Nanodiamonds suppress the growth of lithium dendrites

Xin-Bing Cheng, Meng-Qiang Zhao, Chi Chen, Amanda Pentecost, Kathleen Maleski, Tyler Mathis, Xue-Qiang Zhang, Qiang Zhang (), Jianjun Jiang and Yury Gogotsi ()
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Xin-Bing Cheng: Drexel University
Meng-Qiang Zhao: Drexel University
Chi Chen: Drexel University
Amanda Pentecost: Drexel University
Kathleen Maleski: Drexel University
Tyler Mathis: Drexel University
Xue-Qiang Zhang: Tsinghua University
Qiang Zhang: Tsinghua University
Jianjun Jiang: Huazhong University of Science and Technology
Yury Gogotsi: Drexel University
Authors registered in the RePEc Author Service: Qiang Zhang

Nature Communications, 2017, vol. 8, issue 1, 1-9

Abstract: Abstract Lithium metal has been regarded as the future anode material for high-energy-density rechargeable batteries due to its favorable combination of negative electrochemical potential and high theoretical capacity. However, uncontrolled lithium deposition during lithium plating/stripping results in low Coulombic efficiency and severe safety hazards. Herein, we report that nanodiamonds work as an electrolyte additive to co-deposit with lithium ions and produce dendrite-free lithium deposits. First-principles calculations indicate that lithium prefers to adsorb onto nanodiamond surfaces with a low diffusion energy barrier, leading to uniformly deposited lithium arrays. The uniform lithium deposition morphology renders enhanced electrochemical cycling performance. The nanodiamond-modified electrolyte can lead to a stable cycling of lithium | lithium symmetrical cells up to 150 and 200 h at 2.0 and 1.0 mA cm–2, respectively. The nanodiamond co-deposition can significantly alter the lithium plating behavior, affording a promising route to suppress lithium dendrite growth in lithium metal-based batteries.

Date: 2017
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DOI: 10.1038/s41467-017-00519-2

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