Enabling fast diffusion/conversion kinetics by thiourea-induced wrinkled N, S co-doped functional MXene for lithium-sulfur battery

Feng, Junan; Liu, Wendong; Shi, Chuan; Zhang, Chaoyue; Zhao, Xiaoxian; Wang, Tianyi; Chen, Shuangqiang; Li, Qiang; Song, Jianjun

doi:10.1016/j.ensm.2024.103328

Cited by 17 publications

(3 citation statements)

References 52 publications

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“…This structural rearrangement is similar to that reported in some related works. 102−104 As shown in Figure 9a, Song et al 105 prepared thioureainduced N and S co-doped functionalized MXene wrinkled nanosheets (NSMX) as a separator modification layer by a simple method. Theoretical calculations show that the introduction of N and S will induce the d-band center of the transition metal Ti, thereby inducing the strong bonding of N and S atoms to polysulfides and, thus, exhibiting excellent polysulfide adsorption capacity and reversible catalysis.…”

Section: Separator Modificationmentioning

confidence: 99%

“…can enhance the catalytic behavior of the matrix material. Moreover, metals, metal compounds, and metal single atoms also have strong catalytic effects on polysulfides. − , In this regard, some in situ oxidation strategies on the surface of MXene are still applicable to the preparation of more adsorbable metal oxides. Yang et al constructed a TiO 2 –MXene heterostructure in situ , which has strong polysulfide adsorption capacity and excellent catalytic conversion activity.…”

Section: Separator Modificationmentioning

confidence: 99%

“…(b) Rate performance and (c) long cycle performance of cells with the NSMX-modified separator. The in situ Raman spectra of LSBs with (d) PP and (e) NSMX separators at 0.5 C. Panels a–e were reproduced with permission from ref . Copyright 2024 Elsevier.…”

Section: Separator Modificationmentioning

confidence: 99%

See 2 more Smart Citations

Multifunction of MXene in Lithium–Sulfur Batteries: A Review

Yang,

Liu,

Zhao

et al. 2024

Energy Fuels

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Lithium−sulfur batteries (LSBs) are a new type of energy storage system with great potential, which has an ultrahigh energy density of 2600 Wh kg −1 . However, the polysulfide shuttle and dendrite growth have seriously impeded practical applications. As a new type of twodimensional (2D) transition metal carbide/nitride, MXene possesses the advantages of metal conductivity, structural diversity, and abundant terminal groups. Thus, it is beneficial to regulate the dynamic process of ions, which make it widely applied in LSBs. Guided by the multifunction of MXene in LSBs, this work summarizes the application of MXene for cathode construction, separator modification, anode protection, and electrolyte regulation. Recent related works are reviewed from the aspects of MXene-based morphology adjustment, element doping, surface modification, and composite material construction. Finally, the challenges and application prospects of MXene are prospected.

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Section: Separator Modificationmentioning

confidence: 99%

Section: Separator Modificationmentioning

confidence: 99%

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Multifunction of MXene in Lithium–Sulfur Batteries: A Review

Yang,

Liu,

Zhao

et al. 2024

Energy Fuels

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Atom‐Level 2D Catalysts Accelerating Deposition/Dissolution Kinetics in Lithium–Sulfur Batteries

Cheng,

Huang,

et al. 2024

Adv Funct Materials

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The performance of high‐energy‐density lithium–sulfur (Li–S) batteries is limited by the unmanageable deposition/dissolution kinetics of lithium anode and sulfur cathode, leading to subpar electrochemical efficiency. Prior to being deposited on the electrolyte/electrode interface or within the interior, the solvated lithium‐ion (Li+) must undergo de‐solvation to produce free Li+ ions. These ions then participate in subsequent Redox reactions. The sulfur cathode faces challenges related to solid–liquid transformation and polysulfide conversion/shuttle, which impact the deposition/dissolution process. These issues collectively create insurmountable electrochemical barriers in lithium–sulfur batteries. Atom‐level 2D catalysts, contributing to the consummate atomic efficiency (≈100 at%), play an important role in accelerating deposition/dissolution kinetics in lithium–sulfur batteries. In the review, the preparation of atom‐level 2D catalysts and catalytic kinetic process on accelerating Li+ de‐solvation, Li0 stripping/dissolution, Li0 nucleation/deposition of lithium anode, polysulfide conversion, and LixS deposition of sulfur cathode are summarized, and the outlook of high‐performance single‐atom, multiple atoms modified 2D catalysts in lithium, sodium, and zinc‐based batteries is putting forward.

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Physical Field Effects to Suppress Polysulfide Shuttling in Lithium–Sulfur Battery

Feng,

Shi,

Zhao

et al. 2024

Advanced Materials

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Lithium–sulfur batteries (LSB) with high theoretical energy density are plagued by the infamous shuttle effect of lithium polysulfide (LPS) and the sluggish sulfur reduction/evolution reaction. Extensive research is conducted on how to suppress shuttle effects, including physical structure confinement engineering, chemical adsorption strategy, and the design of sulfur redox catalysts. Recently, the rational design to mitigate shuttle effects and enhance reaction kinetics based on physical field effects has been widely studied, providing a more fundamental understanding of interactions with sulfur species. Herein, the physical field effect is focused and their methods and mechanisms of interaction are summarized systematically with LPS. Overall, the working principle of LSB system, the origin of the shuttle effect, and kinetic trouble in LSB are briefly described. Then, the mechanism and application of rational design of materials based on physical field effect concepts and the external physical field‐assisted LSB are elaborated, including electrostatic force, built‐in electric field, spin state regulation, strain engineering, external magnetic field, photoassisted and other physical field‐assisted strategies are pivotally elaborated and discussed. Finally, the potential directions of physical field effects in enhancing the performance and weakening the shuttle effect of high‐energy LSB are summarized and anticipated.

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Enabling fast diffusion/conversion kinetics by thiourea-induced wrinkled N, S co-doped functional MXene for lithium-sulfur battery

Cited by 17 publications

References 52 publications

Multifunction of MXene in Lithium–Sulfur Batteries: A Review

Multifunction of MXene in Lithium–Sulfur Batteries: A Review

Atom‐Level 2D Catalysts Accelerating Deposition/Dissolution Kinetics in Lithium–Sulfur Batteries

Physical Field Effects to Suppress Polysulfide Shuttling in Lithium–Sulfur Battery

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