Aluminum manganese oxide and application of aluminum manganese oxide as positive electrode material in aqueous magnesium ion capacitor

A technology of oxides and capacitors, applied in the field of materials, to achieve the effect of low toxicity, high theoretical specific capacitance, and reduced band gap

Active Publication Date: 2022-04-08
LIAONING UNIVERSITY
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, only a few reports on aqueous rechargeable Mg-ion batteries are available

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Aluminum manganese oxide and application of aluminum manganese oxide as positive electrode material in aqueous magnesium ion capacitor
  • Aluminum manganese oxide and application of aluminum manganese oxide as positive electrode material in aqueous magnesium ion capacitor
  • Aluminum manganese oxide and application of aluminum manganese oxide as positive electrode material in aqueous magnesium ion capacitor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) aluminum manganese oxide, the preparation method is as follows:

[0027] Weigh 0.01mol of manganese sulfate monohydrate, 0.0024mol of aluminum sulfate octadecahydrate and 0.008mol of potassium permanganate into 50mL of deionized water, stir and dissolve, then add 20mL of sulfuric acid with a concentration of 0.2mol / L dropwise, continue Stir for 24 hours, transfer the resulting mixed solution into a reaction kettle, and conduct a hydrothermal reaction at 180°C for 24 hours to obtain aluminum manganese oxide Al x MnO 2 .

Embodiment 2

[0034] Aluminum manganese oxide, the preparation method is as follows:

[0035] Weigh 0.01mol of manganese sulfate monohydrate, 0.0192mol of aluminum sulfate octadecahydrate and 0.008mol of potassium permanganate into 50mL of deionized water, stir and dissolve, then add 20mL of sulfuric acid with a concentration of 0.2mol / L dropwise, continue Stir for 24 hours, transfer the resulting mixed solution into a reaction kettle, and conduct a hydrothermal reaction at 180°C for 24 hours to obtain aluminum manganese oxide Al x MnO 2 .

Embodiment 3

[0037] Aluminum manganese oxide, the preparation method is as follows:

[0038] Weigh 0.01mol of manganese sulfate monohydrate, 0.024mol of aluminum sulfate octadecahydrate and 0.008mol of potassium permanganate into 50mL of deionized water, stir and dissolve, then add 20mL of sulfuric acid with a concentration of 0.2mol / L dropwise, continue Stir for 24 hours, transfer the resulting mixed solution into a reaction kettle, and conduct a hydrothermal reaction at 180°C for 24 hours to obtain aluminum manganese oxide Al x MnO 2 .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses an aluminum manganese oxide and application of the aluminum manganese oxide as a positive electrode material in a water-based magnesium ion capacitor. The preparation method comprises the following steps: adding manganese sulfate, aluminum sulfate and potassium permanganate into deionized water, stirring and dissolving, dropwise adding sulfuric acid, continuously stirring for 24 hours, transferring the obtained mixed solution into a reaction kettle, and carrying out hydrothermal reaction to obtain the aluminum-manganese oxide. When the aluminum-manganese oxide is used as the positive electrode material to be applied to the water-based magnesium ion capacitor, an electrochemical test shows that the single aluminum-manganese oxide has relatively high specific capacity. And after being assembled with activated carbon to form a device, the high capacitance can still be achieved. The preparation method is simple in synthesis process, economical, environment-friendly and low in price, and is expected to become a novel energy storage device.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to an aluminum-manganese oxide and its application as a positive electrode material in a water-based magnesium ion capacitor. Background technique [0002] With the rapid development of renewable energy such as solar energy, biomass energy, hydropower, and wind energy, as well as the construction of smart grids and the development of micro-grid technology and energy interconnection, energy storage technology is a new challenge that will change the global energy landscape. Electrochemical energy storage has been highly valued due to its application flexibility, high conversion efficiency, and high power density, and is considered to be an important form of energy storage in the future. Among all electrochemical energy storage systems, batteries of different kinds and functions are widely used in daily life and have enabled the wireless revolution of mobile phones, lapto...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): H01G11/30H01G11/58
CPCY02E60/13
Inventor 马天翼丁亚西张思文
Owner LIAONING UNIVERSITY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap