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

서지정보

ㆍ발행기관 : 한국탄소학회 ㆍ수록지정보 : Carbon letters / 32권 / 1호
ㆍ저자명 : Gyori Park, Jun‑Seob Park, Hyun‑Suk Kim, Kyung Jin Lee

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

영어 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.

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