Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method of nest-like Sb2Se3 electrode material for sodium ion battery negative electrode

A technology for sodium ion batteries and electrode materials, applied in battery electrodes, nanotechnology for materials and surface science, secondary batteries, etc. , High electrochemical capacity, short cycle effect

Active Publication Date: 2017-06-13
SHAANXI UNIV OF SCI & TECH
View PDF3 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The use of these organic solvents is prone to danger in the preparation process, and the production cost is high, and the environmental pollution is also relatively large

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 nest-like Sb2Se3 electrode material for sodium ion battery negative electrode
  • Preparation method of nest-like Sb2Se3 electrode material for sodium ion battery negative electrode
  • Preparation method of nest-like Sb2Se3 electrode material for sodium ion battery negative electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026]1) Add 0.675 g of antimony potassium tartrate into 50 mL of deionized water, and magnetically stir until the antimony potassium tartrate is completely dissolved to obtain a mixed solution A, the stirring speed is 500 r / min, and the stirring time is 20 min;

[0027] 2) Disperse 0.2369g of selenium powder in 3ml of hydrazine hydrate (50% by mass), stir magnetically for 40min (rotating speed is 500r / min, stirring temperature is 70°C) to obtain mixed solution B;

[0028] 3) Add the mixed solution B to the mixed solution A dropwise to obtain the mixed solution C. The mixed liquid C was ultrasonicated for 90min (ultrasonic power is 80W, ultrasonic temperature is 70°C), and then transferred to a polytetrafluoroethylene hydrothermal kettle, and the polytetrafluoroethylene hydrothermal kettle was placed in a homogeneous reactor (Yantai Keli Chemical Industry Co., Ltd. Equipment Co., Ltd., KLJX-8A) at a temperature of 120 ° C for 24 h, naturally cooled to room temperature after th...

Embodiment 2

[0032] 1) Add 0.6759 g of antimony potassium tartrate into 60 mL of deionized water, and stir magnetically until the antimony potassium tartrate is completely dissolved to obtain the mixed solution A, the stirring speed is 500 r / min, and the stirring time is 20 min;

[0033] 2) Disperse 0.2369g of selenium powder in 5ml of hydrazine hydrate (50% by mass), and ultrasonicate for 7 minutes (ultrasonic power is 120W; ultrasonic temperature is 40°C) to obtain the mixed solution B;

[0034] 3) Add the mixed solution B to the mixed solution A dropwise to obtain the mixed solution C. The mixed liquid C was magnetically stirred for 3h (rotating speed: 500r / min, stirring temperature: 70°C), then transferred to a polytetrafluoroethylene hydrothermal kettle, and the polytetrafluoroethylene hydrothermal kettle was placed in a homogeneous reactor (Yantai Keli Chemical Equipment Co., Ltd., KLJX-8A) at 140 ° C for 18 h, naturally cooled to room temperature after the reaction, and washed sever...

Embodiment 3

[0038] 1) Add 0.7322 g of antimony potassium tartrate into 70 mL of deionized water, and stir magnetically until the antimony potassium tartrate is completely dissolved to obtain a mixed solution A; the stirring speed is 500 r / min, and the stirring time is 20 min;

[0039] 2) Disperse 0.2566g of selenium powder in 7ml of hydrazine hydrate (50% by mass), and stir magnetically for 20min (rotating speed: 700r / min, stirring temperature: 50°C) to obtain mixed solution B;

[0040] 3) Add the mixed solution B to the mixed solution A drop by drop to obtain the mixed solution C. The mixed solution C was ultrasonicated for 60 minutes (ultrasonic power: 100W; ultrasonic temperature: 50°C) and then transferred to a polytetrafluoroethylene hydrothermal kettle, which was placed in a homogeneous reactor (Yantai Keli Chemical Equipment Co., Ltd. Co., Ltd., KLJX-8A) at a temperature of 150 ° C for 12 hours, after the reaction was completed, it was naturally cooled to room temperature, and wash...

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 nest-like Sb2Se3 electrode material for a sodium ion battery negative electrode comprises the following steps: 1) dissolving antimony potassium tartrate into deionized water, and completely stirring to completely dissolve the antimony potassium tartrate to obtain a mixed liquid A; 2) dispersing selenium powder into hydrazine hydrate with mass percentage being 50 percent, and stirring to obtain a mixed liquid B; 3) mixing the obtained mixed liquid B and the mixed liquid A to obtain a mixed liquid C, performing hydrothermal reaction at the temperature of 120 to 180 DEG C for 3 hours to 24 hours, naturally cooling to a room temperature after the reaction, washing and separating precipitate, and freeze-drying the precipitate obtained by separation under the vacuum condition to obtain the Sb2Se3 electrode material. The preparation method is simple in operation, easy in repletion, short in cycle, pollution-free and suitable for large-scale production of the Sb2Se3 electrode materials.

Description

technical field [0001] The invention relates to a kind of bird's nest Sb 2 Se 3 The preparation method of material, be specifically related to a kind of bird's nest shape Sb for sodium ion battery negative electrode 2 Se 3 Preparation method of electrode material. Background technique [0002] In recent years, with the development of social economy, people's demand for materials is increasing. The popularization of various electric vehicles and electronic products has put forward higher requirements for research fields such as energy conversion, energy storage and efficient utilization of energy. Because of its large storage capacity, high theoretical capacity, and similar electrochemical reaction to lithium-ion batteries, sodium-ion batteries have become the most promising substitute for lithium-ion batteries, which are widely used in the market. It is of far-reaching significance to develop a novel, high-capacity and high-stability anode material for Na-ion batteries....

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): H01M10/054H01M4/38B82Y30/00B82Y40/00
CPCB82Y30/00B82Y40/00H01M4/38H01M10/054Y02E60/10
Inventor 曹丽云郭玲李嘉胤黄剑锋程娅伊许占位王彩薇康倩
Owner SHAANXI UNIV OF SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com