Mg-doped layered vanadates for high-energy zinc anode-based electrochromic devices

= 25.2 s), enhanced coloration efficiency, and excellent electrochemical reversibility. Finally, the fabricated ZECDs employing MVO films demonstrate exceptional electrochemical reversibility, promising optical switching performance and excellent cycling stability (500 cycles). These results validate the effectiveness of the Mg-doping strategy for the modification of layered vanadates for optimized ZECDs coupling EC and energy storage functionalities.