fig6
From: Li2SO4 coating for enhanced electrochemical performance of Co-free, Li-rich layered oxide cathode
Figure 6. (A) TOF-SIMS data for CF-LLC and S-CF-LLC prior to and after 100 cycles and the corresponding (B) TOF-SIMS 3D mapping and (C) TOF-SIMS depth profile; (D) Raman spectra for CF-LLC and S-CF-LLC prior to and after 100 cycles. TOF-SIMS: Time-of-flight secondary ion mass spectrometry; CF-LLC: Co-free, Li-rich layered oxide cathodes; S-CF-LLC: Li2SO4-coated CF-LLC.