We analyzed the rheological and morphological characteristics of a multicomponent slurry system consisting of an active material, conductive additive, and binder. The effect of storage time and agitation on the rheological properties was investigated. In particular, we concentrated on the yield stress and power law index to demonstrate the change in the internal structure of slurries. The results show that the internal structure degrades with time and is deteriorated by mechanical agitation. To verify the internal structure, the slurry samples were freeze-dried, and field-emission scanning electron microscopy and energy-dispersive spectroscopy analyses were carried out. The morphological observations were in accordance with the rheological results obtained by simple shear, thixotropic, and viscoelastic experiments.
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This work was supported by the research fund of Dankook University in 2013.
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Kwon, Y.I., Kim, J.D. & Song, Y.S. Agitation Effect on the Rheological Behavior of Lithium-Ion Battery Slurries. J. Electron. Mater. 44, 475–481 (2015). https://doi.org/10.1007/s11664-014-3349-1
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DOI: https://doi.org/10.1007/s11664-014-3349-1