Effect of Nitrile Group Functionalized Organosilicon as Electrolyte Additive on Low. temperature Performance of LiFePO4 Battery

doi:10.7503/cjcu20180773

	Effect of Nitrile Group Functionalized Organosilicon as Electrolyte Additive on Low. temperature Performance of LiFePO4 Battery
	Zhao Xinyue; Wang Jinglun; Yan Xiaodan; Zhang Lingzhi
刊名	CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
	2019-06-10
卷号	40 期号:6 页码:1258-1264
关键词	Organosilicon Nitrile group Electrolyte additive Low-temperature performance Lithium-ion battery
ISSN号	0251-0790
DOI	10.7503/cjcu20180773
通讯作者	Zhang Lingzhi(lzzhang@ms.giec.ac.cn)
英文摘要	A nitrile group functionalized organosilicon compound, 3-(diethoxy-methyl-silanyl)-propionitrile (DESCN) was synthesized and its chemical structure and electrochemical window were characterized. The effects of DESCN on the low-temperature performance of LiFePO4 cell were investigated by charge-discharge cycling test, scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS) and electrochemical impedance spectroscopy(EIS) and so on. It is revealed that adding 2% DESCN could improve the low-temperature performance of LiFePO4 cell. At - 20 degrees C, the cell exhibits a high discharge capacity of 73 mA.h/g and are stable after 50 cycles. DESCN involved in the formation of stable solid electrolyte interface(SEI) film to inhibit electrolyte decomposition and decrease the battery resistance, which facilitate Li+ diffusion and electron transportation at electrode/electrolyte interface at low-temperature.
资助项目	National Natural Science Foundation of China[51602312] ; Guangdong Provincial Project for Science and Technology, China[2015B010135008] ; Guangzhou Municipal Project for Science and Technology, China[201509010018]
WOS关键词	LITHIUM-ION CELLS ; CARBONATE ; GRAPHITE ; CATHODE ; CAPACITY ; ESTER ; ANODE
WOS研究方向	Chemistry
语种	英语
出版者	HIGHER EDUCATION PRESS
WOS记录号	WOS:000489907700022
资助机构	National Natural Science Foundation of China ; Guangdong Provincial Project for Science and Technology, China ; Guangzhou Municipal Project for Science and Technology, China
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/25832]
专题	中国科学院广州能源研究所
通讯作者	Zhang Lingzhi
作者单位	Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 GB/T 7714	Zhao Xinyue,Wang Jinglun,Yan Xiaodan,et al. Effect of Nitrile Group Functionalized Organosilicon as Electrolyte Additive on Low. temperature Performance of LiFePO4 Battery[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2019,40(6):1258-1264.
APA	Zhao Xinyue,Wang Jinglun,Yan Xiaodan,&Zhang Lingzhi.(2019).Effect of Nitrile Group Functionalized Organosilicon as Electrolyte Additive on Low. temperature Performance of LiFePO4 Battery.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,40(6),1258-1264.
MLA	Zhao Xinyue,et al."Effect of Nitrile Group Functionalized Organosilicon as Electrolyte Additive on Low. temperature Performance of LiFePO4 Battery".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 40.6(2019):1258-1264.