Electrolyte Additive in Support of 5 V Li Ion Chemistry
Electrolyte Additive in Support of 5 V Li Ion Chemistry
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DOI：
10.1149/1.3532047
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发表时间：
2011-01-01
影响因子：
3.9
通讯作者：
Xu, Kang
中科院分区：
文献类型：
--
作者：
von Cresce, Arthur;Xu, Kang
基于高度氟化磷酸酯结构的电解质添加剂被确定能够稳定5 V级阴极表面上的碳酸盐基电解质。描述了添加剂的合成和结构分析，并且电化学表征的初步但令人鼓舞的结果表明，该添加剂不仅在高压下在过渡金属氧化物阴极上参与形成保护性相间化学（类似于5 V对Li），但也在低电压下对石墨石墨（类似于OV对Li），使得可以配制在令人垂涎的5V区域中支持可逆Li+嵌入化学的电解质。(C)2011年电化学学会。[DOI：10.1149/1.3532047]保留所有权利。
An electrolyte additive based on highly fluorinated phosphate ester structure was identified as being able to stabilize carbonate-based electrolytes on 5 V class cathode surfaces. The synthesis and structural analysis of the additive are described, and preliminary yet encouraging results from electrochemical characterization showed that this additive participates in forming a protective interphasial chemistry not only on transition metal oxide cathode at high voltage (similar to 5 V vs Li) but also on graphitic graphite at low voltage (similar to 0 V vs Li), making it possible to formulate an electrolyte supporting reversible Li+-intercalation chemistry in the coveted 5 V region. (C) 2011 The Electrochemical Society. [DOI:10.1149/1.3532047] All rights reserved.