Fig. 5From: Amorphous Vanadium Oxide Thin Films as Stable Performing Cathodes of Lithium and Sodium-Ion BatteriesLi-ion battery cyclic performance of a-VOx-6 Pa (a, b) in comparison with bulk c-V2O5 (c, d) in the voltage windows 2.0–4.0 V (a, c) and 1.5–4.0 V (b, d)Back to article page