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Drying of Lithium‐Ion Battery Anodes for Use in High‐Energy Cells: Influence of Electrode Thickness on Drying Time, Adhesion, and Crack Formation
Author(s) -
Kumberg Jana,
Müller Marcus,
Diehm Ralf,
Spiegel Sandro,
Wachsmann Christian,
Bauer Werner,
Scharfer Philip,
Schabel Wilhelm
Publication year - 2019
Publication title -
energy technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.91
H-Index - 44
eISSN - 2194-4296
pISSN - 2194-4288
DOI - 10.1002/ente.201900722
Subject(s) - materials science , electrode , anode , adhesion , battery (electricity) , microstructure , composite material , cracking , lithium (medication) , lithium ion battery , energy storage , ion , chemistry , power (physics) , endocrinology , medicine , physics , organic chemistry , quantum mechanics
When fabricating battery electrodes, their properties are strongly determined by the adjusted drying parameters. This does not only affect their microstructure in terms of adhesion, but also influences cell performance. The reason is found to be the binder transported to the surface during drying. Herein, it is shown that when thicker electrodes are processed, new challenges arise. On the one hand, loss of adhesion associated with certain drying conditions becomes a more serious problem; on the other hand, cracking occurs at a certain drying rate and with increasing electrode thickness.