Fig. 4: Components on the surface of cathodes after cycling.
From: Engineering a passivating electric double layer for high performance lithium metal batteries
a X-ray photoelectron spectroscopy (XPS) profiles of C 1 s, F 1 s, N 1 s, and O 1 s of CEI formed on NMC811 surface after 5 cycles and b XPS depth profiles of O 1 s of CEI formed on NMC811 surface after 50 cycles at 0.5 C in Li | |NMC811 coin cells with LiFSI/DME and LiFSI–LiNO3/DME electrolyte. HRTEM analyses of NMC811 cathodes obtained from Li/NMC811 cells using LiFSI/DME (right) and LiFSI–LiNO3/DME (right) after (c) 5 and (d) 50 cycles.
