Electrochromic light valve and method of manufacturing it as well as its use

Electrochromic light valve, comprising

• (a) a pair of electrodes, at least one of said electrodes being transparent;
• (b) an electrolyte layer arranged between said electrodes;
• (c) an active electrochromic layer whose color can change, said active electrochromic layer being interposed between one of said electrodes and said electrolyte layer;
• (d) an optically passive and transparent charge storage layer whose transparence remains essentially unchanged, said charge storage layer being interposed between the other of said electrodes and said electrolyte layer;
• (e) said active electrochromic layer being arranged and adapted for reversibly changing its coloration by acceptance and donation of electrons from and to said one electrode;
• (f) said active electrochromic layer for reversibly changing its coloration further being arranged and adapted for acceptance and donation of ions from and to said electrolyte;
• (g) said charge storage layer being arranged and adapted for donating and accepting ions from and to said electrolyte;
• (h) said charge storage layer further being arranged and adapted for donating and accepting electrons to and from said other electrode;
• and
• (i) said charge storage layer further being supersaturated with at least one of an element and a compound providing and accepting ions.