Electrochemical characteristics of LiMxFe1-xPO4 cathode with LiBOB based electrolytes

被引:29
作者
Wang, Sai [1 ]
Qiu, Weihua [1 ]
Guan, Yunlong [1 ]
Yu, Bitao [1 ]
Zhao, Hailei [1 ]
Liu, Wei [1 ]
机构
[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Dept Inorgan Nonmet Mat, Beijing 100083, Peoples R China
基金
中国国家自然科学基金;
关键词
lithium-ion battery; electrolyte; LiBOB; bis(oxalato)borate; lithium iron phosphate;
D O I
10.1016/j.electacta.2007.01.052
中图分类号
O646 [电化学、电解、磁化学];
学科分类号
081704 ;
摘要
The conductivity of LiBOB based electrolyte, which we formed in our lab, has been compared with commercialized LiPF6 based electrolyte firstly. The charge and discharge capacity of the LiFePO4/Li half-cell with two kind of electrolyte has compared both at room temperature and elevated temperature. LiBOB cell presented better charge/discharge stability at elevated temperature than the counterpart. ICP method was adopted to analyze the reaction of electrolytes with cathode material at high temperature. Cyclic voltammogram was conducted to analyze the charge/discharge process of the cell in both LiBOB based electrolyte and LiPF6 based electrolyte at different temperature. (c) 2007 Published by Elsevier Ltd.
引用
收藏
页码:4907 / 4910
页数:4
相关论文
共 10 条
[1]   Improved lithium manganese oxide spinel/graphite Li-ion cells for high-power applications [J].
Amine, K ;
Liu, J ;
Kang, S ;
Belharouak, I ;
Hyung, Y ;
Vissers, D ;
Henriksen, G .
JOURNAL OF POWER SOURCES, 2004, 129 (01) :14-19
[2]   ARC studies of the reaction between Li0FePO4 and LiPF6 or LiBOB EC/DEC electrolytes [J].
Jiang, J ;
Dahn, JR .
ELECTROCHEMISTRY COMMUNICATIONS, 2004, 6 (07) :724-728
[3]   ARC studies of the thermal stability of three different cathode materials:: LiCoO2; Li[Ni0.1Co0.8Mn0.1]O2; and LiFePO4, in LiPF6 and LiBoB EC/DEC electrolytes [J].
Jiang, J ;
Dahn, JR .
ELECTROCHEMISTRY COMMUNICATIONS, 2004, 6 (01) :39-43
[4]  
Lishka U., 1999, [No title captured], Patent No. [DE19829030C1, 19829030]
[5]   Chemical reactivity of PF5 and LiPF6 in ethylene carbonate/dimethyl carbonate solutions [J].
Sloop, SE ;
Pugh, JK ;
Wang, S ;
Kerr, JB ;
Kinoshita, K .
ELECTROCHEMICAL AND SOLID STATE LETTERS, 2001, 4 (04) :A42-A44
[6]   The development of low cost LiFePO4-based high power lithium-ion batteries [J].
Striebel, K ;
Shim, J ;
Sierra, A ;
Yang, H ;
Song, XY ;
Kostecki, R ;
McCarthy, K .
JOURNAL OF POWER SOURCES, 2005, 146 (1-2) :33-38
[7]   Characterization of LiFePO4 as the cathode material for rechargeable lithium batteries [J].
Takahashi, M ;
Tobishima, S ;
Takei, K ;
Sakurai, Y .
JOURNAL OF POWER SOURCES, 2001, 97-8 :508-511
[8]   LiBOB as salt for lithium-ion batteries - A possible solution for high temperature operation [J].
Xu, K ;
Zhang, SS ;
Jow, TR ;
Xu, W ;
Angell, CA .
ELECTROCHEMICAL AND SOLID STATE LETTERS, 2002, 5 (01) :A26-A29
[9]   LiBOB and its derivatives - Weakly coordinating anions, and the exceptional conductivity of their nonaqueous solutions [J].
Xu, W ;
Angell, CA .
ELECTROCHEMICAL AND SOLID STATE LETTERS, 2001, 4 (01) :E1-E4
[10]   The electrochemical characterization of lithium bis( oxalato) borate synthesized by a novel method [J].
Yu, BT ;
Qiu, WH ;
Li, FS ;
Xu, GX .
ELECTROCHEMICAL AND SOLID STATE LETTERS, 2006, 9 (01) :A1-A4