Electrochromic device

Compositions – Radioactive compositions – Nuclear reactor fuel

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252600, 252582, G03G 502, G02B 100

Patent

active

047266643

ABSTRACT:
An electrochromic device comprising an oxidation coloring substance coloring in an oxidized state and a reduction coloring substance coloring in a reduced state which are formed on the surfaces of a pair of electrodes, respectively, and an electrolyte held between the two substances, wherein the oxidation coloring substance is a double salt containing an iron hexacyanoferrate and the reduction coloring substance is a tungsten-oxalic acid compound. The electrochromic device has a long life suitable for actual applications and a short response time and can operate at low applied voltages.

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patent: 4513302 (1985-04-01), Braun
patent: 4645307 (1987-02-01), Miyamoto et al.
patent: 4652090 (1987-03-01), Uchikawa et al.

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