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A chemically self-charging aqueous zinc-ion battery

Author

Listed:
  • Yan Zhang

    (Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University)

  • Fang Wan

    (Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University)

  • Shuo Huang

    (Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University)

  • Shuai Wang

    (Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University)

  • Zhiqiang Niu

    (Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University)

  • Jun Chen

    (Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University)

Abstract

Self-charging power systems integrating energy harvesting technologies and batteries are attracting extensive attention in energy technologies. However, the conventional integrated systems are highly dependent on the availability of the energy sources and generally possess complicated configuration. Herein, we develop chemically self-charging aqueous zinc-ion batteries with a simplified two-electrode configuration based on CaV6O16·3H2O electrode. Such system possesses the capability of energy harvesting, conversion and storage simultaneously. It can be chemically self-recharged by the spontaneous redox reaction between the discharged cathode and oxygen from the ambient environment. Chemically self-recharged zinc-ion batteries display an initial open-circuit voltage of about 1.05 V and a considerable discharge capacity of about 239 mAh g−1, indicating the excellent self-rechargeability. Impressively, such chemically self-charging zinc-ion batteries can also work well at chemical or/and galvanostatic charging hybrid modes. This work not only provides a route to design chemically self-charging energy storage, but also broadens the horizons of aqueous zinc-ion batteries.

Suggested Citation

  • Yan Zhang & Fang Wan & Shuo Huang & Shuai Wang & Zhiqiang Niu & Jun Chen, 2020. "A chemically self-charging aqueous zinc-ion battery," Nature Communications, Nature, vol. 11(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-16039-5
    DOI: 10.1038/s41467-020-16039-5
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    Cited by:

    1. Zhiwei Li & Yinghong Xu & Langyuan Wu & Jiaxin Cui & Hui Dou & Xiaogang Zhang, 2023. "Enabling giant thermopower by heterostructure engineering of hydrated vanadium pentoxide for zinc ion thermal charging cells," Nature Communications, Nature, vol. 14(1), pages 1-11, December.

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