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Environmentally stable interface of layered oxide cathodes for sodium-ion batteries

Author

Listed:
  • Shaohua Guo

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

  • Qi Li

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

  • Pan Liu

    (Shanghai Jiao Tong University
    Tohoku University)

  • Mingwei Chen

    (Shanghai Jiao Tong University
    Tohoku University)

  • Haoshen Zhou

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

Abstract

Sodium-ion batteries are strategically pivotal to achieving large-scale energy storage. Layered oxides, especially manganese-based oxides, are the most popular cathodes due to their high reversible capacity and use of earth-abundant elements. However, less noticed is the fact that the interface of layered cathodes always suffers from atmospheric and electrochemical corrosion, leading to severely diminished electrochemical properties. Herein, we demonstrate an environmentally stable interface via the superficial concentration of titanium, which not only overcomes the above limitations, but also presents unique surface chemical/electrochemical properties. The results show that the atomic-scale interface is composed of spinel-like titanium (III) oxides, enhancing the structural/electrochemical stability and electronic/ionic conductivity. Consequently, the interface-engineered electrode shows excellent cycling performance among all layered manganese-based cathodes, as well as high-energy density. Our findings highlight the significance of a stable interface and, moreover, open opportunities for the design of well-tailored cathode materials for sodium storage.

Suggested Citation

  • Shaohua Guo & Qi Li & Pan Liu & Mingwei Chen & Haoshen Zhou, 2017. "Environmentally stable interface of layered oxide cathodes for sodium-ion batteries," Nature Communications, Nature, vol. 8(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:8:y:2017:i:1:d:10.1038_s41467-017-00157-8
    DOI: 10.1038/s41467-017-00157-8
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    Cited by:

    1. Wenhua Zuo & Jimin Qiu & Xiangsi Liu & Fucheng Ren & Haodong Liu & Huajin He & Chong Luo & Jialin Li & Gregorio F. Ortiz & Huanan Duan & Jinping Liu & Ming-Sheng Wang & Yangxing Li & Riqiang Fu & Yong, 2020. "The stability of P2-layered sodium transition metal oxides in ambient atmospheres," Nature Communications, Nature, vol. 11(1), pages 1-12, December.
    2. Qinhao Shi & Ruijuan Qi & Xiaochen Feng & Jing Wang & Yong Li & Zhenpeng Yao & Xuan Wang & Qianqian Li & Xionggang Lu & Jiujun Zhang & Yufeng Zhao, 2022. "Niobium-doped layered cathode material for high-power and low-temperature sodium-ion batteries," Nature Communications, Nature, vol. 13(1), pages 1-12, December.

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