Tris(pentafluorophenyl) borane-containing electrolytes for electrochemical reversibility of lithium peroxide-based electrodes in lithium-oxygen batteries

被引:20
作者
Choi, Nam-Soon [1 ]
Jeong, Goojin [2 ]
Koo, Bonjae [1 ]
Lee, Yong-Won [1 ]
Lee, Kyu Tae [1 ]
机构
[1] Ulsan Natl Inst Sci & Technol, Interdisciplinary Sch Green Energy, Ulsan 689798, South Korea
[2] Korea Elect Technol Inst, Adv Batteries Res Ctr, Songnam 463816, Gyeonggi, South Korea
基金
新加坡国家研究基金会;
关键词
Lithium-oxygen battery; Lithium peroxide; Electrolyte; Tris(pentafluorophenyl) borane; Solid electrolyte interphase; ANION RECEPTOR; AIR BATTERIES; LI-AIR; PERFORMANCE;
D O I
10.1016/j.jpowsour.2012.10.029
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
Tris(pentafluorophenyl) borane (TPFPB) is evaluated as an additive for improving electrochemical performance of lithium peroxide (Li2O2)-based electrodes. It is found that TPFPB significantly reduced the charge potential of Li2O2-based electrodes during the first charge process and improved reversible capacity during cycling without adding air (or O-2) to the cell. To confirm the effect of TPFPB on electrolyte decomposition, the surface chemistry of Li2O2-based electrodes cycled in electrolytes with and without TPFPB was investigated. (C) 2012 Elsevier B.V. All rights reserved.
引用
收藏
页码:95 / 100
页数:6
相关论文
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[21]   Raman Spectroscopic and X-ray Diffraction Studies of Sulfur Composite Electrodes during Discharge and Charge [J].
Yeon, Jin-Tak ;
Jang, Jun-Young ;
Han, Jung-Gu ;
Cho, Jaephil ;
Lee, Kyu Tae ;
Choi, Nam-Soon .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2012, 159 (08) :A1308-A1314