Enhanced performance of lithium sulfur batteries with conductive polymer modified separators

CORC > 上海硅酸盐研究所 > 中国科学院上海硅酸盐研究所 > 能量转换材料重点实验室 > 期刊论文

	Enhanced performance of lithium sulfur batteries with conductive polymer modified separators
	Ma, Guoqiang 1; Huang, Feifei 2; Wen, Zhaoyin 1; Wang, Qingsong 1; Hong, Xiaoheng 1; Jin, Jun 1; Wu, Xiangwei 1
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2016
卷号	4 期号:43 页码:16968-16974
英文摘要	The separators of Li-S batteries are modified with polypyrrole (PPy) nanotubes, PPy nanowires and reduced graphene oxide (rGO), respectively. All the conductive materials for the separator surface decoration can inhibit the migration of lithium polysulfides in the electrolyte and decrease the polarization of the sulfur cathode. Thus, the shuttle effect and redistribution of the active material can be suppressed during the charge/discharge process, resulting in enhanced performance. Moreover, the adsorption effect of PPy to lithium polysulfides is stronger compared to that of rGO, and the wettability of the PPy modified separators towards the electrolyte is much better, resulting in further enhanced electrochemical performance of Li-S batteries. Particularly, with approximately 2.5-3 mg cm(-2) sulfur loading, the Li-S battery using the PPy nanotube modified separator displays an initial discharge capacity of 1110.4 mA h g(-1), and a retained capacity of 801.6 mA h g(-1) after 300 cycles at 0.5C, demonstrating an average coulombic efficiency up to 90.6% in the LiNO3-free electrolyte.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary
研究领域[WOS]	Chemistry ; Energy & Fuels ; Materials Science
关键词[WOS]	LI-S BATTERY ; ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY ; CYCLE PERFORMANCE ; FUNCTIONAL INTERLAYER ; CATHODE MATERIALS ; CARBON PAPER ; NANOTUBES ; PROSPECTS ; SHUTTLE ; LIQUID
收录类别	SCI
语种	英语
WOS记录号	WOS:000387878700026
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/21959]
专题	上海硅酸盐研究所_能量转换材料重点实验室_期刊论文
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, CAS Key Lab Mat Energy Convers, Shanghai 200050, Peoples R China 2.China Jiliang Univ, Coll Mat Sci & Engn, Hangzhou 310018, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Ma, Guoqiang,Huang, Feifei,Wen, Zhaoyin,et al. Enhanced performance of lithium sulfur batteries with conductive polymer modified separators[J]. JOURNAL OF MATERIALS CHEMISTRY A,2016,4(43):16968-16974.
APA	Ma, Guoqiang.,Huang, Feifei.,Wen, Zhaoyin.,Wang, Qingsong.,Hong, Xiaoheng.,...&Wu, Xiangwei.(2016).Enhanced performance of lithium sulfur batteries with conductive polymer modified separators.JOURNAL OF MATERIALS CHEMISTRY A,4(43),16968-16974.
MLA	Ma, Guoqiang,et al."Enhanced performance of lithium sulfur batteries with conductive polymer modified separators".JOURNAL OF MATERIALS CHEMISTRY A 4.43(2016):16968-16974.