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

Gyori Park, Jun Seob Park, Hyun Suk Kim, Kyung Jin Lee

Research output: Contribution to journalArticlepeer-review

10 Scopus citations

Abstract

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. Graphic abstract: [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)265-272
Number of pages8
JournalCarbon Letters
Volume32
Issue number1
DOIs
StatePublished - Feb 2022

Keywords

  • Cathode slurry
  • CNT dispersion
  • Lithium ion battery
  • NCM811
  • PVDF
  • Three-roll mill

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