Researchers developed a sterically regulated electrolyte that uses a non-flammable cyclic fluorinated diluent to form isolated solvation nanoclusters, improving lithium-ion transport and stabilizing interfaces in lithium metal batteries. The system enabled NCM811 coin cells to retain 80% capacity after more than 800 cycles, while a separate 6 Ah pouch cell exceeded 500 Wh kg?¹ and showed favorable behavior in nail-penetration and severe overcharge tests.
