Symmetric cell evaluation of the effects of electrolyte additives on Cu2Sb-Al2O3-C nanocomposite anodes

被引：15
作者：
Applestone, Danielle
Manthiram, Arumugam [1 ]
机构：
[1] Univ Texas Austin, Electrochem Energy Lab, Austin, TX 78712 USA
来源：
JOURNAL OF POWER SOURCES | 2012年 / 217卷
关键词：
Lithium-ion batteries; Nanocomposite; Anode; Electrolyte additive; Symmetric cell; LITHIUM-ION BATTERIES; VINYL ETHYLENE CARBONATE; LI-ION; FLUOROETHYLENE CARBONATE; SOLID-ELECTROLYTE; TEMPERATURE PERFORMANCE; THERMAL-PROPERTIES; GRAPHITE ANODE; CATHODE; VC;
D O I：
10.1016/j.jpowsour.2012.05.119
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Coulombic efficiency and capacity retention are some of the main issues with alloy anodes in lithium-ion batteries, and the use of electrolyte additives is a viable approach to overcome these problems. Accordingly, the effects of three electrolyte additives, viz., vinylene carbonate (VC), fluoroethylene carbonate (FEC), and vinylethylene carbonate (VEC), on the performance of a promising alloy anode material Cu2Sb-Al2O3-C have been investigated. With an aim to rapidly assess the effects of the electrolyte additives, symmetric cells fabricated with Cu2Sb-Al2O3-C were used. Symmetric cell testing showed results similar to those of conventional half-cell testing in as little as one-fifth of the time, illustrating that symmetric cell testing is a valuable tool for optimization the performance of battery materials. Among the various additives and concentrations investigated, 2% VEC was found to offer the best cell performance with the Cu2Sb-Al2O3-C nanocomposite anode. (C) 2012 Elsevier B.V. All rights reserved.
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页码：1 / 5
页数：5
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