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National Repository of Grey Literature 4 records found  Search took 0.00 seconds. 
Construction of portable charger for mobile phone
 Stejskal, Lukáš ; Cipín, Radoslav (referee) ; Vondruš, Jiří (advisor)
In this thesis suggest the involvement of appropriate driver for mobile phone travel charger. The work is a treatise on the available accumulators, which can be used as a source for the proposed power converter.
Detailed record
The influence of zinc ion on possitive elektrode of Ni-Zn accumulators
 Karásek, Stanislav ; Novák, Vítězslav (referee) ; Chladil, Ladislav (advisor)
This thesis deals with the establishment of zinc ions at the positive electrode of nickel-zinc batteries. The aim of the study was to measure the impedance characteristics of the positive electrode in various states of charge and observing the effect of ZnO on the changes of impedance spectra. The theoretical part is focused on nickel hydroxide as a construction material for positive electrode and its behavior during cycling in the electrolyte. The experimental part describes in detail the manufacture of the electrode system and the preparation of electrolytes with different degrees of saturation with zinc oxide. The cells were cycled and measured using impedance spectroscopy. The measured impedance curves were simulated with equivalent circuits for a better understanding of the ongoing processes.
Detailed record
The influence of zinc ion on possitive elektrode of Ni-Zn accumulators
 Karásek, Stanislav ; Novák, Vítězslav (referee) ; Chladil, Ladislav (advisor)
This thesis deals with the establishment of zinc ions at the positive electrode of nickel-zinc batteries. The aim of the study was to measure the impedance characteristics of the positive electrode in various states of charge and observing the effect of ZnO on the changes of impedance spectra. The theoretical part is focused on nickel hydroxide as a construction material for positive electrode and its behavior during cycling in the electrolyte. The experimental part describes in detail the manufacture of the electrode system and the preparation of electrolytes with different degrees of saturation with zinc oxide. The cells were cycled and measured using impedance spectroscopy. The measured impedance curves were simulated with equivalent circuits for a better understanding of the ongoing processes.
Detailed record
Construction of portable charger for mobile phone
 Stejskal, Lukáš ; Cipín, Radoslav (referee) ; Vondruš, Jiří (advisor)
In this thesis suggest the involvement of appropriate driver for mobile phone travel charger. The work is a treatise on the available accumulators, which can be used as a source for the proposed power converter.
Detailed record

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