Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Preparation method of solid-state sodium-ion battery electrolyte

A sodium ion battery and electrolyte technology, applied in the field of sodium ions, can solve the problems of high ionic conductivity, no

Inactive Publication Date: 2017-12-15
卢荣红
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, a key challenge in the development of solid-state Na-ion batteries is that Na-ion solid electrolytes do not have high ionic conductivity at room temperature.

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 solid-state sodium-ion battery electrolyte

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Sodium sulfide was dissolved in 1L deionized water, then placed in a constant temperature water bath and heated to 80°C, and sodium antimonate and NH4F were added. The mass ratio of sodium sulfide, sodium antimonate and NH4F was 3.5:1:0.5. After stirring slowly for 4 hours, it was naturally cooled to room temperature and filtered. Dry in an oven at 80°C, then place in a furnace tube, heat to 300°C for reaction, pass in argon as a protective atmosphere, keep warm for 2 hours, and then cool naturally to room temperature. form Na 2.5 Sb 3.5 f 0.5 Lumpy solid where x = 0.5.

Embodiment 2

[0014] Sodium sulfide was dissolved in 1L of deionized water, then placed in a constant temperature water bath and heated to 90°C, and sodium antimonate and NH4F were added. The mass ratio of sodium sulfide, sodium antimonate and NH4F was 1.5:1:2.5. After stirring slowly for 3 hours, it was naturally cooled to room temperature and filtered. Dry it in an oven at 80°C, then put it in a furnace tube, heat it to 400°C for reaction, pass in argon as a protective atmosphere, keep it warm for 1 hour, and then cool it down to room temperature naturally. form Na 0.5 Sb 1.5 f 0.5 Lumpy solid where x = 2.5.

Embodiment 3

[0016] Sodium sulfide was dissolved in 1L deionized water, then placed in a constant temperature water bath and heated to 90°C, and sodium antimonate and NH4F were added. The mass ratio of sodium sulfide, sodium antimonate and NH4F was 3:1:1. After stirring slowly for 3 hours, it was naturally cooled to room temperature and filtered. Dry in an oven at 70°C, then place in a furnace tube, heat to 300°C for reaction, pass in argon as a protective atmosphere, keep warm for 1 hour, and then cool naturally to room temperature. form Na 2 Sb 3 F Lumpy solid where x=1.

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
Conductivityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method of solid-state sodium-ion battery electrolyte. The preparation method comprises the following steps: dissolving sodium sulfide into 1L of deionized water; heating the mixed solution in a thermostat water bath to 80-90 DEG C; adding sodium antimonite and NH4F into the mixed solution, wherein the mass ratio of sodium sulfide, sodium antimonite and NH4F is 3.5-1.5:1:0.5-2.5; slowing stirring the mixed solution for 3-4h, naturally cooling to room temperature and filtering; drying at the temperature of 70-80 DEG C in a drying box and then heating up to 300-400 DEG C for a reaction in a furnace tube. The chemical formula of the prepared solid-state sodium-ion battery electrolyte is Na3-xSbS4-xFx, the electrolyte contains F ions, is in a nano-structure and is formed by stacked nanosheets; a lot of gaps are contained between every two adjacent nanosheets. The doped F ions provide an efficient channel for conductive ions. When the electrolyte is applied in a sodium-ion battery, the rate capability and the cycling stability of the battery can be enhanced.

Description

technical field [0001] The invention relates to the field of sodium ions, in particular to a method for preparing an electrolyte for a solid-state sodium ion battery. Background technique [0002] In recent years, with the rapid development of electronic equipment, electric tools, and low-power electric vehicles, research on energy storage materials with high energy efficiency, abundant resources, and environmental friendliness has become an irresistible trend. In order to meet the large-scale market demand, it is far from enough to measure battery materials only by energy density, charge-discharge rate and other properties. Whether the manufacturing cost and energy consumption of batteries pollute the environment and the recycling rate of resources will also become important indicators for evaluating battery materials. [0003] Sodium is one of the most abundant elements on the earth. It has similar chemical properties to lithium. However, sodium-ion batteries have many ad...

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): H01M10/0562H01M10/054
CPCH01M10/054H01M10/0562H01M2300/008Y02E60/10
Inventor 卢荣红王可健王晨逸
Owner 卢荣红
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
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