National Repository of Grey Literature 3 records found  Search took 0.02 seconds. 
Positive electrode for lůithium-ion batteries based on LiCoO2
Krištof, Petr ; Kazda, Tomáš (referee) ; Sedlaříková, Marie (advisor)
This diploma thesis deals with materials used by production ofcathodes of Lithium-ion batteries. Primary this thesis deals with LiCoO2material and its subsidizing of alkali metals. The first part deals with the charakteristic of Lithium-ion batteries, used materials, possibilities of doping and charging. The practical part concentrates on production of active substance of cathode and doping this substance by sodium and potassium. The methods of evaluation were used galvanostaticcycling and x-ray analysis (XRD).
Water scarcity in the world and in the Czechia
Krištof, Petr ; Janský, Bohumír (advisor) ; Matějček, Tomáš (referee)
I used mainly research and compilation methods in the theoretical part of the bachelor thesis. The water scarcity is very actual issue in the era of climate change. Unfortunately, in my opinion it doesn't get that much attention in public space. The first part of thesis summarizes the causes and consequences of water scarcity, there are examples of bad water usage including ways of solution. The goal is popularize the topic of drought and water scarcity and help to implement these attractive topics to the school curriculum. The chapter about water scarcity in the Czechia is mainly focused on drought and measures to eliminate it. We have to realize, that our water comfort is not eternal. Episodes of drought are occured more frequently also in central Europe now. The practical part of thesis contains one-day lesson programme about water scarcity and hydrometeorological extremes for 8th - 9th grade of primary school. Key words: climate change, water scarcity in the world, water consumption, consequences of water scarcity, water scarcity in the Czechia, drought, measures
Positive electrode for lůithium-ion batteries based on LiCoO2
Krištof, Petr ; Kazda, Tomáš (referee) ; Sedlaříková, Marie (advisor)
This diploma thesis deals with materials used by production ofcathodes of Lithium-ion batteries. Primary this thesis deals with LiCoO2material and its subsidizing of alkali metals. The first part deals with the charakteristic of Lithium-ion batteries, used materials, possibilities of doping and charging. The practical part concentrates on production of active substance of cathode and doping this substance by sodium and potassium. The methods of evaluation were used galvanostaticcycling and x-ray analysis (XRD).

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2 Krištof, Pavel
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