fig5
From: Li2SO4 coating for enhanced electrochemical performance of Co-free, Li-rich layered oxide cathode
Figure 5. XPS analysis of (A) CF-LLC F 1s spectra before and after 100 cycles; (B) S-CF-LLC F 1s spectra before and after 100 cycles; (C) CF-LLC O 1s spectra before and after 100 cycles; (D) S-CF-LLC O 1s spectra before and after 100 cycles. XPS: X-ray photoelectron spectroscopy; CF-LLC: Co-free, Li-rich layered oxide cathodes; S-CF-LLC: Li2SO4-coated CF-LLC.
