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

A kind of chalcogenide glass-ceramic material containing superionic conductor and its preparation method

A technology of superionic conductor and chalcogenide glass, which is applied in the field of functional glass ceramic materials, can solve the problems of lack of qualitative breakthrough in ionic conductivity, complicated preparation process, poor thermal and chemical properties, etc. The method has the advantages of simple process and high thermal stability

Active Publication Date: 2015-10-28
NINGBO UNIV
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, currently reported AgI-doped chalcogenide glasses or glass-ceramics are mainly prepared by twin-roll method, spin-coating method or high-energy ball milling method. It is difficult to obtain a superionic conductor α-AgI crystal composite glass-ceramic sample after heat treatment, and there has been no qualitative breakthrough in ionic conductivity

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
  • A kind of chalcogenide glass-ceramic material containing superionic conductor and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1: get x value as 45, the molar composition of chalcogenide glass-ceramic material is expressed as 55 (60GeS 2 40Sb 2 S 3 )·45AgI, the reduced molar composition is 33GeS 2 22Sb 2 S 3 45AgI, calculate the weight of raw materials Ge, Sb, S and AgI according to the molar composition, weigh and mix uniformly in a glove box full of inert gas; then put the homogeneously mixed raw materials into a quartz tube, which is pre- Soaked in aqua regia for 2h and washed with deionized water, dried, and then vacuumed, when the vacuum in the quartz tube was 10 -3 Pa is sealed with an oxyacetylene flame; the sealed quartz tube is heated in a swing furnace, and the temperature is raised to 650 °C at a rate of 1 °C / min, and then heated to 950 °C at a rate of 2 °C / min after holding for 2 hours. ℃, swing and melt for 12 hours, then cool down to 810°C at a rate of 2°C / min, take out the quartz tube after standing for 30 minutes, put the quartz tube in ice water and take it out,...

Embodiment 2

[0023] Embodiment 2: get x value as 55, the molar composition of chalcogenide glass-ceramic material is expressed as 45 (60GeS 2 40Sb 2 S 3 )·55AgI, the reduced molar composition is 27GeS 2 18Sb 2 S 3 55AgI, calculate the weight of raw materials Ge, Sb, S and AgI according to the molar composition, weigh and mix uniformly in a glove box full of inert gas; then put the homogeneously mixed raw materials into a quartz tube, which is pre- Soaked in aqua regia for 2h and washed with deionized water, dried, and then vacuumed, when the vacuum in the quartz tube was 10 -3 Pa is sealed with an oxyacetylene flame; the sealed quartz tube is heated in a swing furnace, and the temperature is first raised to 650 °C at a rate of 2 °C / min, and then heated to 920 °C at a rate of 2 °C / min after holding for 2 hours. ℃, swing and melt for 12 hours, then cool down to 800°C at a rate of 1°C / min, take out the quartz tube after standing for 30 minutes, put the quartz tube in ice water and take i...

Embodiment 3

[0025] Embodiment 3: get x value as 60, the molar composition of chalcogenide glass-ceramic material is expressed as 40 (60GeS 2 40Sb 2 S 3 )·60AgI, the reduced molar composition is 24GeS 2 16Sb 2 S 3 60AgI, calculate the weight of raw materials Ge, Sb, S and AgI according to the molar composition, weigh and mix uniformly in a glove box full of inert gas; then put the homogeneously mixed raw materials into a quartz tube, which is pre- Soaked in aqua regia for 2h and washed with deionized water, dried, and then vacuumed, when the vacuum in the quartz tube was 10 -3 Pa is sealed with an oxyacetylene flame; the sealed quartz tube is heated in a swing furnace, and the temperature is raised to 670°C at a rate of 3°C / min, and then heated to 900°C at a rate of 2°C / min after holding for 2 hours. ℃, swing and melt for 12 hours, then cool down to 780°C at a rate of 1°C / min, take out the quartz tube after standing for 30 minutes, put the quartz tube in ice water to cool, take it out...

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

The invention discloses a superionic-conductor-containing sulfur glass ceramic material. The chemical formula of the sulfur glass ceramic material according to the mol composition is (100-x)(60GeS2.40Sb2S3).xAgI, wherein x=30-60. The preparation method comprises the following steps: melting base glass in vacuum by a melting quenching process, and carrying out crystallization heat treatment on the molten base glass to obtain the superionic-conductor-containing sulfur glass ceramic material. The sulfur glass ceramic material contains alpha-AgI crystal, and the alpha-AgI crystal used as a superionic conductor greatly enhances the ionic conductivity of the material; the preparation method is simple in technique; the ionic conductivity of the sulfur glass ceramic material prepared by the method is enhanced by 1-2 orders of magnitude as compared with the base glass; and meanwhile, the sulfur glass ceramic material has high heat stability.

Description

technical field [0001] The invention relates to a chalcogenide glass ceramic material containing a superionic conductor and a preparation method thereof, belonging to the field of functional glass ceramic materials. Background technique [0002] Solid electrolytes for all-solid-state batteries have been a research hotspot in the field of fast ionic conductors. Inorganic conductor materials are more thermally stable and less hazardous from leakage and contamination than polymeric organic ion conductor materials. In recent years, especially the research on glass and glass-ceramic solid electrolytes has begun to make breakthroughs. Compared with crystalline materials, glass materials have many advantages as solid-state electrolytes. First, there are a large number of defects in the internal structure of the glass, which provides a large number of vacancies for ion migration. Second, the glass material is macroscopically isotropic, and the ion diffusion channels are isotropic...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/16
Inventor 林常规李卓斌戴世勋聂秋华徐铁峰
Owner NINGBO UNIV