Fig. 2: Optimizing the composition of F6L.

a The solubility of F6−0 and F7−1 in the RCE. b The illustration of the dissolution–deposition dynamic equilibrium of LNO in the RCE23 without and with F6−0. c The schematic of regulating the components of F6L. d Contour plots of CEs recorded from the half-cells using the RCE with F6L having various ratios of F6−0 and LNO at 0.4 mA cm−2 with 0.8 mAh cm−2. e Voltage profiles of half-cells using Blank, F6−0, and optimized F6L. f The rate performance of Li symmetric cells using Blank, F6−0, and optimized F6L. Source data are provided as a Source Data file.