“…Consequently, researchers tend to combine EDLC-based materials, such as carbon-based materials, with improving the supercapacitive performance of TMOs. In terms of electrochromic performance, TMOs show remarkable potential as electrochromic materials due to the ability to reverse the coloration upon a small electric field being applied [96]. TMOs' reversible and stable coloring is due to their metastability in many oxidation states.…”