbon cloth materials with different shapes, comprising the following steps:

[0047] Step 1: After cleaning the carbon cloth with acetone to remove surface impurities, use 20g / L ammonium dihydrogen phosphate as the electrolyte to electrolyze for 5min at an electrolysis voltage of 5V to carry out anodic oxidation, use deionized water and absolute ethanol to wash repeatedly, and then dry;

[0048] Step 2: Add 1.1 g of antimony trichloride to 40 mL of absolute ethanol to obtain an antimony trichloride solution; gradually add 0.06 g / mL of sodium hydroxide solution to the antimony trichloride solution and stir magnetically until a white suspension is formed. For turbid liquid, put the anodized carbon into the white suspension and soak for 8 minutes, then take it out and dry it in an oven at 50°C for 5 minutes; the soaking and drying operations should be repeated at least three times;

[0049] Step 3: Add 0.06g / mL sodium h...

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Abstract

The invention discloses a preparing method of a carbon cloth material loaded with antimony pentoxide in different shapes and application of the carbon cloth material in a sodium-ion battery negative electrode. The method comprises the steps of cleaning a carbon cloth to remove surface impurities, then conducting anodic oxidation, and conducting drying after washing; adding antimony trichloride into absolute ethyl alcohol to obtain an antimony trichloride solution; gradually adding a sodium hydroxide solution into the antimony trichloride solution, conducting stirring until a turbid liquid is generated, putting the carbon cloth after anodic oxidation into the turbid liquid to be soaked, and afterwards, taking out the carbon cloth and drying the carbon cloth; adding a strong alkaline solution into the turbid liquid after soaking of the carbon cloth to adjust the pH and obtain a mixed liquid, and putting the dried carbon cloth into the mixed liquid to be impregnated; transferring the mixed liquid and the carbon cloth into a reaction kettle for a hydrothermal reaction, and then cooling to the room temperature; taking out the carbon cloth, and cleaning and drying the carbon cloth to obtain the carbon cloth loaded with antimony pentoxide in different shapes as the sodium-ion battery negative electrode material. The preparing method is simple in process, short time is consumed, and antimony pentoxide in different shapes is controllably generated on the carbon cloth.

Description

technical field [0001] The invention belongs to the technical field of flexible energy storage materials, and relates to a preparation method of a carbon cloth material loaded with antimony pentoxide of different shapes and its application in a negative electrode of a sodium ion battery. Background technique [0002] As an electrochemical energy storage device, batteries are widely used in all aspects of social life. Lithium-ion batteries are currently the most widely used. With the massive exploitation of lithium resources, the problem of its reserves has to be considered. Therefore, Na-ion batteries, which are rich in resources and relatively low in cost, have attracted widespread attention and are expected to become another energy storage device after Li-ion batteries. The most important part of the battery is the positive and negative electrodes of the battery, and its electrochemical performance directly affects the performance of the full battery. Therefore, in-depth ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/47H01M4/04H01M4/1391H01M4/48H01M10/054D06M101/40
CPCD06M11/47D06M2101/40H01M4/0402H01M4/049H01M4/1391H01M4/483H01M10/054Y02E60/10
Inventor 费杰王娜黄剑锋曹丽云许占位李嘉胤郑欣慧李盟
Owner SHAANXI UNIV OF SCI & TECH
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