Results 31 to 40 of about 37,156 (387)

Mo‐O‐C Between MoS2 and Graphene Toward Accelerated Polysulfide Catalytic Conversion for Advanced Lithium‐Sulfur Batteries

Advancement of science, 2022
MoS2/C composites constructed with van der Waals forces have been extensively applied in lithium–sulfur (Li–S) batteries. However, the catalytic conversion effect on polysulfides is limited because the weak electronic interactions between the composite ...
Jiayu Zhang, Guo-yuan Xu, Qi Zhang, Xue Li, Yi Yang, Liwen Yang, Jianyu Huang, Guangmin Zhou   +7 more
semanticscholar   +1 more source

A zero dimensional model of lithium-sulfur batteries during charge and discharge [PDF]

, 2015
Lithium-sulfur cells present an attractive alternative to Li-ion batteries due to their large energy density, safety, and possible low cost. Their successful commercialisation is dependent on improving their performance, but also on acquiring sufficient ...
Marinescu, M, Offer, G, Zhang, T
core   +1 more source

Polysulfid-Radikalionen in Aceton / Polysulfide Radical Ions in Acetone

Zeitschrift für Naturforschung B, 1987
Abstract The formation of sulfur radical ions S 3 ~ and S 4 " in the blue and violet solutions of potassium sulfide and sulfur in acetone on adding 18C6 crown ether has been demonstrated by spectrophotometric titra-tion under anaerobic conditions. Neither the colour nor the spectra of the solutions point at S 2 ~.
F. Seel, M. Wagner
openaire   +2 more sources

Carbyne Polysulfide as a Novel Cathode Material for Rechargeable Magnesium Batteries

The Scientific World Journal, 2014
We report the formation of carbyne polysulfide by coheating carbon containing carbyne moieties and elemental sulfur. The product is proved to have a sp2 hybrid carbon skeleton with polysulfide attached on it.
Yanna NuLi, Qiang Chen, Weikun Wang, Ying Wang, Jun Yang, Jiulin Wang   +5 more
doaj   +1 more source

Effect of Varying the Ratio of Carbon Black to Vapor-Grown Carbon Fibers in the Separator on the Performance of Li–S Batteries

Nanomaterials, 2019
Lithium–sulfur (Li–S) batteries are expected to be very useful for next-generation transportation and grid storage because of their high energy density and low cost.
Hearin Jo, Jeonghun Oh, Yong Min Lee, Myung-Hyun Ryou   +3 more
doaj   +1 more source

Metal Polysulfides as High Capacity Electrode Active Materials — Toward Superior Secondary Batteries Based on Sulfur Chemistry

Electrochemistry, 2023
Lithium/transition-metal polysulfide batteries are a promissing candidate for next-generation batteries with high energy densities. Transition metal polysulfides and lithium- or sodium-containing transition metal sulfides exhibit large reversible ...
Atsushi SAKUDA
doaj   +1 more source

High mass-loading of sulfur-based cathode composites and polysulfides stabilization for rechargeable lithium/sulfur batteries.

Frontiers in Energy Research, 2015
Although sulfur has a high theoretical gravimetric capacity, 1672 mAh/g, its insulating nature requires a large amount of conducting additives: this tends to result in a low mass-loading of active material (sulfur), and thereby, a lower capacity than ...
Toru eHara, Toru eHara
doaj   +1 more source

An ultrathin and crack‐free metal‐organic framework film for effective polysulfide inhibition in lithium–sulfur batteries

Interdisciplinary Materials
Due to their extensive microporous structure, metal‐organic frameworks (MOFs) find widespread application in constructing modification layers, functioning as ion sieves.
Cheng Zhou, Chenxu Dong, Weixiao Wang, Yu Tian, Chunli Shen, Kaijian Yan, Liqiang Mai, Xu Xu   +7 more
semanticscholar   +1 more source

A saccharide-based binder for efficient polysulfide regulations in Li-S batteries

Nature Communications, 2021
The viability of lithium-sulfur batteries as an energy storage technology depends on unlocking long-term cycle stability. Most instability stems from the release and transport of polysulfides from the cathode, which causes mossy growth on the lithium ...
Yingying Huang, M. Shaibani, Tanesh D Gamot, Mingchao Wang, Petar Jovanović, M. C. Dilusha Cooray, Meysam Sharifzadeh Mirshekarloo, R. Mulder, N. Medhekar, M. Hill, M. Majumder   +10 more
semanticscholar   +1 more source

Synthesis and crystal structure of (1,4,7,10-tetraazacyclododecane-κ4N)(tetrasulfido-κ2S1,S4)manganese(II)

Acta Crystallographica Section E: Crystallographic Communications, 2020
The title compound, [Mn(S4)(C8H20N4)], was accidentally obtained by the hydrothermal reaction of Mn(ClO4)2·6H2O, cyclen (cyclen = 1,4,7,10-tetraazacyclododecane) and Na3SbS4·9H2O in water at 413 K, indicating that polysulfide anions might represent ...
Felix Danker, Christian Näther, Wolfgang Bensch   +2 more
doaj   +1 more source