SCI和EI收录∣中国化工学会会刊

Chinese Journal of Chemical Engineering ›› 2023, Vol. 60 ›› Issue (8): 80-89.DOI: 10.1016/j.cjche.2023.01.011

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The effects of amino groups and open metal sites of MOFs on polymer-based electrolytes for all-solid-state lithium metal batteries

Jiahao Lu1, Zhimeng Wang1, Qi Zhang1, Cheng Sun1, Yanyan Zhou1, Sijia Wang1, Xiangyun Qiu2, Shoudong Xu3, Rentian Chen1,4, Tao Wei1   

  1. 1. School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
    2. Power & Energy Storage System Research Center, College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China;
    3. College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, China;
    4. Institute of Mechanics and Energy, National Research Ogarev Mordovia State University, Saransk 430000, Russia
  • Received:2022-10-10 Revised:2022-12-22 Online:2023-10-28 Published:2023-08-28
  • Contact: Tao Wei,E-mail:wt863@just.edu.cn
  • Supported by:
    This work was financially supported by National Natural Science Foundation of China (21701083) and Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX20_3137).

The effects of amino groups and open metal sites of MOFs on polymer-based electrolytes for all-solid-state lithium metal batteries

Jiahao Lu1, Zhimeng Wang1, Qi Zhang1, Cheng Sun1, Yanyan Zhou1, Sijia Wang1, Xiangyun Qiu2, Shoudong Xu3, Rentian Chen1,4, Tao Wei1   

  1. 1. School of Energy and Power, Jiangsu University of Science and Technology, Zhenjiang 212003, China;
    2. Power & Energy Storage System Research Center, College of Mechanical and Electrical Engineering, Qingdao University, Qingdao 266071, China;
    3. College of Chemical Engineering and Technology, Taiyuan University of Technology, Taiyuan 030024, China;
    4. Institute of Mechanics and Energy, National Research Ogarev Mordovia State University, Saransk 430000, Russia
  • 通讯作者: Tao Wei,E-mail:wt863@just.edu.cn
  • 基金资助:
    This work was financially supported by National Natural Science Foundation of China (21701083) and Postgraduate Research & Practice Innovation Program of Jiangsu Province (KYCX20_3137).

Abstract: Metal-organic frameworks (MOFs) are becoming more and more popular as the fillers in polymer electrolytes in recent years. In this study, a series of MOFs (NH2-MIL-101(Fe), MIL-101(Fe), activated NH2-MIL-101(Fe) and activated MIL-101(Fe)) were synthesized and added to PEO-based solid composite electrolytes (SCEs). Furthermore, the role of the —NH2 groups and open metal sites (OMSs) were both examined. Different ratios of MOFs vs polymers were also studied by the electrochemical characterizations. At last, we successfully designed a novel solid composite electrolyte containing activated NH2-MIL-101(Fe), PEO, LiTFSI and PVDF for the high-performance all-solid-state lithium-metal batteries. This work might provide new insight to understand the interactions between polymers and functional groups or OMSs of MOFs better.

Key words: Solid composite electrolytes, NH2-MIL-101(Fe), All solid-state lithium metal batteries, Metal-organic frameworks (MOFs), Open metal sites (OMSs)

摘要: Metal-organic frameworks (MOFs) are becoming more and more popular as the fillers in polymer electrolytes in recent years. In this study, a series of MOFs (NH2-MIL-101(Fe), MIL-101(Fe), activated NH2-MIL-101(Fe) and activated MIL-101(Fe)) were synthesized and added to PEO-based solid composite electrolytes (SCEs). Furthermore, the role of the —NH2 groups and open metal sites (OMSs) were both examined. Different ratios of MOFs vs polymers were also studied by the electrochemical characterizations. At last, we successfully designed a novel solid composite electrolyte containing activated NH2-MIL-101(Fe), PEO, LiTFSI and PVDF for the high-performance all-solid-state lithium-metal batteries. This work might provide new insight to understand the interactions between polymers and functional groups or OMSs of MOFs better.

关键词: Solid composite electrolytes, NH2-MIL-101(Fe), All solid-state lithium metal batteries, Metal-organic frameworks (MOFs), Open metal sites (OMSs)