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Mesoporous silicon sponge as an anti-pulverization structure for high-performance lithium-ion battery anodes

Author

Listed:
  • Xiaolin Li

    (Energy and Environment Directorate, Pacific Northwest National Laboratory)

  • Meng Gu

    (Environmental and Molecular Sciences Laboratory, Pacific Northwest National Laboratory)

  • Shenyang Hu

    (Energy and Environment Directorate, Pacific Northwest National Laboratory)

  • Rhiannon Kennard

    (University of California, San Diego)

  • Pengfei Yan

    (Environmental and Molecular Sciences Laboratory, Pacific Northwest National Laboratory)

  • Xilin Chen

    (Energy and Environment Directorate, Pacific Northwest National Laboratory)

  • Chongmin Wang

    (Environmental and Molecular Sciences Laboratory, Pacific Northwest National Laboratory)

  • Michael J. Sailor

    (University of California, San Diego)

  • Ji-Guang Zhang

    (Energy and Environment Directorate, Pacific Northwest National Laboratory)

  • Jun Liu

    (Energy and Environment Directorate, Pacific Northwest National Laboratory)

Abstract

Nanostructured silicon is a promising anode material for high-performance lithium-ion batteries, yet scalable synthesis of such materials, and retaining good cycling stability in high loading electrode remain significant challenges. Here we combine in-situ transmission electron microscopy and continuum media mechanical calculations to demonstrate that large (>20 μm) mesoporous silicon sponge prepared by the anodization method can limit the particle volume expansion at full lithiation to ~30% and prevent pulverization in bulk silicon particles. The mesoporous silicon sponge can deliver a capacity of up to ~750 mAh g−1 based on the total electrode weight with >80% capacity retention over 1,000 cycles. The first cycle irreversible capacity loss of pre-lithiated electrode is

Suggested Citation

  • Xiaolin Li & Meng Gu & Shenyang Hu & Rhiannon Kennard & Pengfei Yan & Xilin Chen & Chongmin Wang & Michael J. Sailor & Ji-Guang Zhang & Jun Liu, 2014. "Mesoporous silicon sponge as an anti-pulverization structure for high-performance lithium-ion battery anodes," Nature Communications, Nature, vol. 5(1), pages 1-7, September.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5105
    DOI: 10.1038/ncomms5105
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