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Triethoxysilane with oligo(ethylene oxide) substituent as film forming additive for graphite anode
Qin, Xue-ying1,2; Wang, Jing-lun1; Tang, Dao-ping1; Mai, Yong-jin1; Zhang, Ling-zhi1
2013-07-01
Source PublicationJOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A
Volume14Issue:7Pages:514-519
Abstract{3-[2-(2-methoxyethoxy) ethoxy]-propyl} triethoxysilane (TESM2) was synthesized and used as an electrolyte additive to improve the performances of lithium-ion batteries (LIBs). The electrochemical properties of the electrolyte (1 mol/L lithium hexafluorophosphate (LiPF6)/ethylene carbonate (EC):diethylene carbonate (DEC):dimethyl carbonate (DMC), 1: 1: 1) with different contents of TESM2 were characterized by ionic conductivity measurement, galvanostatic charge/discharge test of graphite/Li half cells, and electrochemical impedance spectroscopy. Both the cycling performances and C-rate capabilities of graphite/Li half cells were significantly improved with an optimized content of 15% TESM2 in the electrolyte. The graphite/Li half cell delivered a very high specific capacity of 370 mAh/g at 0.2C rate without any capacity loss for 60 cycles, and retained a capacity of 292 mAh/g at 2C rate. The solid electrolyte interphase (SEI) film on the surface of the graphite anode was investigated by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS), indicating that TESM2 was effectively involved in the formation of SEI film on the surface of graphite.
SubtypeArticle
KeywordTriethoxysilane Electrolyte Additive Solid Electrolyte Interphase Graphite Anode Lithium-ion Batteries (Libs)
WOS HeadingsScience & Technology ; Technology ; Physical Sciences
DOI10.1631/jzus.A1300026
WOS Subject ExtendedEngineering ; Physics
WOS KeywordLITHIUM-ION BATTERIES ; PC-BASED ELECTROLYTE ; LI-ION ; TRIS-2-METHOXYETHOXY SILANE ; ELECTROCHEMICAL-BEHAVIOR ; VINYLENE CARBONATE ; CELLS ; PERFORMANCE ; SALT
Indexed BySCI
Language英语
WOS SubjectEngineering, Multidisciplinary ; Physics, Applied
WOS IDWOS:000322884900006
Citation statistics
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/9090
Collection中国科学院广州能源研究所
能源材料
Affiliation1.Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
Recommended Citation
GB/T 7714
Qin, Xue-ying,Wang, Jing-lun,Tang, Dao-ping,et al. Triethoxysilane with oligo(ethylene oxide) substituent as film forming additive for graphite anode[J]. JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A,2013,14(7):514-519.
APA Qin, Xue-ying,Wang, Jing-lun,Tang, Dao-ping,Mai, Yong-jin,&Zhang, Ling-zhi.(2013).Triethoxysilane with oligo(ethylene oxide) substituent as film forming additive for graphite anode.JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A,14(7),514-519.
MLA Qin, Xue-ying,et al."Triethoxysilane with oligo(ethylene oxide) substituent as film forming additive for graphite anode".JOURNAL OF ZHEJIANG UNIVERSITY-SCIENCE A 14.7(2013):514-519.
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