Preparation method of manganese-containing electrode material

An electrode material, manganese acetate technology, applied in the direction of positive electrode, battery electrode, active material electrode, etc., can solve the problems of poor cycle performance, limited promotion, etc., to improve electrical conductivity, improve electronic conductivity and charge and discharge long cycle stability sexual effect

Pending Publication Date: 2021-02-19
XUZHOU UNIV OF TECH
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Manganese-containing electrode materials are widely used in the fields of lithium-ion batteries, sodium-ion batteries and potassium-ion batteries. Manganese-containing electrode materials have the advantages of abundant resources, low cost, no p...

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
  • Preparation method of manganese-containing electrode material
  • Preparation method of manganese-containing electrode material
  • Preparation method of manganese-containing electrode material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] The present invention will be further described below in conjunction with embodiment.

[0022] like figure 1 and figure 2 As shown, the invention provides a kind of preparation method of manganese-containing electrode material, comprises the following steps:

[0023] Step 1: Dissolve 6mmol EDTA-2Na and 5.25mmol manganese acetate in a mixture of water and ethanol, stir and dissolve;

[0024] Step 2: Add 20 mmol of potassium fluoride solution to the above solution, and at this time, the solution is in a state where the composite product EDTA-Mn and the precipitant KF coexist;

[0025] Step 3: dissolving cobalt acetate in water, and adding it dropwise to the above coexisting liquid under continuous stirring;

[0026] Step 4: Divide the above coexisting liquid into three parts, and continue the reaction at 30°C, 40°C and 50°C respectively, and centrifuge to obtain solid products, which are respectively marked as K(Mn 0.95 co 0.05 )F 3 -30, K (Mn 0.95 co 0.05 )F 3 ...

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

A preparation method of a manganese-containing electrode material is characterized by comprising the following steps of: dissolving 6mmol of EDTA-2Na and 5.25 mmol of manganese acetate in a mixed solution of water and ethanol, stirring and dissolving; adding 20 mmol of KF into the solution obtained in the previous step; dissolving cobalt acetate into water, and dropwise adding the solution into the coexisting liquid under continuous stirring; dividing the coexisting liquid into three parts, continuing to react at 30 DEG C, 40 DEG C and 50 DEG C respectively, carrying out centrifugal separationto obtain solid products, and marking the solid products as K (Mn<0.95>Co<0.05>) F<3>-30, K (Mn<0.95>Co<0.05>) F<3>-40 and K (Mn<0.95>Co<0.05>) F<3>-50 respectively; and washing the solid products with ethanol and distilled water for multiple times, collecting and drying the solid products at 60 DEG C for later use. The method can effectively inhibit the dissolution of manganese in the electrolyte, and can effectively improve the cycle performance of manganese.

Description

technical field [0001] The invention belongs to the technical field of battery electrodes, and in particular relates to a preparation method of a manganese-containing electrode material. Background technique [0002] Manganese-containing electrode materials are widely used in the fields of lithium-ion batteries, sodium-ion batteries and potassium-ion batteries. Manganese-containing electrode materials have the advantages of abundant resources, low cost, no pollution, good safety, and good rate performance. It is an ideal positive electrode material for power batteries, but due to the dissolving characteristics of manganese in the electrolyte, it has poor cycle performance, which greatly limits its industrialization. In order to promote the industrialization of manganese electrode materials, it is urgent to provide a method that can improve the cycle performance of manganese electrode materials. Contents of the invention [0003] Aiming at the above-mentioned problems in t...

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
IPC IPC(8): C01G45/00H01M4/58H01M10/054B82Y40/00
CPCC01G45/006H01M4/582H01M10/054B82Y40/00H01M2004/028C01P2004/04C01P2006/40C01P2004/30Y02E60/10
Inventor 王舒娅郑红
Owner XUZHOU UNIV OF TECH
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