National Repository of Grey Literature 6 records found  Search took 0.01 seconds. 
Study of effect of organic additives on the zinc deposition in alkaline electrolytes using X-ray difraktometry
Smejkal, Jan ; Čech, Ondřej (referee) ; Chladil, Ladislav (advisor)
Bachelor thesis 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 at low, middle and high current densities. 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 mi-croscope Tescan Vega 3 XMU.
A structure study of high-voltage cathode materials for lithium ion battery using X-ray crystallography
Kunický, Daniel ; Čech, Ondřej (referee) ; Chladil, Ladislav (advisor)
This diploma thesis deals with the X-Ray crystallography study of structural changes within lithium-ion cells. First part consists of the theoretical discussion about the structural changes in commerce lithium-ion cells with focus on X-Ray crystallography. Then the ex situ, in situ and operando terms are discussed. Verification of the XRD usage is realized on the LiFePO4 material. Experimental part deals with the optimization and preparation of electrochemical cells and the measurements. Finally, results of the Rietveld analysis are discussed.
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.
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.
A structure study of high-voltage cathode materials for lithium ion battery using X-ray crystallography
Kunický, Daniel ; Čech, Ondřej (referee) ; Chladil, Ladislav (advisor)
This diploma thesis deals with the X-Ray crystallography study of structural changes within lithium-ion cells. First part consists of the theoretical discussion about the structural changes in commerce lithium-ion cells with focus on X-Ray crystallography. Then the ex situ, in situ and operando terms are discussed. Verification of the XRD usage is realized on the LiFePO4 material. Experimental part deals with the optimization and preparation of electrochemical cells and the measurements. Finally, results of the Rietveld analysis are discussed.
Study of effect of organic additives on the zinc deposition in alkaline electrolytes using X-ray difraktometry
Smejkal, Jan ; Čech, Ondřej (referee) ; Chladil, Ladislav (advisor)
Bachelor thesis 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 at low, middle and high current densities. 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 mi-croscope Tescan Vega 3 XMU.

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