高抗氧化锂盐赋能锂金属电池的高压醚类电解液
Highly Antioxidative Lithium Salt Enables High-Voltage Ether Electrolyte for Lithium Metal Battery
AI总结：
为解决醚类电解液在高压下不稳定的问题，提出LiPFBS/DME电解液，通过构建坚固的无机主导CEI层并维持SEI兼容性，显著提升了4.6 V高压锂金属电池的性能。
摘要：
醚类电解液对锂金属负极表现出优异的兼容性，但其在高压下的不稳定性限制了其在高压锂金属电池中的应用。为解决此问题，我们引入全氟丁烷磺酸盐（LiPFBS）/二甲氧基乙烷（DME）电解液，以在4.6 V Li-Li LCO电池中稳定DME。本研究重点对比LiTFSI/DME电解液，探讨固体电解质界面（SEI）和正极电解质界面（CEI）层的形成。我们证明LiPFBS有助于在SEI形成中维持DME的兼容性。此外，由PFBS$^{-}$衍生的持久CEI层通过形成坚固的无机主导CEI层，提升了电池在高压下的性能。该PFBS$^{-}$衍生的CEI显著增强了全电池在高压条件下的整体性能。
英文摘要：
Ether-based electrolytes exhibit excellent compatibility with Li metal anodes, but their instability at high voltages limits their use in high-voltage Li metal batteries. To address this issue, we introduce an alternative perfluorobutane sulfonate (LiPFBS) / dimethoxyethane (DME) electrolyte to stabilize DME in a 4.6 V Li-Li LCO battery. Our study focuses on the formation of solid-electrolyte interphase (SEI) and cathode-electrolyte interphase (CEI) layers compared to the LiTFSI/DME electrolyte. We demonstrate that LiPFBS helps maintain DME's compatibility in SEI formation. Additionally, a durable CEI layer derived from PFBS$^{-}$ enhances the performance of the cell at high voltages by forming a robust, inorganic-dominant CEI layer. A PFBS$^{-}$-derived CEI significantly enhances the overall performance of the full cell under high voltage conditions.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
