Fast electrochemical kinetics and strong polysulfide adsorption by a highly oriented MoS<sub>2</sub> nanosheet@N-doped carbon interlayer for lithium–sulfur batteries

Wu, Jingyi; Li, Xiongwei; Zeng, Hongxia; Yang, Xue; Chen, Fangyan; Xue, Zhigang; Ye, Yunsheng; Xie, Xiaolin

doi:10.1039/c9ta00458k

Cited by 94 publications

(47 citation statements)

References 48 publications

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“…On the basis of the physical/chemical adsorption effect, some trapping materials also exhibit good catalytic activity for the polysulfide reduction reaction . Metal sulfides like Co 9 S 8 , MoS 2 , VS 4, and WS 2 were used in lithium‐sulfur batteries as catalytic trapping materials. Yu et al developed an ultrathin and compact MoS 2 film that contains a large amount of flake edges with high catalytic activity, which could promote the reduction reaction of polysulfides and lead to an improved capacity (1010 mAh g −1 at 0.5 C ) and a lower decay rate (0.11% per cycle).…”

Section: Separators To Restrain Polysulfide Shuttle Effectmentioning

confidence: 99%

Mechanistic understanding of the role separators playing in advanced lithium‐sulfur batteries

Wei

Ren

Sokolowski

et al. 2020

InfoMat

232

146

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The lithium-sulfur battery is considered one of the most promising candidates for portable energy storage devices due to its low cost and high energy density.However, many critical issues, including polysulfide shuttling, self-discharge, lithium dendritic growth, and thermal hazards need to be addressed before the commercialization of lithium-sulfur batteries. To this end, tremendous efforts have been made to explore battery configurations and components, such as electrodes, electrolytes, and separators, among which the separator plays an especially critical role in addressing aforementioned issues. Thus, this review analyzes the mechanisms and interactions of these critical issues and summarizes both the function of separators and recent progress made towards remedying such issues. Additionally, promising directions for the development of separators in lithium-sulfur batteries are proposed. K E Y W O R D Slithium dendrite, lithium-sulfur batteries, self-discharge, separator, shuttle effect, thermal hazardsThe first two authors contributed equally to this work.

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Section: Separators To Restrain Polysulfide Shuttle Effectmentioning

confidence: 99%

Mechanistic understanding of the role separators playing in advanced lithium‐sulfur batteries

Wei

Ren

Sokolowski

et al. 2020

InfoMat

232

146

View full text Add to dashboard Cite

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“…Instead of forming a dense layer on the separator, Wu et al. directly coated a highly oriented MoS 2 nanosheets@N‐doped carbon (MoS 2 @NC) on the sulfur cathode . The homogeneous integration of a catalytic MoS 2 core and a conductive N‐doped carbon shell into a single material synergistically favored the polysulfide conversion kinetics.…”

Section: Application In Rechargeable Batteriesmentioning

confidence: 99%

Molybdenum Disulfide Based Nanomaterials for Rechargeable Batteries

Ciucci

Kim

2020

Chemistry A European J

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The rapid development of electrochemical energy storage systems requires new electrode materials with high performance. As at wo-dimensional material, molybdenum disulfide (MoS 2 )h as attracted increasing interest in energy storage applications due to its layered structure, tunable physical and chemical properties,a nd high capacity.I nt his review,t he atomic structuresa nd properties of different phases of MoS 2 are first introduced. Then, typical synthetic methods for MoS 2 and MoS 2 -basedc omposites are presented. Furthermore, the recent progress in the design of diverse MoS 2 -based micro/nanostructures for rechargeable batteries, including lithium-ion, lithium-sulfur,s odium-ion, potassiumion, and multivalent-ion batteries, is overviewed. Additionally,t he roles of advanced in situ/operando techniques and theoretical calculations in elucidating fundamentali nsights into the structural and electrochemical processes taking place in these materials during battery operation are illustrated. Finally,aperspective is given on how the properties of MoS 2 -based electrode materials are further improved and how they can find widespread application in the next-generation electrochemical energy-storage systems.[a] J.Apart from designing different nanostructured MoS 2 -based materials for battery applications, the fundamental understanding of reaction mechanisms, structuralp roperties, and phase transitions is vital to the development of improved electrode materials. As eries of in situ techniques, including XRD, [85] X-ray absorptions pectroscopy (XAS), [86] Raman, [66,75] andT EM, [85a, 87] have been adopted to provide insights into the electrochemical mechanismsr elated to MoS 2 -based electrodes, see Table 4.

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“…designed a core-shell nanostructure by integrating spherical MoS 2 with N-doped carbon. [75] Upon coating the interlayero nt he sulfur cathode, the composites could provide ac onstant flow of Li + and abundant active it on the separator to inhibit the LiPS shuttlee ffect. [76] Ar eversible capacity of 880 mA hg À1 at 0.2 Ca fter 100 cycles was obtained.…”

Section: Mos 2 As the Interlayer On Separatorsmentioning

confidence: 99%

Two‐Dimensional MoS₂ for Li−S Batteries: Structural Design and Electronic Modulation

Cao

Lin

et al. 2019

ChemSusChem

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Two‐dimensional molybdenum disulfide (MoS2) nanosheets attract great interest for applications in lithium–sulfur (Li−S) batteries, due to their unique physical and chemical properties, which originate from diverse chemical compositions and unique electronic structures. In recent years, many efforts have been devoted to employing MoS2 as a polysulfide immobilizer and catalyst, functional separator, and Li‐metal protection for Li−S batteries through structural design and electronic modulation. A fundamental understanding of the interplay between structural features, electronic properties, and advanced electrochemical performance is crucial for providing valuable insights for the development of Li−S batteries. In this regard, recent advances in Li−S batteries with 2D MoS2 materials are summarized from the perspective of structural design and electronic modulation. Finally, future prospects and remaining challenges of MoS2 for Li−S batteries are highlighted.

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Fast electrochemical kinetics and strong polysulfide adsorption by a highly oriented MoS₂ nanosheet@N-doped carbon interlayer for lithium–sulfur batteries

Abstract: Integrating polysulfide catalyst MoS2 nanosheets and conductive N-doped carbon in a core–shell design as an interlayer for lithium–sulfur batteries.

Cited by 94 publications

References 48 publications

Mechanistic understanding of the role separators playing in advanced lithium‐sulfur batteries

Mechanistic understanding of the role separators playing in advanced lithium‐sulfur batteries

Molybdenum Disulfide Based Nanomaterials for Rechargeable Batteries

Two‐Dimensional MoS₂ for Li−S Batteries: Structural Design and Electronic Modulation

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Fast electrochemical kinetics and strong polysulfide adsorption by a highly oriented MoS2 nanosheet@N-doped carbon interlayer for lithium–sulfur batteries

Abstract: Integrating polysulfide catalyst MoS2 nanosheets and conductive N-doped carbon in a core–shell design as an interlayer for lithium–sulfur batteries.

Cited by 94 publications

References 48 publications

Mechanistic understanding of the role separators playing in advanced lithium‐sulfur batteries

Mechanistic understanding of the role separators playing in advanced lithium‐sulfur batteries

Molybdenum Disulfide Based Nanomaterials for Rechargeable Batteries

Two‐Dimensional MoS2 for Li−S Batteries: Structural Design and Electronic Modulation

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Fast electrochemical kinetics and strong polysulfide adsorption by a highly oriented MoS₂ nanosheet@N-doped carbon interlayer for lithium–sulfur batteries

Two‐Dimensional MoS₂ for Li−S Batteries: Structural Design and Electronic Modulation