Fig. 4: Electrochemical performances of the Li-S batteries.
From: Single-step laser-printed integrated sulfur cathode toward high-performance lithium–sulfur batteries
a CV curves at 0.1 mV s−1 for the L-MnOx-Hal-S@CF and L-Hal-S@CF cathodes. CV curves for the (b) L-MnOx-Hal-S@CF cathode and (c) L-Hal-S@CF cathode at different scan rates. d Fitted curves of peak current densities vs square root scan rates. e Charge-discharge curves at 0.2 C. f Ex situ Mn 2p spectra of L-MnOx-Hal-S samples in different charge/discharge states. The five Mn 2p spectra in the right part (from the bottom to the top) correspond to the pristine state, first discharge state (D1), second discharge state (D2), first charge state (C1), and second charge state (C2), which are signed in the charge-discharge curve (the left part).
