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Reduced Drying Time of Anodes for Lithium-Ion Batteries through Simultaneous Multilayer Coating

Kumberg, Jana 1; Bauer, Werner ORCID iD icon 2; Schmatz, Joyce; Diehm, Ralf 1; Tönsmann, Max 1; Müller, Marcus 2; Ly, Kevin 1; Scharfer, Philip 1; Schabel, Wilhelm 1
1 Lichttechnisches Institut (LTI), Karlsruher Institut für Technologie (KIT)
2 Institut für Angewandte Materialien – Energiespeichersysteme (IAM-ESS), Karlsruher Institut für Technologie (KIT)


The extended process chain starting from slurry mixing up to the operative lithium-ion battery requires a deep understanding of each individual process step and knowledge of the interaction of the different process steps with each other. In particular, the intertwining of slurry mixing and drying determines the microstructure of the electrode, which in turn affects the performance of the cell. Herein, a scalable multilayer approach is used to tailor electrodes with improved mechanical and electrochemical properties, which disclose their advantages especially at high drying rates. Cryogenic broad ion beam scanning electron microscopy (Cryo-BIB-SEM) micrographs are used to reveal the influences of different process parameters, like slurry formulation, mixing device, and properties of the active material on the intrinsic network between active particles and binders in graphite-based anode slurries. By a chosen combination of these slurries in a multilayer electrode, a tenfold acceleration of the drying time with favorable mechanical and electrochemical properties for full cells derived from these anodes is demonstrated.

Verlagsausgabe §
DOI: 10.5445/IR/1000137047
Veröffentlicht am 12.09.2021
DOI: 10.1002/ente.202100367
Zitationen: 4
Web of Science
Zitationen: 3
Zitationen: 5
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Energiespeichersysteme (IAM-ESS)
Lichttechnisches Institut (LTI)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2021
Sprache Englisch
Identifikator ISSN: 2194-4288, 2194-4296
KITopen-ID: 1000137047
HGF-Programm 43.31.02 (POF IV, LK 01) Devices and Applications
Erschienen in Energy Technology
Verlag Wiley-VCH Verlag
Band 9
Heft 10
Seiten Art.-Nr.: 2100367
Nachgewiesen in Scopus
Web of Science
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