Dipolar interaction-mediated molecular anchoring electrolyte enables wide-temperature sodium-ion batteries with enhanced safety and durability (opens in new tab)

Given intractable challenges faced by practical sodium-ion batteries in safety, lifespan and broad temperature adaptability with synergistic interfacial compatibility, persistent efforts in electrolyte engineering are imperative to expedite their commercialization. Here we design a molecular anchoring electrolyte with flame retardancy, oxidative/reductive reliability and electrochemical durability against various electrodes. Through multiple dipolar interactions (δ+H-δ-F and δ+H-δ-O), a dynam...