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Rechargeable potassium-ion batteries with honeycomb-layered tellurates as high voltage cathodes and fast potassium-ion conductors

Author

Listed:
  • Titus Masese

    (National Institute of Advanced Industrial Science and Technology (AIST))

  • Kazuki Yoshii

    (National Institute of Advanced Industrial Science and Technology (AIST))

  • Yoichi Yamaguchi

    (National Institute of Advanced Industrial Science and Technology (AIST))

  • Toyoki Okumura

    (National Institute of Advanced Industrial Science and Technology (AIST))

  • Zhen-Dong Huang

    (Nanjing University of Posts and Telecommunications (NUPT))

  • Minami Kato

    (National Institute of Advanced Industrial Science and Technology (AIST))

  • Keigo Kubota

    (AIST-Kyoto University Chemical Energy Materials Open Innovation Laboratory (ChEM-OIL))

  • Junya Furutani

    (Ritsumeikan University)

  • Yuki Orikasa

    (Ritsumeikan University)

  • Hiroshi Senoh

    (National Institute of Advanced Industrial Science and Technology (AIST))

  • Hikari Sakaebe

    (National Institute of Advanced Industrial Science and Technology (AIST))

  • Masahiro Shikano

    (National Institute of Advanced Industrial Science and Technology (AIST))

Abstract

Rechargeable potassium-ion batteries have been gaining traction as not only promising low-cost alternatives to lithium-ion technology, but also as high-voltage energy storage systems. However, their development and sustainability are plagued by the lack of suitable electrode materials capable of allowing the reversible insertion of the large potassium ions. Here, exploration of the database for potassium-based materials has led us to discover potassium ion conducting layered honeycomb frameworks. They show the capability of reversible insertion of potassium ions at high voltages (~4 V for K2Ni2TeO6) in stable ionic liquids based on potassium bis(trifluorosulfonyl) imide, and exhibit remarkable ionic conductivities e.g. ~0.01 mS cm−1 at 298 K and ~40 mS cm–1 at 573 K for K2Mg2TeO6. In addition to enlisting fast potassium ion conductors that can be utilised as solid electrolytes, these layered honeycomb frameworks deliver the highest voltages amongst layered cathodes, becoming prime candidates for the advancement of high-energy density potassium-ion batteries.

Suggested Citation

  • Titus Masese & Kazuki Yoshii & Yoichi Yamaguchi & Toyoki Okumura & Zhen-Dong Huang & Minami Kato & Keigo Kubota & Junya Furutani & Yuki Orikasa & Hiroshi Senoh & Hikari Sakaebe & Masahiro Shikano, 2018. "Rechargeable potassium-ion batteries with honeycomb-layered tellurates as high voltage cathodes and fast potassium-ion conductors," Nature Communications, Nature, vol. 9(1), pages 1-12, December.
    • Handle: RePEc:nat:natcom:v:9:y:2018:i:1:d:10.1038_s41467-018-06343-6
    DOI: 10.1038/s41467-018-06343-6
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    Cited by:

    1. Shixin Wang & Yuan Guo & Xianfeng Du & Lilong Xiong & Zhongshuai Liang & Mingbo Ma & Yuehong Xie & Wenzhi You & Yi Meng & Yifan Liu & Mingxia Liu, 2024. "Preferred crystal plane electrodeposition of aluminum anode with high lattice-matching for long-life aluminum batteries," Nature Communications, Nature, vol. 15(1), pages 1-11, December.

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