Fig. 4: Quantitative and quanlitative analysis of operando 7Li NMR spectra of SSBs.
a–d The calculated relative ratio of reversible capacity, dead Li and SEI-Li for cells assembled using LGPS (a), LSiPSCl (b), LPSCl (c), and LPS (d). e–g operando 7Li NMR stack spectra of AFB (with LPS) during the first five cycles (e), with magnified stacking spectra of the 4th charging process (f) and the 4th discharging process (g). h, i Schematic of the lithium dendrite penetration process (h) and dead Li formation after subsequent discharging (i).
