Enhanced lithium dendrite suppressing capability enabled by a solid-like electrolyte with different-sized nanoparticles

A solid-like electrolyte (SLE-H) consisting of two different-sized ion conductors is prepared. Due to its higher packing density, SLE-H exhibits improved ionic conductivity. During Li plating/stripping, larger nanoparticles serve as physical barricades for dendrite growth, while smaller nanoparticles facilitate better contact with Li. Consequently, SLE-H demonstrates superior dendrite suppressing capability.