Independent self-supporting positive electrode material and preparation method thereof, and aluminum ion battery and preparation method thereof

A technology of aluminum ion battery and positive electrode material, which is applied in the manufacture of electrolyte batteries, battery electrodes, secondary batteries, etc., can solve the problems of lack of electrode structure, poor battery cycle performance, etc. cloth effect

Inactive Publication Date: 2019-05-21
JIANGSU UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the lack of a reasonable electrode structure, the battery exhibits poor cycle performance

Method used

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  • Independent self-supporting positive electrode material and preparation method thereof, and aluminum ion battery and preparation method thereof
  • Independent self-supporting positive electrode material and preparation method thereof, and aluminum ion battery and preparation method thereof
  • Independent self-supporting positive electrode material and preparation method thereof, and aluminum ion battery and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0023] This embodiment provides an independent self-supporting positive electrode material for an aluminum ion battery, the positive electrode material is made of Co 3 S 4 A binder-free material composited with carbon nanotubes, Co 3 S 4 Uniformly distributed in the gaps or surfaces of carbon nanotubes, Co 3 S 4 The mass percentage in the positive electrode material is 30%.

[0024] The preparation method of the above-mentioned independent self-supporting positive electrode material is as follows:

[0025] Acidification of carbon nanotubes: Weigh 1g of carbon nanotubes, put 60ml of sulfuric acid and 20ml of nitric acid into a beaker and mix them with a graduated cylinder, then pour the carbon nanotubes and mixed acid into a three-necked flask for reflux treatment, and put a magnetic rotor during reflux Stir, the reflux temperature is 80°C, and the reflux time is 1 hour. After the reflux is completed, take it out, add distilled water to dilute, filter and wash, and then p...

Embodiment approach 2

[0034] This embodiment provides an independent self-supporting positive electrode material for an aluminum ion battery, the positive electrode material is made of CoS 2 A binder-free material composited with carbon nanotubes, CoS 2 Uniformly distributed in the interstices or on the surface of carbon nanotubes, CoS 2 The mass percentage in the positive electrode material is 35%.

[0035] The preparation method of the above-mentioned independent self-supporting positive electrode material is as follows:

[0036] Acidification of carbon nanotubes: exactly the same as Embodiment 1.

[0037] Compounding of cobalt sulfide and acidified carbon nanotubes: Weigh 0.4g cobalt chloride hexahydrate, 0.6g cysteine ​​and 0.3g acidified carbon nanotubes, put them into 60ml distilled water and stir for 30 minutes, then ultrasonic for 15 minutes , put it into a hydrothermal reaction kettle for 20 hours at 160°C to react for 20 hours, after obtaining the black product, wash it with distilled ...

Embodiment approach 3

[0040] This embodiment provides an independent self-supporting positive electrode material for aluminum ion batteries. The positive electrode material is a binder-free material composed of CoS and carbon nanotubes. CoS is evenly distributed in the gaps or surfaces of carbon nanotubes. CoS The mass percentage in the positive electrode material is 27%.

[0041] The preparation method of the above-mentioned independent self-supporting positive electrode material is as follows:

[0042] Acidification of carbon nanotubes: exactly the same as Embodiment 1.

[0043] Compounding of cobalt sulfide and acidified carbon nanotubes: Weigh 0.4g cobalt chloride hexahydrate, 0.35g sodium thiosulfate and 0.3g acidified carbon nanotubes, put them into 60ml distilled water and stir for 30 minutes, then ultrasonic for 15 minutes, Put it in a hydrothermal reaction kettle and react at 160°C for 20 hours. After the black product is obtained, wash it three times with distilled water and ethanol, fil...

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Abstract

The invention relates to the field of aluminum ion batteries, and discloses an independent self-supporting positive electrode material and a preparation method thereof, and an aluminum ion battery anda preparation method thereof. The aluminum ion battery comprises a positive electrode, a negative electrode, a diaphragm and an ionic liquid electrolyte, wherein the positive electrode is a non-adhesive material prepared by growing cobalt sulfide on a conductive carbon substrate. The battery is characterized in that the positive electrode of the battery is a composite of the cobalt sulfide and the conductive carbon matrix, and is an independent self-supporting material without an adhesive, thereby avoiding the problem of battery internal resistance caused by the adhesive. The aluminum ion battery has many advantages of being low in price, stable in circulation, wide in voltage window, clean and environmentally friendly, high in safety and the like, and can be applied to various fields such as electronic industries, communication industries, energy reserves and the like.

Description

technical field [0001] The invention relates to the technical field of energy storage batteries, in particular to an independent self-supporting anode material for an aluminum ion battery and a preparation method thereof, an aluminum ion battery using the anode material and a preparation method thereof. Background technique [0002] In recent years, with the gradual depletion of traditional energy sources and the increasingly serious environmental problems, the new energy industry has received more and more attention. Among them, the development speed of lithium ion battery is very fast, but its safety problem and higher cost limit its development. Aluminum-ion batteries are expected to make up for this shortcoming and are attracting people's attention. [0003] Rechargeable aluminum-ion batteries (AIBs) have been considered as a new generation of large-scale energy storage devices due to their attractive properties of abundant aluminum source, high specific capacity, and h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M4/36H01M4/58H01M4/62H01M4/1397H01M10/058H01M10/054
CPCY02E60/10Y02P70/50
Inventor 杨建红陈庆安乔佳苗果
Owner JIANGSU UNIV
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