Revealing of Li-Ion Transportation in Crystal Lattices by 7Li SAE in Solid-State NMR

Abstract

Spin alignment echo (SAE) is employed here to study the α-LiAsF6/PEO6 system with low poly(ethylene oxide) (PEO) molecular weight. We show that the correlation rate kSAE from SAE experiments, but not the spin-lattice relaxation time and the linewidth, is a better indicator to characterize the higher conductivity.

Keywords

• spin alignment echo (sae)
• polymer electrolyte
• linewidth
• spin-lattice relaxation time