We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
A Scalable, Robust Polyvinyl‐Butyral‐Based Solid Polymer Electrolyte with Outstanding Ionic Conductivity for Laminated Large‐Area WO<sub>3</sub>–NiO Electrochromic Devices.
- Authors
Wang, Xueqi; Yang, Ye; Jin, Qiongya; Lou, Qicun; Hu, Qizhao; Xie, Ziling; Song, Weijie
- Abstract
Polyvinyl butyral (PVB) is a well‐established polymer interlayer material that has been used in laminated safety glass panels for over 80 years. However, its intrinsically poor ionic conductivity (σ) severely restricts its widespread application as a solid polymer electrolyte (SPE) for laminated WO3–NiO electrochromic devices (ECDs). Here, a new strategy for significantly improving the σ of PVB via a cross‐linking reaction with 3‐glycidoxypropyltrimethoxysilane (KH560) is presented. The cross‐linked PVB‐SPE with 10 wt.% KH560 exhibits the highest room‐temperature σ value among the investigated samples (1.51 × 10−4 S cm−1), which is also higher than that of previously reported PVB‐based SPEs (10−5–10−7 S cm−1). Additionally, the prepared SPE exhibits comprehensive optical, mechanical, and thermal performances, including a high visible transmittance (>91%), relatively high adhesive strength (2.13 MPa), and superior thermal stability (up to 150 °C). Laminated WO3–NiO ECDs with dimensions of 5 × 5 cm2 and 20 × 20 cm2, fabricated by leveraging the aforementioned properties of the electrolyte, operate stably at temperatures ranging from −20 to 80 °C, underscoring the potential of the PVB‐SPE for realizing commercially viable large‐area ECDs.
- Subjects
SOLID electrolytes; POLYELECTROLYTES; ELECTROCHROMIC devices; IONIC conductivity; SUPERIONIC conductors; POLYVINYL butyral
- Publication
Advanced Functional Materials, 2023, Vol 33, Issue 30, p1
- ISSN
1616-301X
- Publication type
Article
- DOI
10.1002/adfm.202214417