溶剂化
电解质
相间
电极
砜
材料科学
离子
化学
石墨
相容性(地球化学)
溶剂
化学工程
无机化学
能量密度
锂(药物)
有机化学
物理化学
复合材料
工程物理
医学
生物
工程类
遗传学
内分泌学
作者
Hao Jia,Yaobin Xu,Lianfeng Zou,Peiyuan Gao,Xianhui Zhang,Brandan Taing,Bethany E. Matthews,Mark H. Engelhard,Sarah D. Burton,Kee Sung Han,Lirong Zhong,Chongmin Wang,Wu Xu
标识
DOI:10.1016/j.jpowsour.2022.231171
摘要
In this work, localized high concentration electrolytes (LHCEs) based on tetramethylene sulfone (TMS) were designed. Similar to LHCEs based on other solvents, TMS-based LHCEs can achieve excellent compatibility with high energy density lithium-ion batteries (LIBs) when combined with a proper additive. The unique solvation structure of LHCEs facilitates the synergetic decomposition of anion, solvent and additive in the solid electrolyte interphase (SEI) formation. Proper combinations of the three constituents of the solvation sheaths in LHCEs can promote the formation of highly effective SEI on graphite negative electrode. The absence of LiPF6 in LHCEs also suppresses the degradation of positive electrode materials in LIBs. The superior interphasial properties of LHCEs are the key to realizing the long lifespan of high energy density LIBs.
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