Abstract Scope |
Understanding ion transport is critical to developing fast ion conductors for solid-state batteries. We employed advanced solid-state NMR spectroscopy, relaxometry, diffusometry, and tracer-exchange NMR to determine local structures of active ions, ion dynamics, tracer diffusivity, and transport pathways. With insights into ion transport mechanisms gained with a combined experimental and computational approach, we have synthesized many oxide-, sulfide, and halide-based ion conductors with record-high ionic conductivities. In addition, we have incorporated fast ion conductors into composite cathodes for affiliating ion transport and investigated ion transport in these complex composites. The new knowledge will help advise the fabrication of high-performance solid-state batteries. |