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A rechargeable calcium–oxygen battery that operates at room temperature

Author

Listed:
  • Lei Ye

    (Fudan University)

  • Meng Liao

    (Fudan University)

  • Kun Zhang

    (Fudan University)

  • Mengting Zheng

    (Zhejiang University)

  • Yi Jiang

    (Fudan University)

  • Xiangran Cheng

    (Fudan University)

  • Chuang Wang

    (Fudan University)

  • Qiuchen Xu

    (Shanghai Jiao Tong University)

  • Chengqiang Tang

    (Fudan University)

  • Pengzhou Li

    (Fudan University)

  • Yunzhou Wen

    (Fudan University)

  • Yifei Xu

    (Fudan University)

  • Xuemei Sun

    (Fudan University)

  • Peining Chen

    (Fudan University)

  • Hao Sun

    (Shanghai Jiao Tong University)

  • Yue Gao

    (Fudan University)

  • Ye Zhang

    (Fudan University)

  • Bingjie Wang

    (Fudan University)

  • Jun Lu

    (Zhejiang University)

  • Haoshen Zhou

    (Nanjing University)

  • Yonggang Wang

    (Fudan University)

  • Yongyao Xia

    (Fudan University)

  • Xin Xu

    (Fudan University)

  • Huisheng Peng

    (Fudan University)

Abstract

Calcium–oxygen (Ca–O2) batteries can theoretically afford high capacity by the reduction of O2 to calcium oxide compounds (CaOx) at low cost1–5. Yet, a rechargeable Ca–O2 battery that operates at room temperature has not been achieved because the CaOx/O2 chemistry typically involves inert discharge products and few electrolytes can accommodate both a highly reductive Ca metal anode and O2. Here we report a Ca–O2 battery that is rechargeable for 700 cycles at room temperature. Our battery relies on a highly reversible two-electron redox to form chemically reactive calcium peroxide (CaO2) as the discharge product. Using a durable ionic liquid-based electrolyte, this two-electron reaction is enabled by the facilitated Ca plating–stripping in the Ca metal anode at room temperature and improved CaO2/O2 redox in the air cathode. We show the proposed Ca–O2 battery is stable in air and can be made into flexible fibres that are weaved into textile batteries for next-generation wearable systems.

Suggested Citation

  • Lei Ye & Meng Liao & Kun Zhang & Mengting Zheng & Yi Jiang & Xiangran Cheng & Chuang Wang & Qiuchen Xu & Chengqiang Tang & Pengzhou Li & Yunzhou Wen & Yifei Xu & Xuemei Sun & Peining Chen & Hao Sun & , 2024. "A rechargeable calcium–oxygen battery that operates at room temperature," Nature, Nature, vol. 626(7998), pages 313-318, February.
    • Handle: RePEc:nat:nature:v:626:y:2024:i:7998:d:10.1038_s41586-023-06949-x
    DOI: 10.1038/s41586-023-06949-x
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    Cited by:

    1. Xiongwei Zhong & Xiao Xiao & Qizhen Li & Mengtian Zhang & Zhitong Li & Leyi Gao & Biao Chen & Zhiyang Zheng & Qingjin Fu & Xingzhu Wang & Guangmin Zhou & Baomin Xu, 2024. "Understanding the active site in chameleon-like bifunctional catalyst for practical rechargeable zinc-air batteries," Nature Communications, Nature, vol. 15(1), pages 1-17, December.
    2. Lili Zhang & Ning Zhang & Huishan Shang & Zhiyi Sun & Zihao Wei & Jingtao Wang & Yuanting Lei & Xiaochen Wang & Dan Wang & Yafei Zhao & Zhongti Sun & Fang Zhang & Xu Xiang & Bing Zhang & Wenxing Chen, 2024. "High-density asymmetric iron dual-atom sites for efficient and stable electrochemical water oxidation," Nature Communications, Nature, vol. 15(1), pages 1-13, December.

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