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Continuous Anode Slurry Production in Twin-Screw Extruders: Effects of the Process Setup on the Dispersion

Meza Gonzalez, Juan Fernando 1; Nirschl, Hermann 1; Rhein, Frank ORCID iD icon 2
1 Karlsruher Institut für Technologie (KIT)
2 Institut für Mechanische Verfahrenstechnik und Mechanik (MVM), Karlsruher Institut für Technologie (KIT)

Abstract:

Screw design in the extrusion process has an important effect on the distribution of material through the extruder, resulting in partially filled sections in the processing zone. Accordingly, the local accumulation of material in the extruder leads to variations in material strain conditions and also influences the local residence time of the material in a given screw section. This work evaluates particle dispersion in anode slurry considering three different screw arrangements. The particle size distribution is considered as a quality parameter representing the microstructure of the battery slurry components and their distribution. Numerical simulation of the material flow behavior through a laboratory extruder was performed to investigate the filling ratios and resulting shear rates for different screw designs and process conditions. The importance of process parameters and a suitable screw configuration to achieve specific particle sizes in battery slurry is discussed.


Verlagsausgabe §
DOI: 10.5445/IR/1000171490
Veröffentlicht am 11.06.2024
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Mechanische Verfahrenstechnik und Mechanik (MVM)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2024
Sprache Englisch
Identifikator ISSN: 2313-0105
KITopen-ID: 1000171490
Erschienen in Batteries
Verlag MDPI
Band 10
Heft 5
Seiten Art.-Nr.: 145
Bemerkung zur Veröffentlichung Gefördert durch den KIT-Publikationsfonds
Vorab online veröffentlicht am 24.04.2024
Schlagwörter Li-ion battery; anode slurry; continuous mixing; twin-screw extruder; process simulation; smoothed-particle hydrodynamics (SPH)
Nachgewiesen in Web of Science
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Scopus
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