Enhanced cycleability and dendrite-free lithium deposition by addition of sodium ion in electrolyte for lithium metal batteries

The addition of Na+ to the electrolyte significantly improves the morphology of the lithium deposits and the cycleability of lithium deposition-stripping. The functions and mechanism of Na+ addition to the electrolyte are evaluated. The occurrence of Li-Na co-deposition and co-stripping processes during cycles is demonstrated.224