Vanadium-doped lithium nickel cobalt manganese oxide nanometer material and preparation method and application thereof

A lithium-nickel-cobalt-manganese and nanomaterial technology is applied in the fields of nanomaterials and electrochemistry to achieve the effects of high power, favorable market promotion and strong feasibility

Active Publication Date: 2016-01-27
安徽国芯新材料股份有限公司
View PDF8 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a small amount of vanadium-substituted LiNi ...

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
  • Vanadium-doped lithium nickel cobalt manganese oxide nanometer material and preparation method and application thereof
  • Vanadium-doped lithium nickel cobalt manganese oxide nanometer material and preparation method and application thereof
  • Vanadium-doped lithium nickel cobalt manganese oxide nanometer material and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Vanadium doped lithium nickel cobalt manganese oxide LiNi 1 / 3 co 1 / 3 mn 1 / 3 o 2 The preparation method of nanometer material, it comprises the steps:

[0033] 1) 2.6284g nickel sulfate (NiSO 4 ), 2.8115g cobalt sulfate (CoSO 4 ), 1.6395g manganese sulfate (MnSO 4 ) (Ni:Co:Mn=1:1:0.99) was added into 15mL of deionized water, stirred and dissolved at room temperature, and a wine red metal salt solution was obtained;

[0034] 2) take by weighing 3.1797g sodium carbonate (Na 2 CO 3 ) (sodium carbonate and metal salt molar ratio is 1:1) joins 15mL deionized water, stirs and dissolves at normal temperature, obtains transparent precipitant solution;

[0035] 3) Measure 0.42ml concentrated ammonia water (NH 3 ·H 2 0) add to 20ml deionized water for dilution, ammonia solution is used as bottom solution, metal salt solution and precipitant solution in step 1) and 2) are added simultaneously, control reaction system pH at about 8.0, obtain pink after sample dripping finish...

Embodiment 2

[0044] Vanadium doped lithium nickel cobalt manganese oxide LiNi 1 / 3 co 1 / 3 mn 1 / 3 o 2 The preparation method of nanometer material, it comprises the steps:

[0045] 1) 2.6284g nickel sulfate (NiSO 4 ), 2.8115g cobalt sulfate (CoSO 4 ), 1.6395g manganese sulfate (MnSO 4 ) (Ni:Co:Mn=1:1:0.99) was added into 15mL of deionized water, stirred and dissolved at room temperature, and a wine red metal salt solution was obtained;

[0046] 2) Weigh 1.5899g sodium carbonate (Na 2 CO 3 ) and 1.1859g ammonium bicarbonate (NH 4 HCO 3 )(Na 2 CO 3 :NH 4 HCO 3 : metal salt=1:1:2) was added into 15mL deionized water, stirred and dissolved at normal temperature to obtain a transparent precipitant solution;

[0047] 3) Measure 0.42ml concentrated ammonia water (NH 3 ·H 2 0) add to 20ml deionized water for dilution, ammonia solution is used as bottom solution, metal salt solution and precipitant solution in step 1) and 2) are added simultaneously, control reaction system pH at abou...

Embodiment 3

[0053] Vanadium doped lithium nickel cobalt manganese oxide LiNi 1 / 3 co 1 / 3 mn 1 / 3 o 2 The preparation method of nanometer material, it comprises the steps:

[0054] 1) 2.6284g nickel sulfate (NiSO 4 ), 2.8115g cobalt sulfate (CoSO 4 ), 1.6395g manganese sulfate (MnSO 4 ) (Ni:Co:Mn=1:1:0.99) was added into 15mL of deionized water, stirred and dissolved at room temperature, and a wine red metal salt solution was obtained;

[0055] 2) take by weighing 3.1797g sodium carbonate (Na 2 CO 3 ) (sodium carbonate and metal salt molar ratio is 1:1) joins 15mL deionized water, stirs and dissolves at normal temperature, obtains transparent precipitant solution;

[0056] 3) Measure 0.42ml concentrated ammonia water (NH 3 ·H 2 0) add to 20ml deionized water for dilution, ammonia solution is used as bottom solution, metal salt solution and precipitant solution in step 1) and 2) are added simultaneously, control reaction system pH at about 8.0, obtain pink after sample dripping fini...

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

PropertyMeasurementUnit
Discharge capacityaaaaaaaaaa
Login to view more

Abstract

The invention relates to a preparation method of a vanadium-doped lithium nickel cobalt manganese oxide nanometer material. The material which can be taken as an active cathode material for lithium ion batteries is of an alpha-NaFeO2 laminated structure, and belongs to an R3m space group; the particle size of the material is 100-300 nm; and particles are stuck together. The vanadium-doped lithium nickel cobalt manganese oxide LiNi1/3Co1/3Mn1/3O2 nanometer material is prepared through the combination with a simple and practicable coprecipitation method and a solid phase sintering method; when the material is taken as the active cathode material for lithium ion batteries, the material has the characteristics of high power and good cycling stability; and secondly, the preparation method is simple in technology, a precursor slurry can be obtained through simple and practicable parallel flow feeding, and the vanadium-doped lithium nickel cobalt manganese oxide nanometer material can be obtained by carrying out centrifugal washing and drying and solid phase sintering in air atmosphere on the slurry. The method is high in practicability and easy for magnification, accords with the characteristic of green chemistry, and is beneficial for market popularization.

Description

technical field [0001] The invention belongs to the technical field of nanomaterials and electrochemistry, in particular to vanadium doped lithium nickel cobalt manganese oxide (LiNi 1 / 3 co 1 / 3 mn 1 / 3 o 2 ) A preparation method of a nanometer material, which can be used as a positive electrode active material for a lithium ion battery. Background technique [0002] Today, in order to further promote the rapid development of the field of electric vehicles, the study of high-capacity, high-power, high-stability, good temperature adaptability and low-cost lithium-ion batteries based on new nanostructures is the frontier of lithium-ion battery research in the current low-carbon economy era and one of the hotspots. LiNi 1 / 3 co 1 / 3 mn 1 / 3 o 2 Integrated LiNiO 2 , LiCoO 2 and LiMnO 2 The advantages of these 3 types of materials form the LiNiO 2 / LiCoO 2 / LiMnO 2 The co-solution system, there is an obvious ternary synergistic effect. With the advantages of low price, ...

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): H01M4/36H01M4/505H01M4/525H01M10/0525B82Y30/00
CPCB82Y30/00H01M4/362H01M4/505H01M4/525H01M10/0525Y02E60/10
Inventor 麦立强胡正耀王洛洛
Owner 安徽国芯新材料股份有限公司
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