National Repository of Grey Literature 39 records found  1 - 10nextend  jump to record: Search took 0.01 seconds. 
Carbon materials for power sources
Tichý, Jiří ; Bača, Petr (referee) ; Novák, Vítězslav (advisor)
This work deals with carbon materials and using them in electrochemical energy sources. Object of this work was to prepare carbon materials and investigate their electrical properties. The theoretical part objects of the carbon materials, their properties, application in electrochemical energy sources and measurement methods used in experimental part. Experimental part describes the preparation of the electrodes with various carbon materials and summarizes the results of measurements.
Study of the properties of the advanced cathode materials for lithium-ion cells
Tichý, Jiří ; Vondrák, Jiří (referee) ; Baumgartnerová, Alena (referee) ; Kazda, Tomáš (advisor)
Tato práce se zabývá studiem akumulátorů, zejména lithium-iontových, principy jejich funkce a zejména studiem katodových materiálů pro lithium-iontové akumulátory. Tyto materiály by měly umožnit vývoj akumulátorů se značně vyšším jmenovitým napětím. Cílem práce je seznámení se s problematikou a shrnutí dosavadního vývoje na poli vysokonapěťových lithiových akumulátorů.
Structural design of an experimental air preheater
Tichý, Jiří ; Skryja, Pavel (referee) ; Jegla, Zdeněk (advisor)
The thesis is focused on structural design of unconventional experimental combustion air preheater into drawing documentation needed for production and realization. Strength and expansion control of exposed elements of construction is also included in the thesis. The final design is obtained by gradual specification of pre-designed and strength and expansion controlled elements of construction. The work also includes discussion of structural properties of the final design.
Study of the properties of the advanced materials for the cathodes of the lithium-ion accumulators
Pustowka, Pavel ; Tichý, Jiří (referee) ; Kazda, Tomáš (advisor)
This thesis in its first part deals especially with characteristic of lithium ion accumulators in terms of their structure, electrochemical properties and also features of the most commonly used cathode materials. Especial attention is given to the high-voltage cathode material LiNi0,5Mn1,5O4 which cell voltage is close to 5V. The second practical part deals with the preparation of cathode materials based on LiNi0,5Mn1,5O4 with different temperatures in the second stage of annealing and analyzing them in terms of structure and electrochemical properties using appropriate measuring methods.
Worm conveyor
Tichý, Jiří ; Pokorný, Přemysl (referee) ; Kašpárek, Jaroslav (advisor)
This bachelor contains of a proposal and design of a sloping hydrated lime worm conveyor. The project is composed of technical specifications and drawing documentation. the technical specifications deal eith calculating the main parameters of worms conveyor, drive desin, storage of spiral worm and strength calculation of spiral worm shft. Drawing documentation is worked into the AutoCAD Mechanical program and consist of drawing assembly with individual details of the spiral worm shaft, manufacturing drawings nad welding assembly of the spiral worm.
The design of 3D printer control electronics
Grossmann, David ; Tichý, Jiří (referee) ; Vyroubal, Petr (advisor)
This bachelor thesis is interested in solution of electronics for RepRap 3D printer. Technology of 3D print and materials are described in teoretical part of this thesis. Main part is devoted for design of control electronics, design of full graphic LCD display and setting of software.
Možnosti recyklace Li-Ion akumulátorů
Skala, Kateřina ; Tichý, Jiří (referee) ; Kazda, Tomáš (advisor)
This diploma thesis is concerned with topic of lithium-ion batteries recycling. In this document the particular methods containing commercial used recycling processes or only laboratory used processes are discussed. Because rising amount of spent Li-ion accumulators is necessary find proper methods to recycle this type of accumulators. Also legislation question of this issue is important. In practical part is described procedure and results performed recycling method.
Batteries for medical applications
Pagáčová, Lenka ; Tichý, Jiří (referee) ; Kazda, Tomáš (advisor)
This master’s thesis deals with the influence of different carbon materials on the properties of Li-S accumulators. The theoretical part of the thesis describes primary and secondary electrochemical sources with a focus on medical applications. The second chapter deals individually with a lithium article. The main part of the thesis is the practical production of electrodes for Li-S accumulators using different types of carbon materials. The effects of these materials on the properties of accumulators are investigated to determine the most appropriate in terms of capacity and stability.
Multi-body system of structures with electro-mechanical resonators
Tichý, Jiří ; Lošák, Petr (referee) ; Hadaš, Zdeněk (advisor)
This thesis is dealing with creation of computation model of energy harvestors. Harvestors based on translational motion and planar motion were modeled. These models were created in MSC Adams. Proposed harvestors are tranforming mechanical vibrations into electrical energy by electromagnetical induction. To achieve better electrical output, harvestors were tuned to natural frequency suitable for chosen aplication. First proposed harvestor is meant for railway track. For validation of its usability in intended application, model of railway track section is also proposed. Force generated by passing train is used for excitation of the track model. Second harvestor is nonlinear electromechanical oscilator proposed for use on unanchored sea buoy (drifter). After retuning previously proposed concept of energy harvestor to natural frequency 1.6 Hz, computation model for simulation purposes was created. After the simulation of sinusoidal excitation, the excitation based on real sea data was simulated. When excited by regular sea, the peak electric power 9 W was achieved. When excited by irregular sea the peak electrical power of the generator was 7.5 mW.
System design vertical drive elevator, including the possibility of control for the storage system LLH
Tichý, Jiří ; Dlesk, Daniel (referee) ; Škopán, Miroslav (advisor)
The aim of this master's thesis are the engineering design of solutions for vertical elevator drive storage systém LLH – Schwerlast. The project is composed of technical report ans drawing documentation. The Technical report deals with storage and handling bar material, methods of control and manipulation of storage systems and structural design. In the structural part are designed draft drive and its main parts. The main parts of drive are checked using structural analysis. The drawing documentation is composed of assembly drawing, manufacturing dravings and welded frame drawing.

National Repository of Grey Literature : 39 records found   1 - 10nextend  jump to record:
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