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Active and Passive Electronic Components
Volume 20 (1998), Issue 4, Pages 201-213

Development of Electrochromic Devices Working with Hydrophobic Lithium Electrolyte

1Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB)-CNRS, Université de Bordeaux I, Château Brivazac, Av. du Dr. A. Schweitzer, Pessac 33608, France
2Department of Chemistry, Center for Molecular Catalysis, College of Natural Sciences, Seoul National University, Seoul 151-742, Korea
3Centre de Physique Moléculaire Optique et Herziennne (CPMOH), Université de Bordeaux I, 351 cours de la Libération, Talence 33405, France

Received 27 February 1997; Accepted 13 March 1997

Copyright © 1998 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


This manuscript report on a new lithium electrolyte, allowing the manufacturing of electrochemical systems, such as electrochromic devices, in ambient atmosphere. It is based on lithium bis-trifluoromethane sulfonimide dissolved in the following hydrophobic salt, which was first prepared by M. Grätzel et al.: 1-ethyl. 3-methyllimidazolium bis-trifluoromethane sulfonimide. We have also successfully tested the compatibility of this electrolyte with WO3 and TiO2-CeO2 films acting respectively as efficient electrochromic electrode and counter electrode for smart-window working with Li+ions.