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Use of X-ray diffraction analysis in the optimization of cathode material syntheses for Li-ion batteries
Kunz, Marek ; Čech, Ondřej (referee) ; Chladil, Ladislav (advisor)
This thesis deals with study of structural changes in electrode materials prepared by spray-dry synthesis at different calcination temperatures using X-ray diffraction analysis. In the theoretical part, the work deals with the principle of XRD, parameters that influence the resulting diffractogram and Rietveld analysis. The part further deals with possible syntheses of cathode materials, calcination, and possible ways of battery degradation. The experimental part focuses on investigating the ideal calcination temperature and time of prepared cathode material samples.
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Study Of Effect Of Organic Additives On The Morfology Of Zinc Deposit
Smejkal, Jan
Article studies effect of the selected organic additives on zinc deposit properties in relation to negative electrode for Ni-Zn battery. All additives were examined with emphasis on the study of dendritic and mossy structure growth suppression. Additives have been selected in order to their already known benefits for Ni-Zn cell and in order to their using in galvanic production. Additives were examined by XRD diffractometer Rigaku Miniflex 600 HR and electron microscope Tescan Vega 3 XMU.
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