Citraconic anhydride as an electrolyte additive to improve the high temperature performance of LiNi0.6Co0.2Mn0.2O2/graphite pouch batteries
作者:Wang, CY (Wang, Chengyun)[ 1,2 ] ; Ouyang, LZ (Ouyang, Liuzhang)[ 1,2,3 ] ; Fan, WZ (Fan, Weizhen)[ 4,5 ] ; Liu, JW (Liu, Jiangwen)[ 1,2 ] ; Yang, LC (Yang, Lichun)[ 1,2 ] ; Yu, L (Yu, Le)[ 4,5 ] ; Zhu, M (Zhu, Min)[ 1,2 ]
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JOURNAL OF ALLOYS AND COMPOUNDS
卷: 805 页: 757-766
DOI: 10.1016/j.jallcom.2019.07.140
出版年: OCT 15 2019
文献类型:Article
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摘要
An unstable solid electrolyte interface (SEI) on graphite electrode surface is easily destroyed and continually consumes the electrolyte for reconstruction, resulting in large capacity loss under high temperature operation. Here, citraconic anhydride (CAn) as a novel electrolyte additive is evaluated to overcome the aforementioned high temperature problems of the LiNi0.6Co0.2Mn0.2O2/graphite pouch cell. The cell containing 2 wt% CAn displays a superior capacity recovery capability and negligible capacity loss after storage at 60 degrees C for 15 days. Electrochemical measurements and spectroscopic techniques confirm that a high stability SEI film is formed on the graphite surface by the CAn reduction. Moreover, the CAn-derived SEI film can significantly reduce the irreversible consumption of LiPF6 and then effectively improve the high temperature performances of pouch LIBs. Differently from other additives, a certain amount of CAn component can reduce the impedance of pouch cells during high temperature storage process. These findings offer a promising high temperature additive for high-energy density commercial pouch LIBs. (C) 2019 Elsevier B.V. All rights reserved.
关键词
作者关键词:Citraconic anhydride; High temperature; Electrolyte additive; Graphite interfacial layer; LiNi0.6Co0.2Mn0.2O2/graphite pouch cell
KeyWords Plus:LI-ION; SUCCINIC ANHYDRIDE; CYCLING PERFORMANCE; VINYLENE CARBONATE; ETHYLENE CARBONATE; CATHODE MATERIAL; LITHIUM; INTERFACE; COMPOSITE; LI2CO3
作者信息
通讯作者地址: Ouyang, LZ (通讯作者)
显示更多South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China.
通讯作者地址: Yu, L (通讯作者)
Guangzhou Key Lab New Funct Mat Power Lithium Ion, Guangzhou 510760, Guangdong, Peoples R China.
通讯作者地址: Yu, L (通讯作者)
Guangzhou Tinci Mat Technol Co Ltd, Guangzhou 510760, Guangdong, Peoples R China.
地址:
显示更多[ 1 ] South China Univ Technol, Guangdong Prov Key Lab Adv Energy Storage Mat, Sch Mat Sci & Engn, Guangzhou 510641, Guangdong, Peoples R China
显示更多[ 2 ] South China Univ Technol, SUNWODA SCUT Joint Lab Adv Energy Storage Technol, Guangzhou 510641, Guangdong, Peoples R China
[ 3 ] Key Lab Fuel Cell Technol Guangdong Prov, Guangzhou 510641, Guangdong, Peoples R China
[ 4 ] Guangzhou Key Lab New Funct Mat Power Lithium Ion, Guangzhou 510760, Guangdong, Peoples R China
[ 5 ] Guangzhou Tinci Mat Technol Co Ltd, Guangzhou 510760, Guangdong, Peoples R China
电子邮件地址:meouyang@scut.edu.cn; yule@tinci.com
基金资助致谢
基金资助机构显示详情授权号
National Natural Science Foundation of China
NSFC51621001
51771075
51571091
Science and Technology Projects of Guangzhou
201604016131
Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme
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出版商
ELSEVIER SCIENCE SA, PO BOX 564, 1001 LAUSANNE, SWITZERLAND
期刊信息
Impact Factor (影响因子): Journal Citation Reports
类别 / 分类
研究方向:Chemistry; Materials Science; Metallurgy & Metallurgical Engineering
Web of Science 类别:Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering