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Proceedings Paper

Polymeric ion conductors
Author(s): J. Nagai
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Paper Abstract

The advantages of applying polymeric ion conductors to electrochromic(EC) devices' were mentioned in relatively early studies of the EC research. The electrochromic devices based upon amorphous W03 in the past used the liquid protonic electrolytes such as sulfonic acid. However, the W03 films were found to be dissolved in contact with aqueous media, forming poly- tungstate. Such degradation of the W03 film in electrochromic devices was partly overcome by replacing the sulfonic acid with proton conducting polymers. In the meanwhile, reduction of underlying transparent conductive oxides were found as a result of proton attack. Thus appeared the non- aqueous electrolytes,e.g. solutions of an alkali salts in aprotic solvents.

Paper Details

Date Published: 28 March 1990
PDF: 8 pages
Proc. SPIE 10304, Large-Area Chromogenics: Materials and Devices for Transmittance Control, 103040O (28 March 1990); doi: 10.1117/12.2283627
Show Author Affiliations
J. Nagai, Asahi Glass Co., Ltd. (Japan)


Published in SPIE Proceedings Vol. 10304:
Large-Area Chromogenics: Materials and Devices for Transmittance Control
Carl M. Lampert; Claes-Göran Granqvist, Editor(s)

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