Citraconic anhydride as an electrolyte additive to improve the high temperature performance of LiNi0.6Co0.2Mn0.2O2/graphite pouch batteries

时间:2019-11-05作者:浏览量:518


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