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Updated: May 23, 2026
10:33
An Electrochemical Cholesteric Liquid Crystalline Device for Quick and Low-Voltage Color Modulation
Published on: February 27, 2019
Strength-enhanced solid-state electrolyte polyvinyl butyral film and its electrochromic application
Ruize Yuan1, Di Rong1, Yingli Wu1
1School of Chemical Engineering, Changchun University of Technology, Changchun 130000, China. wswjldx2004@163.com.
Chemical Communications (Cambridge, England)
|May 22, 2026
Summary
A novel polyvinyl butyral (PVB) solid polymer electrolyte film was developed for electrochromic safety glass. This advanced material enables rapid, reversible color changes, offering applications in automotive and construction industries.
Area of Science:
- Materials Science
- Electrochemistry
- Polymer Science
Background:
- Solid polymer electrolytes are crucial for advanced electrochemical devices.
- Electrochromic materials offer tunable light transmission properties.
- Developing stable and efficient solid-state electrochromic systems remains a challenge.
Purpose of the Study:
- To fabricate a polyvinyl butyral (PVB) solid polymer electrolyte film with high ionic conductivity and mechanical strength.
- To construct an electrochromic laminated safety glass using the developed PVB film.
- To evaluate the performance of the electrochromic safety glass in terms of switching speed, color stability, and potential applications.
Main Methods:
- Electrostatic spinning and immersion techniques were employed to fabricate the PVB solid polymer electrolyte film.
- Hot-pressing was utilized to construct the electrochromic laminated safety glass.
- Electrochemical measurements were performed to determine ionic conductivity and tensile strength.
- Optical and electrical switching characteristics of the electrochromic glass were analyzed.
Main Results:
- A PVB solid polymer electrolyte film with ionic conductivity of 4.65 × 10-5 S cm-1 and tensile strength of 25 MPa was successfully fabricated.
- The electrochromic laminated safety glass demonstrated rapid switching from transparent to dark blue opaque within 4 seconds upon voltage application.
- The achieved color state was stable and maintained even after the removal of the applied voltage.
Conclusions:
- The developed PVB solid polymer electrolyte film is suitable for creating high-performance electrochromic laminated safety glass.
- The fabricated electrochromic glass exhibits excellent switching characteristics and color stability.
- This technology holds significant potential for applications in the automotive and construction industries, enhancing safety, stability, and energy efficiency.
