Unlock instant, AI-driven research and patent intelligence for your innovation.

Prismatic assembly ball shaped SnO2 sodium-ion battery anode material and preparation method thereof

A sodium ion battery and negative electrode material technology, applied in battery electrodes, negative electrodes, secondary batteries, etc., can solve the problems of large ion radius and difficulty in finding sodium intercalation materials, and achieve high capacity retention rate, short preparation cycle and high purity high effect

Active Publication Date: 2016-04-27
SHAANXI UNIV OF SCI & TECH
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with lithium ions, sodium ions have a larger ionic radius (0.102nmvs.0.076nmofLi), which makes it difficult to find suitable sodium intercalation materials.

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
  • Prismatic assembly ball shaped SnO2 sodium-ion battery anode material and preparation method thereof
  • Prismatic assembly ball shaped SnO2 sodium-ion battery anode material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A prism-assembled spherical SnO 2 A preparation method for a negative electrode material for a sodium ion battery, comprising the following steps:

[0022] 1) SnCl 4 ·5H 2 O was dissolved in deionized water and prepared into a solution A with a concentration of 0.4mol / L; according to the mass ratio m SnCl4·5H2O :m C6H12N4 =1:0.3 will hexamethylenetetramine (C 6 h 12 N 4 ) was added into an equal amount of deionized water to prepare solution B;

[0023] 2) Slowly add solution B to solution A under continuous magnetic stirring to form uniform solution C, add 0.5mol / L NaOH solution E dropwise to solution C to form solution D, and then continue to stir for 0.5; the volume of solution C is the same as that of solution E The volume ratio is 5:1;

[0024] 3) After the reaction is finished, put the D solution into the hydrothermal reaction kettle and seal it, put it into a homogeneous hydrothermal reaction apparatus, control the reaction temperature at 120°C, and contro...

Embodiment 2

[0028] A prism-assembled spherical SnO 2 A preparation method for a negative electrode material for a sodium ion battery, comprising the following steps:

[0029] 1) SnCl 4 ·5H 2 O was dissolved in deionized water and prepared into a solution A with a concentration of 1.3mol / L; according to the mass ratio m SnCl4·5H2O :m C6H12N4 =1:1.0 will hexamethylenetetramine (C 6 h 12 N 4 ) was added into an equal amount of deionized water to prepare solution B;

[0030] 2) Under the action of continuous magnetic stirring, slowly add solution B to solution A to form uniform solution C, add 1.5mol / L NaOH solution E dropwise to solution C to form solution D, and then continue to stir for 0.5; the volume of solution C is the same as that of solution E The volume ratio is 3:2;

[0031] 3) After the reaction is finished, put the D solution into the hydrothermal reaction kettle and seal it, put it into a homogeneous hydrothermal reaction apparatus, control the reaction temperature at 18...

Embodiment 3

[0034] A prism-assembled spherical SnO 2 A preparation method for a negative electrode material for a sodium ion battery, comprising the following steps:

[0035] 1) SnCl 4 ·5H 2 O was dissolved in deionized water and prepared into a solution A with a concentration of 0.9mol / L; according to the mass ratio m SnCl4·5H2O :m C6H12N4 =1:1.5 will hexamethylenetetramine (C 6 h 12 N 4 ) was added into an equal amount of deionized water to prepare solution B;

[0036] 2) Slowly add solution B to solution A under continuous magnetic stirring to form uniform solution C, add 1.0mol / L NaOH solution E dropwise to solution C to form solution D, and then continue stirring 2; the volume of solution C is the same as that of solution E The volume ratio is 2:4;

[0037] 3) After the reaction is finished, put the solution D into a hydrothermal reactor and seal it, put it into a homogeneous hydrothermal reactor, control the reaction temperature at 240°C, and control the reaction time at 48h...

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
Lengthaaaaaaaaaa
Cell parametersaaaaaaaaaa
Lengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a prismatic assembly ball shaped SnO2 sodium-ion battery anode material and a preparation method thereof. The preparation method of the prismatic assembly ball shaped SnO2 sodium-ion battery anode material comprises the following steps: 1) independently dissolving SnCl4.5H2O and C6H12N4 into deionized water, and preparing to obtain solution A and solution B; 2) under a function of continuous magnetic stirring, slowly adding the solution B into the solution A to form even solution C, and adding NaOH solution E into the solution C dropwise to form solution D; 3) carrying out homogeneous phase hydrothermal reaction; and 4) after the reaction ends, taking out a precursor, washing to obtain the white precursor, and freezing and drying to obtain the prismatic assembly ball shaped SnO2 sodium-ion battery anode material. The preparation method has the advantages of being low in cost, simple in operation and short in preparation period. The prepared prismatic assembly ball shaped SnO2 sodium-ion battery anode material is characterized in that the length of a prismatic block is 500nm, the diameter of the prismatic block is 30nm, the size of the assembly ball is about tens of micrometers, and the assembly ball has the advantages of high purity, high crystallinity and even morphology and has a high volume retention rate when the assembly ball is applied to the sodium-ion battery anode.

Description

technical field [0001] The invention relates to the technical field of sodium ion batteries, in particular to a negative electrode material for a sodium ion battery and a preparation method thereof. Background technique [0002] Sodium-ion battery is a new type of electrochemical power source, which has the advantages of abundant raw material resources, low cost, high specific capacity and high efficiency, and is more in line with the requirements of large-scale energy storage applications. It has application potential in improving power utilization efficiency and power quality. At the same time, due to its significant advantages such as high specific capacity, light weight, long life and no memory, it also has a wide range of applications in aerospace, hybrid electric vehicles and portable electronic devices. . In this context, sodium-ion batteries have attracted worldwide attention in recent years, and research on key materials and related technologies has progressed rapi...

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): H01M4/48H01M4/131H01M4/1391H01M10/054
CPCH01M4/131H01M4/1391H01M4/483H01M10/054H01M2004/027Y02E60/10
Inventor 殷立雄柴思敏刘长青马建中黄剑锋王菲菲孔新刚
Owner SHAANXI UNIV OF SCI & TECH
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com