中国物理B ›› 2018, Vol. 27 ›› Issue (7): 78201-078201.doi: 10.1088/1674-1056/27/7/078201

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

A high-performance rechargeable Li-O2 battery with quasi-solid-state electrolyte

Jia-Yue Peng(彭佳悦), Jie Huang(黄杰), Wen-Jun Li(李文俊), Yi Wang(王怡), Xiqian Yu(禹习谦), Yongsheng Hu(胡勇胜), Liquan Chen(陈立泉), Hong Li(李泓)   

  1. 1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China;
    2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Beijing WeLion New Energy Technology Co., LTD, Beijing 102402, China;
    4 Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
  • 收稿日期:2018-04-01 修回日期:2018-05-04 出版日期:2018-07-05 发布日期:2018-07-05
  • 通讯作者: Xiqian Yu, Hong Li E-mail:xyu@iphy.ac.cn;hli@iphy.ac.cn
  • 基金资助:

    Project supported by the National Key R&D Program of China (Grant Nos. 2016YFB0100300 and 2016YFB0100100), the National Basic Research Program of China (Grant No. 2014CB932300), the Beijing Municipal Science & Technology Commission, China (Grant No. D171100005517001), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA09010000), and the National Natural Science Foundation of China (Grant No. 51502334).

A high-performance rechargeable Li-O2 battery with quasi-solid-state electrolyte

Jia-Yue Peng(彭佳悦)1,2, Jie Huang(黄杰)3, Wen-Jun Li(李文俊)4, Yi Wang(王怡)1,2, Xiqian Yu(禹习谦)1, Yongsheng Hu(胡勇胜)1, Liquan Chen(陈立泉)1, Hong Li(李泓)1,2   

  1. 1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China;
    2 School of Physical Sciences, University of Chinese Academy of Sciences, Beijing 100049, China;
    3 Beijing WeLion New Energy Technology Co., LTD, Beijing 102402, China;
    4 Beijing Key Laboratory of Green Reaction Engineering and Technology, Department of Chemical Engineering, Tsinghua University, Beijing 100084, China
  • Received:2018-04-01 Revised:2018-05-04 Online:2018-07-05 Published:2018-07-05
  • Contact: Xiqian Yu, Hong Li E-mail:xyu@iphy.ac.cn;hli@iphy.ac.cn
  • Supported by:

    Project supported by the National Key R&D Program of China (Grant Nos. 2016YFB0100300 and 2016YFB0100100), the National Basic Research Program of China (Grant No. 2014CB932300), the Beijing Municipal Science & Technology Commission, China (Grant No. D171100005517001), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA09010000), and the National Natural Science Foundation of China (Grant No. 51502334).

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摘要：

A novel transparent and soft quasi-solid-state electrolyte (QSSE) was proposed and fabricated, which consists of ionic liquid (PYR14TFSI) and nano-fumed silica. The QSSE demonstrates high ionic conductivity of 4.6×10-4 S/cm at room temperature and wide electrochemical stability window of over 5 V. The Li-O2 battery using such quasi-solid-state electrolyte exhibits a low charge-discharge overpotential at the first cycle and excellent long-term cyclability over 500 cycles.

关键词: quasi-solid-state electrolyte, Li-O2 battery

Abstract:

A novel transparent and soft quasi-solid-state electrolyte (QSSE) was proposed and fabricated, which consists of ionic liquid (PYR14TFSI) and nano-fumed silica. The QSSE demonstrates high ionic conductivity of 4.6×10-4 S/cm at room temperature and wide electrochemical stability window of over 5 V. The Li-O2 battery using such quasi-solid-state electrolyte exhibits a low charge-discharge overpotential at the first cycle and excellent long-term cyclability over 500 cycles.

Key words: quasi-solid-state electrolyte, Li-O2 battery

中图分类号:  (Lithium-ion batteries)

  • 82.47.Aa
82.45.Gj (Electrolytes) 78.55.Kz (Solid organic materials)