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Fast kinetics of multivalent intercalation chemistry enabled by solvated magnesium-ions into self-established metallic layered materials

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  • Zhenyou Li

    (Helmholtz Institute Ulm (HIU)
    Karlsruhe Institute of Technology (KIT))

  • Xiaoke Mu

    (Karlsruhe Institute of Technology (KIT))

  • Zhirong Zhao-Karger

    (Helmholtz Institute Ulm (HIU)
    Karlsruhe Institute of Technology (KIT))

  • Thomas Diemant

    (Ulm University)

  • R. Jürgen Behm

    (Helmholtz Institute Ulm (HIU)
    Ulm University)

  • Christian Kübel

    (Helmholtz Institute Ulm (HIU)
    Karlsruhe Institute of Technology (KIT)
    Karlsruhe Institute of Technology (KIT))

  • Maximilian Fichtner

    (Helmholtz Institute Ulm (HIU)
    Karlsruhe Institute of Technology (KIT))

Abstract

Rechargeable magnesium batteries are one of the most promising candidates for next-generation battery technologies. Despite recent significant progress in the development of efficient electrolytes, an on-going challenge for realization of rechargeable magnesium batteries remains to overcome the sluggish kinetics caused by the strong interaction between double charged magnesium-ions and the intercalation host. Herein, we report that a magnesium battery chemistry with fast intercalation kinetics in the layered molybdenum disulfide structures can be enabled by using solvated magnesium-ions ([Mg(DME)x]2+). Our study demonstrates that the high charge density of magnesium-ion may be mitigated through dimethoxyethane solvation, which avoids the sluggish desolvation process at the cathode-electrolyte interfaces and reduces the trapping force of the cathode lattice to the cations, facilitating magnesium-ion diffusion. The concept of using solvation effect could be a general and effective route to tackle the sluggish intercalation kinetics of magnesium-ions, which can potentially be extended to other host structures.

Suggested Citation

  • Zhenyou Li & Xiaoke Mu & Zhirong Zhao-Karger & Thomas Diemant & R. Jürgen Behm & Christian Kübel & Maximilian Fichtner, 2018. "Fast kinetics of multivalent intercalation chemistry enabled by solvated magnesium-ions into self-established metallic layered materials," Nature Communications, Nature, vol. 9(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-07484-4
    DOI: 10.1038/s41467-018-07484-4
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    Cited by:

    1. Zhong, Fulan & Wang, Yijun & Li, Guilan & Huang, Chuyun & Xu, Anding & Lin, Changrong & Xu, Zhiguang & Yan, Yurong & Wu, Songping, 2021. "Beyond-carbon materials for potassium ion energy-storage devices," Renewable and Sustainable Energy Reviews, Elsevier, vol. 146(C).
    2. Ananyo Roy & Mohsen Sotoudeh & Sirshendu Dinda & Yushu Tang & Christian Kübel & Axel Groß & Zhirong Zhao-Karger & Maximilian Fichtner & Zhenyou Li, 2024. "Improving rechargeable magnesium batteries through dual cation co-intercalation strategy," Nature Communications, Nature, vol. 15(1), pages 1-16, December.

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