Results 251 to 260 of about 239,616 (302)

Li–S batteries: Firing for compactness

Nature Energy, 2017
Conventional Li–S batteries have a non-compact cathode structure containing low areal loading of active materials. Now, a strategy of burning Li foils in a CS2 vapour is presented, which leads to the formation of highly compact Li2S nanoparticles as a lithiated sulfur cathode, offering promising battery performance.
Yanguang Li, Fengjiao Chen
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Advanced Planar Li-S Batteries

ECS Meeting Abstracts, 2016
Ceramatec is developing new batteries that make use of a non-porous, high ion conductivity ceramic membrane employing a lithium-sulfur (Li-S) battery chemistry. Porous separators found in today’s batteries contain liquids that negatively impact cycle life.
Feng Zhao, Zhonghe Bi, David Beacco, Dennis Larsen   +3 more
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The Role of Metal Disulfide Interlayer in Li–S Batteries

The Journal of Physical Chemistry C, 2017
Recently many observations related to the catalytic effects of layered metal disulfide versus polysulfide electrochemistry were documented. In this work, we investigated the reactivity of layered WS2 in a Li-S battery and observed a chemical reaction involving the removal of W ions by polysulfides. The presence of metallic tungsten nanoparticles in the
Andrea Paolella, Dharminder Laul, Vladimir Timoshevskii, Wen Zhu, Sergio Marras, Giovanni Bertoni, Alexander Sean Wahba, Gabriel Girard, Catherine Gagnon, Lisa Rodrigue, Basile Commarieu, Abdelbast Guerfi, Raynald Gauvin, Michel L. Trudeau, Ashok Vijh, Michel Armand, Karim Zaghib   +16 more
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Outline of Li–S Battery Project

2021
In this project, Li–S batteries have been investigated by a team comprising 12 principal investigators. In particular, we focused on developing Li–S batteries with sparingly solvating electrolytes for cathode active materials. Prior to the start of our project, the dissolution of the discharge products of sulfur (lithium polysulfides: Li2Sx, x = 8 ~ 2)
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Equivalent Circuit Modelling of Li-S Batteries

ECS Transactions, 2021
The presented article describes a Multi-Scale Multi-Domain model of a Li-S battery using an equivalent circuit model consisting of R-C pairs. The parameters of the equivalent circuit model were obtained by fitting experimentally measured results from electrochemical impedance spectroscopy at various states of charge.
Martin Mačák, Tomáš Kazda, Kamil Jasso, Petr Vyroubal   +3 more
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In Situ Techniques for Developing Robust Li–S Batteries

Small Methods, 2018
AbstractRechargeable lithium–sulfur batteries (LSBs) are of great interest in the field of energy storage due to their favorable operational characteristics, for example, high theoretical energy density and low cost. However, LSBs are limited by long‐term degradation, caused by the dissolution of intermediate lithium polysulfide phases.
Ming Li, Zhila Amirzadeh, Roland De Marco, Xin Fu Tan, Andrew Whittaker, Xia Huang, Roger Wepf, Ruth Knibbe   +7 more
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Engineering Cooperative Catalysis in Li–S Batteries

Advanced Energy Materials, 2023
AbstractLithium–sulfur (Li–S) batteries are regarded to be one of the most promising next‐generation batteries owing to the merits of high theoretical capacity and low cost. However, the aprotic S electrochemistry is hampered by the shuttling effect and sluggish conversion of soluble lithium polysulfides (LiPSs).
Jinlei Qin, Rui Wang, Pei Xiao, Deli Wang   +3 more
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Is overprotection of the sulfur cathode good for Li–S batteries?

Chemical Communications, 2015
Moderate dissolution of polysulfides in the electrolyte is indispensable for the high-efficiency and stable discharge/charge cycling of Li–S batteries.
Tian, Gao, Jie, Shao, Xingxing, Li, Guobin, Zhu, Qiujian, Lu, Yuyao, Han, Qunting, Qu, Honghe, Zheng   +7 more
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Li-S Batteries at a Crossroads

ECS Meeting Abstracts, 2016
This talk will provide an overview of Li-S batteries, including conventional liquid cells and the important advances that have been made in understanding the chemistry and improving upon it, and will address new opportunities in solid state sulfur cells.
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Electrospinning of Nanofibers for Li–S Battery

2020
Li-ion batteries have been widely used in portable electronic devices owing to their excellent assets such as high energy/power density and long operating life. There is an urgent demand to develop high-performance electrode materials with the high capability to store and distribute energy more effectively to additional boost the performance of LIBs ...
Shengjie Peng, P. Robert Ilango
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