气候变化领域集成服务门户(CCPortal): Ad hoc solid electrolyte on acidized carbon nanotube paper improves cycle life of lithium-sulfur batteries

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DOI	10.1039/c7ee01898c
	Ad hoc solid electrolyte on acidized carbon nanotube paper improves cycle life of lithium-sulfur batteries
	Xu G.; Kushima A.; Yuan J.; Dou H.; Xue W.; Zhang X.; Yan X.; Li J.
发表日期	2017
ISSN	17545692
起始页码	2544
结束页码	2551
卷号	10 期号:12
英文摘要	The performance of lithium-sulfur (Li-S) batteries is greatly improved by using acidized carbon nanotube paper (ACNTP) to induce in situ polymerization of ether-based DOL/DME liquid to grow an ion-selective solid barrier, to seal in soluble polysulfides on the cathode side. The Li-S battery with the in situ barrier showed an initial specific capacity of 683 mA h g-1 at a high current density of 1675 mA g-1, and maintained a discharge capacity of 454 mA h g-1 after 400 cycles. The capacity decay rate was 0.1% per cycle and a high Coulombic efficiency of 99% was achieved. Experimental characterizations and theoretical models demonstrate the in situ polymerized solid barrier stops sulfur transport while still allowing bidirectional Li+ transport, alleviating the shuttle effect and increasing the cycling performance. The soft and sticky nature of the solid electrolyte barrier makes it a good sealant, forming an enclosed catholyte chamber on the sulfur side. © The Royal Society of Chemistry.
英文关键词	Carbon nanotubes; Decay (organic); Electric batteries; Electrolytes; Lithium; Lithium compounds; Lithium sulfur batteries; Nanotubes; Secondary batteries; Solid electrolytes; Sulfur; Sulfur compounds; Yarn; Coulombic efficiency; Cycling performance; Discharge capacities; Experimental characterization; High current densities; In-situ polymerization; Polymerized solids; Specific capacities; Lithium batteries; carbon nanotube; electrolyte; energy efficiency; equipment component; experimental study; lithium; performance assessment; polymerization; sulfur
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190355
作者单位	Jiangsu Key Laboratory of Material and Technology for Energy Conversion, College of Material Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China; Department of Nuclear Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139, United States; Advanced Materials Processing and Analysis Center, Department of Materials Science and Engineering, University of Central Florida, Orlando, FL 32816, United States; School of Material Science and Engineering, Jiangsu University, Zhenjiang, 212013, China
推荐引用方式 GB/T 7714	Xu G.,Kushima A.,Yuan J.,et al. Ad hoc solid electrolyte on acidized carbon nanotube paper improves cycle life of lithium-sulfur batteries[J],2017,10(12).
APA	Xu G..,Kushima A..,Yuan J..,Dou H..,Xue W..,...&Li J..(2017).Ad hoc solid electrolyte on acidized carbon nanotube paper improves cycle life of lithium-sulfur batteries.Energy & Environmental Science,10(12).
MLA	Xu G.,et al."Ad hoc solid electrolyte on acidized carbon nanotube paper improves cycle life of lithium-sulfur batteries".Energy & Environmental Science 10.12(2017).