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A reversible dendrite-free high-areal-capacity lithium metal electrode

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  • Hui Wang

    (Faculty of Engineering, Mie University
    Present address: Energy and Environment Directorate, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, Washington 99354 USA)

  • Masaki Matsui

    (Faculty of Engineering, Mie University
    Kobe University
    Precursory Research for Embryonic Science and Technology (PRESTO), Japan Science and Technology Agency (JST))

  • Hiroko Kuwata

    (Faculty of Engineering, Mie University)

  • Hidetoshi Sonoki

    (Faculty of Engineering, Mie University)

  • Yasuaki Matsuda

    (Faculty of Engineering, Mie University)

  • Xuefu Shang

    (Faculty of Engineering, Mie University)

  • Yasuo Takeda

    (Faculty of Engineering, Mie University)

  • Osamu Yamamoto

    (Faculty of Engineering, Mie University)

  • Nobuyuki Imanishi

    (Faculty of Engineering, Mie University)

Abstract

Reversible dendrite-free low-areal-capacity lithium metal electrodes have recently been revived, because of their pivotal role in developing beyond lithium ion batteries. However, there have been no reports of reversible dendrite-free high-areal-capacity lithium metal electrodes. Here we report on a strategy to realize unprecedented stable cycling of lithium electrodeposition/stripping with a highly desirable areal-capacity (12 mAh cm−2) and exceptional Coulombic efficiency (>99.98%) at high current densities (>5 mA cm−2) and ambient temperature using a diluted solvate ionic liquid. The essence of this strategy, that can drastically improve lithium electrodeposition kinetics by cyclic voltammetry premodulation, lies in the tailoring of the top solid-electrolyte interphase layer in a diluted solvate ionic liquid to facilitate a two-dimensional growth mode. We anticipate that this discovery could pave the way for developing reversible dendrite-free metal anodes for sustainable battery chemistries.

Suggested Citation

  • Hui Wang & Masaki Matsui & Hiroko Kuwata & Hidetoshi Sonoki & Yasuaki Matsuda & Xuefu Shang & Yasuo Takeda & Osamu Yamamoto & Nobuyuki Imanishi, 2017. "A reversible dendrite-free high-areal-capacity lithium metal electrode," Nature Communications, Nature, vol. 8(1), pages 1-9, April.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_ncomms15106
    DOI: 10.1038/ncomms15106
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    Cited by:

    1. Minsung Baek & Jinyoung Kim & Kwanghoon Jeong & Seonmo Yang & Heejin Kim & Jimin Lee & Minkwan Kim & Ki Jae Kim & Jang Wook Choi, 2023. "Naked metallic skin for homo-epitaxial deposition in lithium metal batteries," Nature Communications, Nature, vol. 14(1), pages 1-11, December.

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