Scalable synthesis of hydroxyl-functionalized boron nanosheets for high ion-conductive solid-state electrolyte applications.

A hydroxyl-functionalized boron nanosheet is developed as the filler material for the solid-state electrolyte (SSE) of lithium batteries. The nanosheet exhibits good oxidation resistance and thermal stability. Its composite SSE shows high ionic conductivity, and the resulting batteries present much enhanced capacities, rate capability and cycling performance, proving the electrochemical advances of the boron nanosheet.