Results 201 to 210 of about 2,092 (245)
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Advanced Materials, 2018
AbstractLithium–sulfur batteries are regarded as one of the most promising candidates for next‐generation rechargeable batteries. However, the practical application of lithium–sulfur (Li–S) batteries is seriously impeded by the notorious shuttling of soluble polysulfide intermediates, inducing a low utilization of active materials, severe self ...
Shuibin Tu +7 more
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AbstractLithium–sulfur batteries are regarded as one of the most promising candidates for next‐generation rechargeable batteries. However, the practical application of lithium–sulfur (Li–S) batteries is seriously impeded by the notorious shuttling of soluble polysulfide intermediates, inducing a low utilization of active materials, severe self ...
Shuibin Tu +7 more
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Formation of lithium polysulfides in aprotic media
Journal of Inorganic and Nuclear Chemistry, 1977Abstract The formation of Li 2 S n in certain aprotic media can be accomplished either by electrochemical reduction of S 8 or by direct in situ reaction of S 8 with Li or Li 2 S. Polysulfide solubilities and spectra vary widely in different solvents as a result of solvent-solute interactions. A requirement for high polysulfide concentration is
R.D. Rauh +3 more
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Kinetics of Lithium-Polysulfide Flow Batteries
ECS Meeting Abstracts, 2014We recently demonstrated that the high solubility of polysulfides in nonaqueous electrolytes can be exploited to make a high energy density lithium-sulfur flow battery with low storage cost1–3. Here we used a new approach, whereby percolating networks of nanoscale conductor particles (in this case carbon black) are incorporated within the electrode ...
Frank Fan +6 more
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Effect of Lithium Polysulfide As Electrolyte Additive in Lithium Sulfur Batteries
ECS Meeting Abstracts, 2014Recently, the lithium–sulfur battery is considered as a high-energy-density storage and power device for sustainable electric vehicles (EVs) due to its high theoretical energy density and natural abundanc.1 However, there are some drawbacks to introduce this battery into commercial devices.
D. J. Lee +7 more
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ACS Applied Materials & Interfaces, 2021
Based on dissolution/deposition chemistry, together with multielectron redox reactions, lithium-sulfur (Li-S) batteries have been demonstrated as a promising energy storage system. However, the diffusion of soluble lithium polysulfide intermediates (LiPSs) to bulk electrolyte results in the fast capacity fade of a Li-S cell.
Junfeng Wu +5 more
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Based on dissolution/deposition chemistry, together with multielectron redox reactions, lithium-sulfur (Li-S) batteries have been demonstrated as a promising energy storage system. However, the diffusion of soluble lithium polysulfide intermediates (LiPSs) to bulk electrolyte results in the fast capacity fade of a Li-S cell.
Junfeng Wu +5 more
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Polysulfide Tandem Conversion for Lithium–Sulfur Batteries
SmallAbstractThe electrocatalytic conversion of 16‐electron multistep polysulfides is crucial for lithium–sulfur batteries, while it is hard to achieve compatibility between intricate sulfur reduction processes and appropriate catalysts. Herein, a tandem conversion strategy is reported to boost multi‐step intermediate reactions of polysulfides ...
Zhilong Wang +8 more
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Direct Visualization of Lithium Polysulfides and Their Suppression in Liquid Electrolyte
Nano Letters, 2020Understanding of lithium polysulfide (Li-PS) formation and the shuttle phenomenon is essential for practical application of the lithium/sulfur (Li/S) cell, which has superior theoretical specific energy (2600 Wh/kg). However, it suffers from the lack of direct observation on behaviors of soluble Li-PS in liquid electrolytes.
Hyeon Kook Seo +7 more
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The Mechanism of Electrochemical Reduction of Lithium Polysulfides in Lithium-Sulfur Cells
ECS Meeting Abstracts, 2010Abstract not Available.
Vladimir Kolosnitsyn +2 more
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Two-Stage Solvation of Lithium Polysulfides in Working Lithium–Sulfur Batteries
Journal of the American Chemical SocietyLithium-sulfur (Li-S) batteries are promising in achieving high energy density but inferior in cycling lifespan since Li polysulfides (LiPSs) corrode Li metal anode. Weakening the electrolyte solvating power (ESP) for LiPSs effectively mitigates anodic corrosion but inevitably retards cathodic reaction kinetics.
Xi-Yao Li +12 more
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Chemical Confinement and Utility of Lithium Polysulfides in Lithium Sulfur Batteries
Small Methods, 2019AbstractLithium sulfur (Li–S) batteries featuring abundant resources and cost‐efficiency are regarded as a promising next‐generation energy storage system with high theoretical capacity and energy density. However, several drawbacks impede the development of Li–S batteries, especially the shuttle effects of soluble lithium polysulfides (LiPS) which ...
Tianyu Tang, Yanglong Hou
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