Table 1: Effect of 10000 cycles of electrochemical switching on , , and of a typical ECD with the configuration WO3/PE/V2O5. Each cycle is made of 20 s at +2 V (bleaching) and 20 s at −2 V (coloring). Potentials are versus V2O5 anode acting as counter and reference electrode.

Cycle nr. 5Cycle nr. 1000

1 s1.6 s
2 s2.9 s
16.59.3