Fig. 5: The electrochemical properties of HED-Nb2O5.
From: High-entropy-doping effect in a rapid-charging Nb2O5 lithium-ion battery negative electrode
a Lithium diffusion coefficients of TT-, T-, M-, HED-, and H-Nb2O5 as a function of open-circuit voltage, calculated from galvanostatic intermittent titration technique (GITT) curves. b Cyclic voltammogram (CV) of the niobium oxides at a sweep rate of 0.1 mV s−1. c–e The operando XRD patterns of (c) M-, (d) HED-, and (e) H-Nb2O5 at a specific current of 25 mA g−1 and a temperature of 27 °C.
