电解质
碱金属
塑料晶体
锂(药物)
材料科学
离子电导率
无机化学
盐(化学)
阳离子聚合
碳酸丙烯酯
离子
离子键合
快离子导体
溶剂
离子液体
高分子化学
有机化学
化学
物理化学
电极
催化作用
内分泌学
医学
相(物质)
作者
Iolanda Santana Klein,Zuofeng Zhao,Stephen K. Davidowski,Jeffery L. Yarger,C. Austen Angell
标识
DOI:10.1002/aenm.201801324
摘要
Abstract Portable electronic devices are predominantly powered by lithium ion batteries in which the electrolyte is a liquid or gel of lithium salts dissolved in molecular solvents. There have been many attempts to replace the flammable liquid component of the electrolyte by alternative alkali metal transporting media, such as superionic crystals, alkali‐conducting glassy solids, ionic liquids, salt‐in‐molecular plastic crystal solvent, and salt‐in‐ionic plastic crystal solvents. Except for the first two of the above, which have their own problems, all the above have the disadvantage that the alkali cation is the least mobile of the ionic species due to its high charge/radius ratio. Here, some new, silylsulfate‐based are introduced. Members of the class of lithium ion conductor in which the alkali ion is the only cationic species present, and the salt itself is a plastic crystal, a solid in which the anion centers of mass are ordered, but the anion orientations are disordered and dynamic (best example NaCB 9 H 10 , see text). It is shown that depending on the nature of the anion, the conductivity may be within a factor of two of the standard liquid carbonate electrolyte. The soft, spreadable electrolyte, impregnated in Celgard separators, supports truly reversible Li insertion into the LiCoO 2 cathode.
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