Abstract
Electrostatic spray deposition (ESD) technique was used to fabricate thin LiCoO2 layers on a metal substrate. A unique, highly porous structure with a narrow pore-size distribution around 1 μm was obtained at 230 °C using acetates as precursors and a mixture of ethanol (15 vol %) and butyl carbitol (85 vol %) as solvent. The pores were three-dimensionally interconnected. This structure was thermally stable at temperatures up to 600 °C. At small flow rates of the precursor solution, a nearly linear relation was found between pore size and flow rate. At deposition temperatures above 230 °C the porous structure disappeared. A possible formation mechanism for the porous structure has been proposed.
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Chen, C.H., Kelder, E.M. & Schoonman, J. Unique porous LiCoO2 thin layers prepared by electrostatic spray deposition. J Mater Sci 31, 5437–5442 (1996). https://doi.org/10.1007/BF01159314
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DOI: https://doi.org/10.1007/BF01159314