In-situ activated polycation as a multifunctional additive for Li-S batteries

CORC > 苏州纳米技术与纳米仿生研究所 > 中国科学院苏州纳米技术与纳米仿生研究所 > 纳米研究国际实验室 > 陈立桅团队

	In-situ activated polycation as a multifunctional additive for Li-S batteries
	Chen, HW(陈宏伟); Wang, CH(王长虹); Dai, YF; Ge, J(葛军); Lu, W(卢威); Yang, JL; Chen, LW(陈立桅)
刊名	NANO ENERGY
	2016
卷号	26
通讯作者	Chen, LW(陈立桅)
英文摘要	While Li-S batteries are poised to be the next generation high-density energy storage devices, the low sulfur utilization and intrinsic polysulfide shuttle have limited their practical applications. Here, we report that radical polymer Poly(2,2,6,6-tetramethyl-1-piperidinyloxy-4-yl methacrylate) (PTMA) a stable free radical polymer reported to be potential organic electrode materials can perform as a multifunctional sulfur-trapping and catalytic binder for high performance Li-S batteries once activated via in situ electrochemical oxidation. The activated PTMA(+) not only displays strong binding affinity to poly sulfides but also provides PTMA(+)-assisted additional redox sites and improves the kinetics of the cathode reaction. Thus the novel multifunctional additive for Li-S batteries results in improved cycle life, faster rate performance and most importantly, a significantly increase in specific discharge capacity by 80%, with specific capacity of 1254 mAh/g and Coulombic efficiency of 96% at a four-hour charge/discharge (C/4) current rate. (C) 2016 Elsevier Ltd. All rights reserved.
关键词[WOS]	LITHIUM-SULFUR BATTERIES ; ELECTRON-AFFINITY ; GRAPHENE OXIDE ; PERFORMANCE ; CATHODES ; CHEMISTRY ; POLYMER ; ENERGY ; BINDER ; POLYSULFIDES
收录类别	SCI ; EI
语种	英语
WOS记录号	WOS:000384908700006
内容类型	期刊论文
源URL	[http://ir.sinano.ac.cn/handle/332007/4921]
专题	苏州纳米技术与纳米仿生研究所_纳米研究国际实验室_陈立桅团队
推荐引用方式 GB/T 7714	Chen, HW,Wang, CH,Dai, YF,et al. In-situ activated polycation as a multifunctional additive for Li-S batteries[J]. NANO ENERGY,2016,26.
APA	Chen, HW.,Wang, CH.,Dai, YF.,Ge, J.,Lu, W.,...&Chen, LW.(2016).In-situ activated polycation as a multifunctional additive for Li-S batteries.NANO ENERGY,26.
MLA	Chen, HW,et al."In-situ activated polycation as a multifunctional additive for Li-S batteries".NANO ENERGY 26(2016).