Tailoring fluorine-rich solid electrolyte interphase to boost high efficiency and long cycling stability of lithium metal batteries

Difluoroethylene Carbonate as an Electrolyte Additive for Engineering the Electrolyte–Electrode Interphase of Lithium Metal Batteries

“…For instance, Qi et al 17 As the analogue of FEC, difluoroethylene carbonate (DFEC) is a promising electrolyte additive for stabilizing the electrolyte−electrode interphase in LMBs. 5,18,19 In this work, therefore, we proposed DFEC as a multifunctional electrolyte additive for a stable high-voltage LMB system. At first, DFEC exhibits a low LUMO level and this can decompose into a LiFrich SEI layer, which can govern the Li + -ion flux and suppress the growth of lithium dendrite.…”

Layered K2Mg2TeO6 Solid Electrolyte Enables Long-Life Solid-State Potassium Batteries

“…An energy storage device with low cost, high safety, and high energy density is the ultimate target for research in the field involving electrochemical energy storage . In the last decades, solid-state lithium and sodium batteries have attracted increasing attention, due to the inherently safe characteristic, and great achievements have been reached regarding the fundamental knowledge and manufacturing technology. − Recently, study on solid-state potassium batteries has been revitalized, owing to their potential applications in large-scale energy storage and their low cost and worldwide distributed resources of raw materials. , Wu et al reported solid-state potassium sulfur batteries based on solid electrolytes of K 3 SbS 4 and W-doped derivatives; they also studied another potassium-ion solid electrolyte of antiperovskite K 3 OI . Solid-state batteries based on in situ polymerized poly­[ethylene oxide- co -2-(2-methoxyethoxy)­ethyl glycidyl ether- co -allyl glycidyl ether] (P­(EO/MEEGE/AGE)) were also constructed by Komaba et al, and encouragingly, our group proposed solid-state potassium batteries delivering good performance in a wide temperature range from −20 to 120 °C with a creative KC composite anode stabilizing the anode/β/β″-Al 2 O 3 solid electrolyte interface .…”