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Preparation of cathode slurry for lithium‑ion battery by three‑roll mill process KCI 등재

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  • URLhttps://db.koreascholar.com/Article/Detail/420735
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Carbon Letters (Carbon letters)
한국탄소학회 (Korean Carbon Society)
초록

Lithium-ion battery (LiB) is one of the special issues on nowadays and diverse researches to develop LiB with better performances have been carried out so far, especially, regarding improved properties of each component such as cathode, anode, separator and electrolyte. However, there are limited information on ‘processing’ to prepare each component, and especially fabrication of cathode is strongly dependent on thinky mixer to realize homogeneous dispersion of active materials and conductors in binders. Herein, we report on preparation of LiNi0.8Co0.1Mn0.1O2 (NCM811) based cathode materials with different carbon conductors (CNT and carbon black) using homogenizer and three-roll milling method. These processes are turned out perfect alternative to prepare cathode electrode. LiB cells were assembled using the dispersed electrode slurry and the performance of a cell was electrochemically stable, even in the case of a CNT conductor, which is normally difficult to make perfect dispersion because of its strong Van der Waals attraction between the tubes and π–π interactions.

목차
    Abstract
        Graphic abstract
    1 Introduction
    2 Experimental
        2.1 Materials and instruments
        2.2 Preparation of conductor (carbons) and binder (PVDF) dispersion solution
        2.3 NCM811carbonPVDF cathode slurry
        2.4 Electrochemical measurements
    3 Results and discussion
    4 Conclusion
    Acknowledgements 
    References
저자
  • Gyori Park(Department of Chemical Engineering and Applied Chemistry, Chungnam National University)
  • Jun‑Seob Park(Department of Materials Science and Engineering, Chungnam National University)
  • Hyun‑Suk Kim(Department of Materials Science and Engineering, Chungnam National University)
  • Kyung Jin Lee(Department of Chemical Engineering and Applied Chemistry, Chungnam National University)