Gel electrolyte candidates for electrochromic devices (ECDs)

Susan E. Legenski; Chunye Xu; Lu Liu; Marie O. Le Guilly; Minoru Taya

doi:10.1117/12.540128

27 July 2004 Gel electrolyte candidates for electrochromic devices (ECDs)

Susan E. Legenski, Chunye Xu, Lu Liu, Marie O. Le Guilly, Minoru Taya

Proceedings Volume 5385, Smart Structures and Materials 2004: Electroactive Polymer Actuators and Devices (EAPAD); (2004) https://doi.org/10.1117/12.540128
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

Abstract

A comparison of key parameters of seven different gel electrolytes for use in electrochromic devices (ECD) is reported. The ionic conductivity, transmittance, and stability of the gel electrolytes are important considerations for smart window applications. The gel electrolytes were prepared by combining polymethylmethacrylate (PMMA) with a salt and a solvent combination. Two different salts, lithium perchlorate (LiClO4) and trifluorosulfonimide (LiN(CF3SO2)2), and three solvent combinations, acetonitrile and propylene carbonate (ACN and PC), ethylene carbonate and propylene carbonate (EC and PC), and Gamma-butyrolactone and propylene carbonate (GBL and PC) were investigated. Results show that gel electrolytes composed of a LiClO4 and GBL+PC combination and a LiClO4 and EC+PC combination are the best candidates for a smart window device based on its high conductivity over time and various temperatures, as well as its electrochemical stability and high transmittance.

Citation Download Citation

Susan E. Legenski, Chunye Xu, Lu Liu, Marie O. Le Guilly, and Minoru Taya "Gel electrolyte candidates for electrochromic devices (ECDs)", Proc. SPIE 5385, Smart Structures and Materials 2004: Electroactive Polymer Actuators and Devices (EAPAD), (27 July 2004); https://doi.org/10.1117/12.540128

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