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

Electrochromic material and preparation method and application thereof, and battery

An electrochromic material and electrochromic technology, applied in nanotechnology for materials and surface science, chemical instruments and methods, inorganic chemistry, etc.

Pending Publication Date: 2021-06-04
SHANGHAI TECH UNIV
View PDF2 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, traditional electrochromic materials have certain challenges in response speed, coloring rate, stability, etc.

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
  • Electrochromic material and preparation method and application thereof, and battery
  • Electrochromic material and preparation method and application thereof, and battery
  • Electrochromic material and preparation method and application thereof, and battery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] A specific electrochromic material Nb is disclosed in this embodiment 18 W 16 o 93 The preparation method is as follows:

[0049] 1) Dissolve 0.2g of ammonium metatungstate, 0.4914g of niobium oxalate, and 1.0g of citric acid in 2mL of deionized water and 8mL of ethanol, and stir continuously until a homogeneous transparent solution is obtained. While continuing to stir, react at 60°C for 2h A sol-gel precursor solution is obtained.

[0050] 2) Sonicate the FTO conductive glass (20mm*30mm*2.2mm) in acetone, isopropanol, ethanol and deionized water for 10 minutes respectively, purge it with a nitrogen gun, and place it in O 2 Clean in a plasma cleaner for 10 minutes and set aside. The sol-gel precursor solution was uniformly spin-coated on the cleaned FTO conductive glass surface using a spin coater.

[0051] 3) Put the spin-coated thin film attached to the FTO conductive glass in an oven at 150° C. for 1 hour.

[0052] 4) After taking out the film, place it in a m...

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 provides an application of Nb18W16O93 as an electrochromic material, an electrochromic composite material and a preparation method and application thereof, and a battery. The electrochromic material disclosed by the invention is Nb18W16O93, and due to the fact that the electrochromic material has a relatively large extra vacancy for accommodating lithium ions, the lithium ions can be rapidly embedded and separated, so that the electrochromic material shows the characteristics of relatively short coloring response time and fading response time, and has relatively good electrochemical stability and structural stability.

Description

technical field [0001] The invention relates to the field of functional materials, in particular to an electrochromic material. Background technique [0002] With the increasing demand for energy, people are eager to find a solution to the energy crisis. Harvesting renewable energy and efficient use of energy are two important energy solution strategies, among which smart windows are used on buildings to replace traditional glass windows , can generate substantial energy savings in the built environment, while delivering indoor comfort and economic benefits. [0003] Studies have shown that about 37% of the total energy used to cool a building comes from solar heat, while more than 40% of a building's total energy leakage is lost through windows, especially for the average office worker or child, who stay indoors As high as 80% to 90% of the time, the energy saved by using smart windows will be immeasurable. [0004] However, traditional electrochromic materials have certa...

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): C01G41/00C03C17/22G02F1/1524G02F1/155B82Y30/00
CPCC01G41/00C03C17/22G02F1/1524G02F1/155B82Y30/00C01P2002/72C01P2002/85C01P2004/64C01P2004/62C01P2004/61Y02E60/10
Inventor 刘巍吴聪
Owner SHANGHAI TECH UNIV