Electrolyte Additive in Support of 5 V Li Ion Chemistry

被引：208

作者：

von Cresce, Arthur ^{[1
]}

Xu, Kang ^{[1
]}

机构：

[1] USA, Electrochem Branch, Power & Energy Div, Sensor & Electron Devices Directorate,Res Lab, Adelphi, MD 20783 USA

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2011年 / 158卷 / 03期

关键词：

ELECTROCHEMICAL PROPERTIES; SPINEL CATHODES; PHOSPHORIC-ACID; BATTERIES; SURFACE; CARBONATE; SOLVENT; CELLS;

D O I：

10.1149/1.3532047

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

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.

引用

页码：A337 / A342

页数：6

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