| http://www.w3.org/ns/prov#value | - A composition comprising the said salt, the corresponding base (imidazole, triazole, pyridine or 4-(dimethylamino)pyridine) and a poly(ethylene oxide), preferably of high mass or crosslinkable, constitutes an anhydrous protonic conducting polymer. [0083] For an electrochromic device comprising dyes, use is made, as electrolyte, of a composition according to the invention in which the salt is a com
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