Electrochromic window, based on a polymeric polyepoxy electrolyt

Details Electrochromic window, based on a polymeric polyepoxy electrolyt Electrochromic window, based on a polymeric polyepoxy electrolyt

1993-11-08

1995-02-28

Nakarani, D. S.

Optical: systems and elements

Optical modulator

Light wave temporal modulation

252 622, 359275, 428336, 428414, 428432, 428433, 428434, 428701, 428702, 429192, 429193, G02F 153

Patent

active

053942647

ABSTRACT:
An electrochromic window comprises a tungsten oxide electrode on a transparent conductive glass sheet and a nickel oxide counterelectrode. The counterelectrode is activated by electrochemical intercalation of lithium on a transparent conductive glass sheet. The window also comprises a solid polymeric electrolyte interposed between the electrode and the counterelectrode. The electrolyte is formed by a solid solution of an ionic lithium compound in a solid crosslinked polyepoxide. The polyepoxide is obtained by copolymerization of a monoepoxide with a diepoxide.

REFERENCES:
patent: 4832468 (1989-05-01), Ito et al.
patent: 4927246 (1990-05-01), Ito et al.
Journal of the Electrochemical Society, vol. 136, No. 11, Nov. 1989, Manchester, N.H., US, pp. 3394-3395, S. Passerini et al., "An Electrochromic Window Based on Li.sub.x WO.sub.3 /(PEO).sub.8 LiClO.sub.4 /NiO".

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