Ultrathin clay-containing layer-by-layer separator coating enhances performance of lithium-sulfur batteries
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چکیده
منابع مشابه
Safe and Durable High-Temperature Lithium-Sulfur Batteries via Molecular Layer Deposited Coating.
Lithium-sulfur (Li-S) battery is a promising high energy storage candidate in electric vehicles. However, the commonly employed ether based electrolyte does not enable to realize safe high-temperature Li-S batteries due to the low boiling and flash temperatures. Traditional carbonate based electrolyte obtains safe physical properties at high temperature but does not complete reversible electroc...
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Lithium-sulfur batteries are one of the most promising next-generation batteries due to their high theoretical specific capacity, but are impeded by the low utilization of insulating sulfur, unstable morphology of the lithium metal anode, and transport of soluble polysulfides. Here, by coating a layer of nano titanium dioxide and carbon black onto a commercial polypropylene separator, we demons...
متن کاملImproving the performance of lithium-sulfur batteries by conductive polymer coating.
Yuan Yang, Guihua Yu, Judy J. Cha, Hui Wu, Michael Vosgueritchian, Yan Yao, Zhenan Bao,* and Yi Cui* Department of Materials Science and Engineering, and Department of Chemical Engineering, Stanford University, Stanford, California 94305, United States and, SLAC National Accelerator Laboratory, Stanford Institute for Materials and Energy Sciences, 2575 Sand Hill Road, Menlo Park, California 940...
متن کاملUltrathin surface modification by atomic layer deposition on high voltage cathode LiNi0.5Mn1.5O4 for lithium ion batteries
Atomic layer deposition (ALD) has been employed to modify the surface of high voltage cathode LiNi0.5Mn1.5O4 by coating ultrathin Al2O3 layer on the electrodes. The ultrathin layer of Al2O3 can suppress the undesirable reactions during cycling, while maintaining the electron and ion conductivity of the electrode. The ALD Al2O3 coated LiNi0.5Mn1.5O4 showed remarkable improvement over bare LiNi0....
متن کاملAtomic-Layer-Deposition Functionalized Carbonized Mesoporous Wood Fiber for High Sulfur Loading Lithium Sulfur Batteries.
Lithium-sulfur battery (LSB) as one of the most promising energy storage devices suffers from poor conductivity of sulfur and fast capacity decay triggered by the dissolution of polysulfides. In this work, functionalized carbonized mesoporous wood fiber (f-CMWF) is employed as a host to accommodate sulfur for the first time. Natural wood microfiber has unique hierarchical and mesoporous structu...
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ژورنال
عنوان ژورنال: Electrochimica Acta
سال: 2021
ISSN: 0013-4686
DOI: 10.1016/j.electacta.2020.137454