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题名: Electrochemical performance of electrolytes based upon lithiumbis(oxalate)borate and sulfolane/alkyl sulfite mixtures for hightemperature lithium-ion batteries
作者: Mao, Liping ;  Li, Bucheng ;  Cui, Xiaoling ;  Zhao, Yangyu ;  Xu, Xiaoli ;  Shi, Xinming ;  Li, Shiyou ;  李法强
刊名: ELECTROCHIMICA ACTA
出版日期: 2012
卷号: 79, 页码:197-201
关键词: Lithium ion battery ;  Sulfolane ;  Sulfite ;  Lithium bis(oxalate)borate
英文摘要: Lithium bis(oxalate)borate (LiBOB) has many unique properties, such as thermal stability and the formation of a stable passivation layer on the surface of carbonaceous anode. In this work, the electrochemical behaviors of sulfolane (SL) with LiBOB were studied by employment of dimethyl sulfite (DMS) and diethyl sulfite (DES) as mixed solvents, respectively. When used in Li/MCMB (mesophase carbon microbeads) cells at 60 degrees C, only LiBOB-SL/DMS electrolyte exhibits not only excellent film-forming characteristics, but also good thermal stability of the interface film on the surface of MCMB. Besides, when used in LiFePO4/Li cells at 60 degrees C, only LiBOB-SL/DMS electrolyte simultaneously exerts several advantages, such as good thermal stability of the interface film on the surface of LiFePO4, stable cycling performance, high mean voltage, and excellent discharge rate performance. It suggests that LiBOB-SL/DMS electrolyte is an excellent candidate electrolyte for high-temperature lithium ion batteries. (c) 2012 Elsevier Ltd. All rights reserved. Lithium bis(oxalate)borate (LiBOB) has many unique properties, such as thermal stability and the formation of a stable passivation layer on the surface of carbonaceous anode. In this work, the electrochemical behaviors of sulfolane (SL) with LiBOB were studied by employment of dimethyl sulfite (DMS) and diethyl sulfite (DES) as mixed solvents, respectively. When used in Li/MCMB (mesophase carbon microbeads) cells at 60 degrees C, only LiBOB-SL/DMS electrolyte exhibits not only excellent film-forming characteristics, but also good thermal stability of the interface film on the surface of MCMB. Besides, when used in LiFePO4/Li cells at 60 degrees C, only LiBOB-SL/DMS electrolyte simultaneously exerts several advantages, such as good thermal stability of the interface film on the surface of LiFePO4, stable cycling performance, high mean voltage, and excellent discharge rate performance. It suggests that LiBOB-SL/DMS electrolyte is an excellent candidate electrolyte for high-temperature lithium ion batteries. (c) 2012 Elsevier Ltd. All rights reserved.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.isl.ac.cn/handle/363002/2023
Appears in Collections:青海盐湖研究所知识仓储(2014年之前)_期刊论文

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Recommended Citation:
Mao, Liping,Li, Bucheng,Cui, Xiaoling,et al. Electrochemical performance of electrolytes based upon lithiumbis(oxalate)borate and sulfolane/alkyl sulfite mixtures for hightemperature lithium-ion batteries[J]. ELECTROCHIMICA ACTA,2012,79:197-201.
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