In Situ Observation and Electrochemical Study of Encapsulated Sulfur Nanoparticles by MoS2 Flakes.

@article{Tang2017InSO,
  title={In Situ Observation and Electrochemical Study of Encapsulated Sulfur Nanoparticles by MoS2 Flakes.},
  author={Wei Tang and Zhongxin Chen and Bingbing Tian and Hyun‐Wook Lee and Xiaoxu Zhao and Xiaofeng Fan and Yanchen Fan and Kai Leng and Chengxin Peng and Min-Ho Kim and Meng Li and Ming Lin and Jie Su and Jianyi Chen and Hu Young Jeong and Xuesong Yin and Qianfan Zhang and Wu Zhou and Kian Ping Loh and Guangyuan Wesley Zheng},
  journal={Journal of the American Chemical Society},
  year={2017},
  volume={139 29},
  pages={
          10133-10141
        }
}
Sulfur is an attractive cathode material for next-generation lithium batteries due to its high theoretical capacity and low cost. However, dissolution of its lithiated product (lithium polysulfides) into the electrolyte limits the practical application of lithium sulfur batteries. Here we demonstrate that sulfur particles can be hermetically encapsulated by leveraging on the unique properties of two-dimensional materials such as molybdenum disulfide (MoS2). The high flexibility and strong van… 
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Encapsulation methods of sulfur particles for lithium-sulfur batteries: A review
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TLDR
Th thin-layered MoS2 nanoparticles (MoS2-NPs) synthesized through a one-pot method and coated onto a commercial polymeric separator as an effective LiPS mediator are presented here, able to effectively anchor the LiPS species to their large S2- anions, enhancing the redox accessibility of sulfur cathodes and enabling better capacity retention.
Encapsulation of Sulfur into N-Doped Porous Carbon Cages by a Facile, Template-Free Method for Stable Lithium-Sulfur Cathode.
TLDR
A facile, template-free procedure based on controlled pyrolysis of polydopamine vesicles is described to prepare N-doped porous carbon cages (NHSC) as a new sulfur host, which significantly improves both the sulfur utilization and cycling stability.
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Rational Fabrication of Nitrogen, Sulfur Co-Doped Carbon Nanotubes/MoS2 for High-Performance Lithium-Sulfur Batteries.
TLDR
The NSCNTs intensify the flexibility and construct a conductive framework for rapid ions/electrons transfer while the electrocatalysis of MoS2 manages sulfur reaction chemistry in two ways, it immobilizes LiPSs chemically via Li-S bonds and also kinetically speeds up sulfur redox reactions.
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Self-standing sulfur cathodes enabled by 3D hierarchically porous titanium monoxide-graphene composite film for high-performance lithium-sulfur batteries
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References

SHOWING 1-10 OF 66 REFERENCES
Confined Sulfur in Microporous Carbon Renders Superior Cycling Stability in Li/S Batteries
The use of sulfur in the next generation Li-ion batteries is currently precluded by its poor cycling stability caused by irreversible Li 2 S formation and the dissolution of soluble polysulfi des in…
Encapsulation of sulfur with thin-layered nickel-based hydroxides for long-cyclic lithium–sulfur cells
TLDR
The present encapsulation strategy and understanding of hydroxide working mechanisms may advance progress on the development of lithium/sulfur cells for practical use.
Understanding the role of different conductive polymers in improving the nanostructured sulfur cathode performance.
TLDR
The capability of three of the most well-known conductive polymers in improving long-term cycling stability and high-rate performance of the sulfur cathode decreased in the order of PEDOT > PPY > PANI.
Metal-Sulfur Battery Cathodes Based on PAN-Sulfur Composites.
TLDR
This work creates a family of sulfur/PAN (SPAN) nanocomposites in which sulfur is maintained as S3/S2 during all stages of the redox process and shows a full and reversible reduction and oxidation between elemental sulfur and Li-ions in the electrolyte to produce Li2S as the only discharge product over hundreds of cycles of charge and discharge.
A sulfur host based on titanium monoxide@carbon hollow spheres for advanced lithium–sulfur batteries
TLDR
A sulfur host that overcomes both obstacles at once for the success of lithium–sulfur batteries by using the polar shells to prevent their outward diffusion and avoids the need for chemically bonding all lithium-polysulfides on the surfaces of polar particles.
Electrochemical (de)lithiation of 1D sulfur chains in Li-S batteries: a model system study.
TLDR
The unique electrochemistry of S chains supplements the existing knowledge of the S cathode mechanism and provides avenues for rational design of S cathodes materials in Li-S batteries.
Synthesis of three-dimensionally interconnected sulfur-rich polymers for cathode materials of high-rate lithium–sulfur batteries
Elemental sulfur is one of the most attractive cathode active materials in lithium batteries because of its high theoretical specific capacity. Despite the positive aspect, lithium–sulfur batteries…
A highly ordered nanostructured carbon-sulphur cathode for lithium-sulphur batteries.
TLDR
The feasibility to approach high gravimetric capacities of the Li-S battery by creating highly ordered interwoven composites is reported, conceptually providing new opportunities for materials scientists for tailored design that can be extended to many different electrode materials.
In Situ Study of Lithiation and Delithiation of MoS2 Nanosheets Using Electrochemical Liquid Cell Transmission Electron Microscopy.
TLDR
Repeated experiments show that some MoS2 nanosheets do not decompose upon lithiation, and an in situ electrochemical liquid cell TEM study sheds light on battery degradation mechanisms.
Electrocatalytic Polysulfide Traps for Controlling Redox Shuttle Process of Li-S Batteries.
TLDR
An electrocatalysis approach is presented to demonstrate preferential adsorption of a solublepolysulfide species, formed during discharge process, toward the catalyst anchored sites of graphene and their efficient transformation to long-chain polysulfides in the subsequent redox process.
...
1
2
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4
5
...