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High areal capacity battery electrodes enabled by segregated nanotube networks

Author

Listed:
  • Sang-Hoon Park

    (CRANN and AMBER research centers, Trinity College Dublin
    School of Chemistry, Trinity College Dublin)

  • Paul J. King

    (CRANN and AMBER research centers, Trinity College Dublin
    Efficient Energy Transfer Department, Nokia Bell Labs)

  • Ruiyuan Tian

    (CRANN and AMBER research centers, Trinity College Dublin
    School of Physics, Trinity College Dublin)

  • Conor S. Boland

    (CRANN and AMBER research centers, Trinity College Dublin
    School of Physics, Trinity College Dublin)

  • João Coelho

    (CRANN and AMBER research centers, Trinity College Dublin
    School of Chemistry, Trinity College Dublin)

  • Chuanfang (John) Zhang

    (CRANN and AMBER research centers, Trinity College Dublin
    School of Chemistry, Trinity College Dublin)

  • Patrick McBean

    (School of Physics, Trinity College Dublin)

  • Niall McEvoy

    (CRANN and AMBER research centers, Trinity College Dublin
    School of Chemistry, Trinity College Dublin)

  • Matthias P. Kremer

    (CRANN and AMBER research centers, Trinity College Dublin
    School of Chemistry, Trinity College Dublin)

  • Dermot Daly

    (CRANN and AMBER research centers, Trinity College Dublin
    School of Chemistry, Trinity College Dublin)

  • Jonathan N. Coleman

    (CRANN and AMBER research centers, Trinity College Dublin
    School of Physics, Trinity College Dublin)

  • Valeria Nicolosi

    (CRANN and AMBER research centers, Trinity College Dublin
    School of Chemistry, Trinity College Dublin)

Abstract

Increasing the energy storage capability of lithium-ion batteries necessitates maximization of their areal capacity. This requires thick electrodes performing at near-theoretical specific capacity. However, achievable electrode thicknesses are restricted by mechanical instabilities, with high-thickness performance limited by the attainable electrode conductivity. Here we show that forming a segregated network composite of carbon nanotubes with a range of lithium storage materials (for example, silicon, graphite and metal oxide particles) suppresses mechanical instabilities by toughening the composite, allowing the fabrication of high-performance electrodes with thicknesses of up to 800 μm. Such composite electrodes display conductivities up to 1 × 104 S m−1 and low charge-transfer resistances, allowing fast charge-delivery and enabling near-theoretical specific capacities, even for thick electrodes. The combination of high thickness and specific capacity leads to areal capacities of up to 45 and 30 mAh cm−2 for anodes and cathodes, respectively. Combining optimized composite anodes and cathodes yields full cells with state-of-the-art areal capacities (29 mAh cm−2) and specific/volumetric energies (480 Wh kg−1 and 1,600 Wh l−1).

Suggested Citation

  • Sang-Hoon Park & Paul J. King & Ruiyuan Tian & Conor S. Boland & João Coelho & Chuanfang (John) Zhang & Patrick McBean & Niall McEvoy & Matthias P. Kremer & Dermot Daly & Jonathan N. Coleman & Valeria, 2019. "High areal capacity battery electrodes enabled by segregated nanotube networks," Nature Energy, Nature, vol. 4(7), pages 560-567, July.
  • Handle: RePEc:nat:natene:v:4:y:2019:i:7:d:10.1038_s41560-019-0398-y
    DOI: 10.1038/s41560-019-0398-y
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    Citations

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    Cited by:

    1. Jung-Hui Kim & Ju-Myung Kim & Seok-Kyu Cho & Nag-Young Kim & Sang-Young Lee, 2022. "Redox-homogeneous, gel electrolyte-embedded high-mass-loading cathodes for high-energy lithium metal batteries," Nature Communications, Nature, vol. 13(1), pages 1-11, December.
    2. Jung-Hui Kim & Kyung Min Lee & Ji Won Kim & Seong Hyeon Kweon & Hyun-Seok Moon & Taeeun Yim & Sang Kyu Kwak & Sang-Young Lee, 2023. "Regulating electrostatic phenomena by cationic polymer binder for scalable high-areal-capacity Li battery electrodes," Nature Communications, Nature, vol. 14(1), pages 1-13, December.
    3. Manuela Meloni & Matthew J. Large & José Miguel González Domínguez & Sandra Victor-Román & Giuseppe Fratta & Emin Istif & Oliver Tomes & Jonathan P. Salvage & Christopher P. Ewels & Mario Pelaez-Ferna, 2022. "Explosive percolation yields highly-conductive polymer nanocomposites," Nature Communications, Nature, vol. 13(1), pages 1-9, December.
    4. Zhao, Jingyuan & Feng, Xuning & Wang, Junbin & Lian, Yubo & Ouyang, Minggao & Burke, Andrew F., 2023. "Battery fault diagnosis and failure prognosis for electric vehicles using spatio-temporal transformer networks," Applied Energy, Elsevier, vol. 352(C).
    5. Qing Zhao & Yue Deng & Nyalaliska W. Utomo & Jingxu Zheng & Prayag Biswal & Jiefu Yin & Lynden A. Archer, 2021. "On the crystallography and reversibility of lithium electrodeposits at ultrahigh capacity," Nature Communications, Nature, vol. 12(1), pages 1-10, December.

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