(A) 29Si MAS NMR spectra of Li-SiOC-700. The experimental spectrum is shown as the bold black line (Top), the simulation is shown as the bold dashed line (Middle), and the individual peak components are shown with thin solid lines (Bottom). (B) 13C MAS NMR spectrum of Li-SiOC-700. (C) 6Li MAS NMR spectrum of Li-SiOC-700. The 6Li NMR chemical shift ranges characteristic of 4-, 5-, and 6-coordinated Li in oxides, as reported in the literature (20), are shown.