Aluminum ion battery and preparation method thereof

A technology for aluminum ion batteries and ionic liquids, which is applied in the manufacture of electrolyte batteries, secondary batteries, battery electrodes, etc., can solve the problems of polyaniline/ordered mesoporous carbon composite aluminum ion battery cathode materials that have not been reported, and achieve good results. The effects of insulation, simple preparation method, and abundant resources

Inactive Publication Date: 2018-11-13
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] So far, no patent or literature has reported polyaniline / ordered mesoporous carbon composites as anode materials for aluminum-ion batteries.

Method used

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  • Aluminum ion battery and preparation method thereof
  • Aluminum ion battery and preparation method thereof
  • Aluminum ion battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] 1 g of ordered mesoporous carbon CMK-3 was ultrasonically mixed with 200 mL of 20% ethanol solution containing 2.8 g of aniline and 20 g of concentrated sulfuric acid for 20 min, and placed in a vacuum box at room temperature for 1 h. The resulting suspension was transferred to an ice-water bath, and 200 mL of 20% ethanol solution without aniline and sulfuric acid was added rapidly. 1 mL, 6.44 g / mL ammonium persulfate solution was added dropwise under stirring condition, and stirring was continued at 0° C. for 5 h. The resulting blue-green suspension was suction-filtered, washed three times with deionized water and ethanol, and dried in an oven at 60°C. The SEM image of the obtained polyaniline / ordered mesoporous carbon composite image 3 shown.

[0033] 30 mg of the above polyaniline / ordered mesoporous carbon composite material, 3.75 mg of PVDF, and 3.75 mg of conductive carbon black were uniformly mixed and ground for 20 min, dispersed in 1 mL of NMP solution, and u...

Embodiment 2

[0038] 1 g of ordered mesoporous carbon CMK-3 was ultrasonically mixed with 200 mL of 20% ethanol solution containing 2.8 g of aniline and 20 g of concentrated sulfuric acid for 20 min, and placed in a vacuum box at room temperature for 1 h. The resulting suspension was transferred to an ice-water bath, and 200 mL of 20% ethanol solution without aniline and sulfuric acid was added rapidly. 1 mL, 6.44 g / mL ammonium persulfate solution was added dropwise under stirring condition, and stirring was continued at 0° C. for 5 h. The resulting blue-green suspension was suction-filtered, washed three times with deionized water and ethanol, and dried in an oven at 60°C.

[0039] 120mg of the above polyaniline / ordered mesoporous carbon composite material, 15mg of PVDF and 15mg of conductive carbon black were uniformly mixed and ground for 30min, dispersed in 5mL of NMP solution, and ultrasonically dispersed for 30min. Take 550 μL of the above-mentioned uniformly mixed liquid and add it ...

Embodiment 3

[0044] 1 g of ordered mesoporous carbon CMK-3 was ultrasonically mixed with 200 mL of 20% ethanol solution containing 2.8 g of aniline and 20 g of concentrated sulfuric acid for 20 min, and placed in a vacuum box at room temperature for 1 h. The resulting suspension was transferred to an ice-water bath, and 200 mL of 20% ethanol solution without aniline and sulfuric acid was added rapidly. 1 mL, 6.44 g / mL ammonium persulfate solution was added dropwise under stirring condition, and stirring was continued at 0° C. for 5 h. The resulting blue-green suspension was suction-filtered, washed three times with deionized water and ethanol, and dried in an oven at 60°C.

[0045] 30 mg of the above polyaniline / ordered mesoporous carbon composite material, 3.75 mg of PVDF, and 3.75 mg of conductive carbon black were uniformly mixed and ground for 20 min, dispersed in 1 mL of NMP solution, and ultrasonically dispersed for 30 min. Take 50 μL of the above-mentioned mixed homogeneous liquid ...

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Abstract

The invention relates to an aluminum ion battery and a preparation method thereof, and belongs to the technical field of high-performance batteries. The aluminum ion battery comprises an anode, a cathode, a diaphragm and an electrolyte, wherein the anode comprises a current collector and an active substance; the main component of the active substance is polyaniline/ordered mesoporous carbon composite material; the cathode is a high-purity aluminum sheet or aluminum foil; the diaphragm is a glass fiber diaphragm; the electrolyte is an aluminum-containing room-temperature melting ionic liquid. The aluminum ion battery has the advantages that the cycle property is good, the specific capacity is high, the rate property is good, the coulomb efficiency is high, and the like; the sources of the electrode material are wide, the cost is low, and the preparation method is simple; the aluminum ion battery can be widely applied to multiple fields, such as portable electronic equipment, electric automobiles and communication industry.

Description

technical field [0001] The invention relates to an aluminum ion battery and a preparation method thereof, belonging to the technical field of high-performance batteries. Background technique [0002] Lithium-ion batteries are widely used in mobile communications, electric vehicles and other fields due to their high energy density, long cycle life, and high operating voltage. However, the reserve of lithium element is extremely low, and the organic electrolyte commonly used for lithium ion is flammable and explosive, and its safety is poor. Therefore, it is urgent to develop a new energy storage system. Aluminum ranks third in reserves in the earth's crust and is the metal element with the largest reserves in the earth's crust. The annual mining amount is more than 1,000 times that of lithium, and the price is low. Moreover, the ionic liquid used has the advantages of no vapor pressure and non-flammability, which greatly improves the safety performance of aluminum-ion batter...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/36H01M4/60H01M4/62H01M4/38H01M10/0566H01M2/16H01M10/054H01M10/058
CPCH01M4/362H01M4/38H01M4/602H01M4/625H01M10/054H01M10/0566H01M10/058H01M50/431H01M50/44Y02E60/10Y02P70/50
Inventor 邢伟廖逸飞高秀丽徐静杨广武李彦鹏白鹏刘振王钊
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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