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Electrochemically tunable thermal conductivity of lithium cobalt oxide

Author

Listed:
  • Jiung Cho

    (Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign)

  • Mark D. Losego

    (North Carolina State University)

  • Hui Gang Zhang

    (Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign)

  • Honggyu Kim

    (Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign)

  • Jianmin Zuo

    (Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign)

  • Ivan Petrov

    (Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign)

  • David G. Cahill

    (Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign
    International Institute for Carbon Neutral Energy Research (WPI-I2CNER), Kyushu University)

  • Paul V. Braun

    (Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign)

Abstract

Using time-domain thermoreflectance, the thermal conductivity and elastic properties of a sputter deposited LiCoO2 film, a common lithium-ion cathode material, are measured as a function of the degree of lithiation. Here we report that via in situ measurements during cycling, the thermal conductivity of a LiCoO2 cathode reversibly decreases from ~5.4 to 3.7 W m−1 K−1, and its elastic modulus decreases from 325 to 225 GPa, as it is delithiated from Li1.0CoO2 to Li0.6CoO2. The dependence of the thermal conductivity on lithiation appears correlated with the lithiation-dependent phase behaviour. The oxidation-state-dependent thermal conductivity of electrolytically active transition metal oxides provides opportunities for dynamic control of thermal conductivity and is important to understand for thermal management in electrochemical energy storage devices.

Suggested Citation

  • Jiung Cho & Mark D. Losego & Hui Gang Zhang & Honggyu Kim & Jianmin Zuo & Ivan Petrov & David G. Cahill & Paul V. Braun, 2014. "Electrochemically tunable thermal conductivity of lithium cobalt oxide," Nature Communications, Nature, vol. 5(1), pages 1-6, September.
    • Handle: RePEc:nat:natcom:v:5:y:2014:i:1:d:10.1038_ncomms5035
    DOI: 10.1038/ncomms5035
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    Cited by:

    1. Sebastian Scheld, Walter & Charlotte Hoff, Linda & Vedder, Christian & Stollenwerk, Jochen & Grüner, Daniel & Rosen, Melanie & Lobe, Sandra & Ihrig, Martin & Seok, Ah–Ram & Finsterbusch, Martin & Uhle, 2023. "Enabling metal substrates for garnet-based composite cathodes by laser sintering," Applied Energy, Elsevier, vol. 345(C).
    2. Yingying Zhang & William M. Postiglione & Rui Xie & Chi Zhang & Hao Zhou & Vipul Chaturvedi & Kei Heltemes & Hua Zhou & Tianli Feng & Chris Leighton & Xiaojia Wang, 2023. "Wide-range continuous tuning of the thermal conductivity of La0.5Sr0.5CoO3-δ films via room-temperature ion-gel gating," Nature Communications, Nature, vol. 14(1), pages 1-9, December.
    3. Kiumars Aryana & John A. Tomko & Ran Gao & Eric R. Hoglund & Takanori Mimura & Sara Makarem & Alejandro Salanova & Md Shafkat Bin Hoque & Thomas W. Pfeifer & David H. Olson & Jeffrey L. Braun & Joyeet, 2022. "Observation of solid-state bidirectional thermal conductivity switching in antiferroelectric lead zirconate (PbZrO3)," Nature Communications, Nature, vol. 13(1), pages 1-9, December.

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