Fig. 4: Pseudocapacitive charge storage contributes to the MoS₂ foam’s excellent rate capacity.

a Nyquist plots of MoS₂ foam and MoS₂ bulk electrode at a fully discharged state after ten cycles at 100 mA g⁻¹. b CV measurements feature the 2nd cycle of MoS₂ foam and MoS₂ bulk electrodes under 1 mV s⁻¹ in the voltage window between 0.01–3 V. c Capacitive effects are characterized by analyzing the CV curves at various sweep rates based on i = av^b, where the measured current i follows a power-law relationship with the sweep rate v. d Capacitive and diffusion-controlled charge storage contributions for architected MoS₂ cycled in a Li-ion electrolyte at a scan rate of 1 mV s⁻¹.