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Mechanical rolling formation of interpenetrated lithium metal/lithium tin alloy foil for ultrahigh-rate battery anode

Author

Listed:
  • Mintao Wan

    (Huazhong University of Science and Technology (HUST))

  • Sujin Kang

    (Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil)

  • Li Wang

    (Tsinghua University)

  • Hyun-Wook Lee

    (Ulsan National Institute of Science and Technology (UNIST), 50 UNIST-gil)

  • Guangyuan Wesley Zheng

    (Institute of Materials Research and Engineering, A*STAR, 2 Fusionopolis Way, Innovis
    National University of Singapore)

  • Yi Cui

    (Stanford University
    SLAC National Accelerator Laboratory)

  • Yongming Sun

    (Huazhong University of Science and Technology (HUST))

Abstract

To achieve good rate capability of lithium metal anodes for high-energy-density batteries, one fundamental challenge is the slow lithium diffusion at the interface. Here we report an interpenetrated, three-dimensional lithium metal/lithium tin alloy nanocomposite foil realized by a simple calendering and folding process of lithium and tin foils, and spontaneous alloying reactions. The strong affinity between the metallic lithium and lithium tin alloy as mixed electronic and ionic conducting networks, and their abundant interfaces enable ultrafast charger diffusion across the entire electrode. We demonstrate that a lithium/lithium tin alloy foil electrode sustains stable lithium stripping/plating under 30 mA cm−2 and 5 mAh cm−2 with a very low overpotential of 20 mV for 200 cycles in a commercial carbonate electrolyte. Cycled under 6 C (6.6 mA cm−2), a 1.0 mAh cm−2 LiNi0.6Co0.2Mn0.2O2 electrode maintains a substantial 74% of its capacity by pairing with such anode.

Suggested Citation

  • Mintao Wan & Sujin Kang & Li Wang & Hyun-Wook Lee & Guangyuan Wesley Zheng & Yi Cui & Yongming Sun, 2020. "Mechanical rolling formation of interpenetrated lithium metal/lithium tin alloy foil for ultrahigh-rate battery anode," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-14550-3
    DOI: 10.1038/s41467-020-14550-3
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    Cited by:

    1. Lingchen Kong & Yu Li & Cong Peng & Ziyue Zhao & Junwei Xiao & Yimin Zhao & Wei Feng, 2025. "Achieving burst Li+ channels via quasi-two-dimensional fluorinated metal-organic framework modulating functionalized interface," Nature Communications, Nature, vol. 16(1), pages 1-15, December.

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