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Electrochemical performance of electrolytes based upon lithiumbis(oxalate)borate and sulfolane/alkyl sulfite mixtures for hightemperature lithium-ion batteries
Mao, Liping; Li, Bucheng; Cui, Xiaoling; Zhao, Yangyu; Xu, Xiaoli; Shi, Xinming; Li, Shiyou; Li, Faqiang
2012
Source PublicationELECTROCHIMICA ACTA
ISSN0013-4686
Volume79Pages:197-201
AbstractLithium 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.
KeywordLithium Ion Battery Sulfolane Sulfite Lithium Bis(Oxalate)Borate
Indexed BySCI
Document Type期刊论文
Identifierhttp://ir.isl.ac.cn/handle/363002/2023
Collection青海盐湖研究所知识仓储
Recommended Citation
GB/T 7714
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.
APA Mao, Liping.,Li, Bucheng.,Cui, Xiaoling.,Zhao, Yangyu.,Xu, Xiaoli.,...&Li, Faqiang.(2012).Electrochemical performance of electrolytes based upon lithiumbis(oxalate)borate and sulfolane/alkyl sulfite mixtures for hightemperature lithium-ion batteries.ELECTROCHIMICA ACTA,79,197-201.
MLA Mao, Liping,et al."Electrochemical performance of electrolytes based upon lithiumbis(oxalate)borate and sulfolane/alkyl sulfite mixtures for hightemperature lithium-ion batteries".ELECTROCHIMICA ACTA 79(2012):197-201.
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