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Hierarchical porous silicon structures with extraordinary mechanical strength as high-performance lithium-ion battery anodes

Author

Listed:
  • Haiping Jia

    (Pacific Northwest National Laboratory)

  • Xiaolin Li

    (Pacific Northwest National Laboratory)

  • Junhua Song

    (Pacific Northwest National Laboratory)

  • Xin Zhang

    (Pacific Northwest National Laboratory)

  • Langli Luo

    (Pacific Northwest National Laboratory)

  • Yang He

    (Pacific Northwest National Laboratory)

  • Binsong Li

    (General Motors Research and Development Center)

  • Yun Cai

    (Pacific Northwest National Laboratory)

  • Shenyang Hu

    (Pacific Northwest National Laboratory)

  • Xingcheng Xiao

    (General Motors Research and Development Center)

  • Chongmin Wang

    (Pacific Northwest National Laboratory)

  • Kevin M. Rosso

    (Pacific Northwest National Laboratory)

  • Ran Yi

    (Pacific Northwest National Laboratory)

  • Rajankumar Patel

    (Pacific Northwest National Laboratory)

  • Ji-Guang Zhang

    (Pacific Northwest National Laboratory)

Abstract

Porous structured silicon has been regarded as a promising candidate to overcome pulverization of silicon-based anodes. However, poor mechanical strength of these porous particles has limited their volumetric energy density towards practical applications. Here we design and synthesize hierarchical carbon-nanotube@silicon@carbon microspheres with both high porosity and extraordinary mechanical strength (>200 MPa) and a low apparent particle expansion of ~40% upon full lithiation. The composite electrodes of carbon-nanotube@silicon@carbon-graphite with a practical loading (3 mAh cm−2) deliver ~750 mAh g−1 specific capacity, 92% capacity retention over 500 cycles. This work is a leap in silicon anode development and provides insights into the design of electrode materials for other batteries.

Suggested Citation

  • Haiping Jia & Xiaolin Li & Junhua Song & Xin Zhang & Langli Luo & Yang He & Binsong Li & Yun Cai & Shenyang Hu & Xingcheng Xiao & Chongmin Wang & Kevin M. Rosso & Ran Yi & Rajankumar Patel & Ji-Guang , 2020. "Hierarchical porous silicon structures with extraordinary mechanical strength as high-performance lithium-ion battery anodes," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-15217-9
    DOI: 10.1038/s41467-020-15217-9
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    Cited by:

    1. Hosam M. Saleh & Amal I. Hassan, 2023. "Synthesis and Characterization of Nanomaterials for Application in Cost-Effective Electrochemical Devices," Sustainability, MDPI, vol. 15(14), pages 1-52, July.
    2. Ji Hyeon Lee & Hyun Wook Jung & In Soo Kim & Min Park & Hyung-Seok Kim, 2021. "Electrochemical Evaluation of Surface Modified Free-Standing CNT Electrode for Li–O 2 Battery Cathode," Energies, MDPI, vol. 14(14), pages 1-11, July.

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