Ultra-thin solid electrolyte interphase evolution and wrinkling processes in molybdenum disulfide-based lithium-ion batteries

Wan, Jing; Yang, Hao; Shi, Yang; Song, Yuexian; Yan, Hui‐Juan; Zheng, Jian; Wen, Rui; Li, Wan

doi:10.1038/s41467-019-11197-7

Cited by 81 publications

(57 citation statements)

References 55 publications

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“…The large surface area and weak out‐of‐plane van der Waals (vdW) interactions in these materials, can overcome the current challenges of poor electronic conductivity and damaging volumetric fluctuations during the intercalation and de‐intercalation. These materials, therefore, can find applications as various components of LIBs and sodium‐ion‐batteries (SIBs), including electrolytes, separators, as well as electrodes 20‐24 . Interestingly, the first rechargeable LIB, marketed by Exxon in the 1970s, consisted of the TMD, TiS 2 , as the cathode 25 .…”

Section: Introductionmentioning

confidence: 99%

Vertically Stacked 2H‐1T Dual‐Phase MoS₂ Microstructures during Lithium Intercalation: A First Principles Study

et al. 2020

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Layered transition‐metal dichalcogenides (TMDs) have shown promise to replace carbon‐based compounds as suitable anode materials for Lithium‐ion batteries (LIBs) owing to facile intercalation and de‐intercalation of lithium (Li) during charging and discharging, respectively. While the intercalation mechanism of Li in mono‐ and bi‐layer TMDs has’ been thoroughly examined, mechanistic understanding of Li intercalation‐induced phase transformation in bulk or films of TMDs is still largely unexplored. This study investigates possible scenarios during sequential Li intercalation and aims to gain a mechanistic understanding of the phase transformation in bulk MoS2 using density functional theory (DFT) calculations. The manuscript examines the role of concentration and distribution of Li‐ions on the formation of dual‐phase 2H‐1T microstructures that have been observed experimentally. The study demonstrates that lithiation would proceed in a systematic layer‐by‐layer manner wherein Li‐ions diffuse into successive interlayer spacings to render local phase transformation of the adjacent MoS2 layers from 2H‐to‐1T phase in the multilayered MoS2. This local phase transition is attributed to partial ionization of Li and charge redistribution around the metal atoms and is followed by subsequent lattice straining. In addition, the stability of single‐phase vs. multiphase intercalated microstructures, and the origins of structural changes accompanying Li‐ion insertion are investigated at atomic scales.

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Section: Introductionmentioning

confidence: 99%

Vertically Stacked 2H‐1T Dual‐Phase MoS₂ Microstructures during Lithium Intercalation: A First Principles Study

et al. 2020

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“…[ 75,77 ] Moreover, in situ AFM is also highly useful in tracking the initial SEI formation at the electrode, which provides explicit insights on the preferential position, morphology evolution, and uniformity of the SEI. [ 68a,78 ] Recently, cryo‐TEM is developed as an advantageous technique to finely scrutinize the SEI structure. [ 79 ] The pristine state of the SEI can be well preserved under cryogenic condition.…”

Section: Structure and Component Models Of Seimentioning

confidence: 99%

Toward Critical Electrode/Electrolyte Interfaces in Rechargeable Batteries

Yan

Xiao

et al. 2020

Adv Funct Materials

346

234

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The electrode/electrolyte interface plays a critical role in stabilizing the cycling performance and prolonging the service life of rechargeable batteries to meet the sustainable energy requirements of the mobile society. The understanding of interfaces is still at the preliminary stage due to the limited research techniques and variable properties with time and potential. Herein, the latest developments focused on the interfaces in rechargeable systems including the cathode electrolyte interphase (CEI) and solid electrolyte interphase (SEI) are reviewed. The possible formation mechanisms of the electrode/electrolyte interface are discussed, followed by the introduction of two key influencing factors, specific adsorption and solvated coordinate structure, which will dominate the formation of the interface. Finally, the structure and chemical composition of the interface as well as the possible transport mechanism of lithium ions in the interface and the strategies to regulate the pathway through the interface are presented in detail. This work sheds light on the fundamental understanding of the interface and provides rational scientific principles in designing the electrode/electrolyte interface and inspires the rational design of long‐term cycling rechargeable batteries.

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“…The microreactor has following advantages: 1) A single tiny sample can be tested, and the specifically designed structure can be investigated and quantified. [27] 2) Electron-hole instantaneous recombination resulted from mutual interference and hybridization materials can be effectively avoided in microreactor, thus improving light utilization rate per unit area.…”

Section: Doi: 101002/advs202002172mentioning

confidence: 99%

Seamlessly Splicing Metallic Sn_xMo₁₋_xS₂ at MoS₂ Edge for Enhanced Photoelectrocatalytic Performance in Microreactor

Shao

Hong

et al. 2020

Advanced Science

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Accurate design of the 2D metal-semiconductor (M-S) heterostructure via the covalent combination of appropriate metallic and semiconducting materials is urgently needed for fabricating high-performance nanodevices and enhancing catalytic performance. Hence, the lateral epitaxial growth of M-S Sn x Mo 1−x S 2 /MoS 2 heterostructure is precisely prepared with in situ growth of metallic Sn x Mo 1−x S 2 by doping Sn atoms at semiconductor MoS 2 edge via one-step chemical vapor deposition. The atomically sharp interface of this heterostructure exhibits clearly distinguished performance based on a series of characterizations. The oxygen evolution photoelectrocatalytic performance of the epitaxial M-S heterostructure is 2.5 times higher than that of pure MoS 2 in microreactor, attributed to the efficient electron-hole separation and rapid charge transfer. This growth method provides a general strategy for fabricating seamless M-S lateral heterostructures by controllable doping heteroatoms. The M-S heterostructures show increased carrier migration rate and eliminated Fermi level pinning effect, contributing to their potential in devices and catalytic system.

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Ultra-thin solid electrolyte interphase evolution and wrinkling processes in molybdenum disulfide-based lithium-ion batteries

Cited by 81 publications

References 55 publications

Vertically Stacked 2H‐1T Dual‐Phase MoS₂ Microstructures during Lithium Intercalation: A First Principles Study

Vertically Stacked 2H‐1T Dual‐Phase MoS₂ Microstructures during Lithium Intercalation: A First Principles Study

Toward Critical Electrode/Electrolyte Interfaces in Rechargeable Batteries

Seamlessly Splicing Metallic Sn_xMo₁₋_xS₂ at MoS₂ Edge for Enhanced Photoelectrocatalytic Performance in Microreactor

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Ultra-thin solid electrolyte interphase evolution and wrinkling processes in molybdenum disulfide-based lithium-ion batteries

Cited by 81 publications

References 55 publications

Vertically Stacked 2H‐1T Dual‐Phase MoS2 Microstructures during Lithium Intercalation: A First Principles Study

Vertically Stacked 2H‐1T Dual‐Phase MoS2 Microstructures during Lithium Intercalation: A First Principles Study

Toward Critical Electrode/Electrolyte Interfaces in Rechargeable Batteries

Seamlessly Splicing Metallic SnxMo1−xS2 at MoS2 Edge for Enhanced Photoelectrocatalytic Performance in Microreactor

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Product

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Vertically Stacked 2H‐1T Dual‐Phase MoS₂ Microstructures during Lithium Intercalation: A First Principles Study

Vertically Stacked 2H‐1T Dual‐Phase MoS₂ Microstructures during Lithium Intercalation: A First Principles Study

Seamlessly Splicing Metallic Sn_xMo₁₋_xS₂ at MoS₂ Edge for Enhanced Photoelectrocatalytic Performance in Microreactor