Thematische Bibliographien / Lithno-iontový

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  1. Dissertationen

Auswahl der wissenschaftlichen Literatur zum Thema „Lithno-iontový“

Autor: Grafiati
Veröffentlicht am 28. Juni 2021
Zuletzt aktualisiert am 13. Februar 2022

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Dissertationen zum Thema "Lithno-iontový"

1

Staněk, Vladimír. „Vlastnosti aprotických elektrolytů pro lithno-iontové akumulátory“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-221040.

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The present work deals with the properties of suitable electrolytes for lithium-ion batteries. The first part described in the current issue of electrolytes for lithium-ion batteries, types of solvents and their properties and methods of measurement properties. The second part is devoted to the measurement of the properties of solvents and electrolytes such as relative permittivity, density and viscosity. Measurement of relative permittivity was focused on the measurement of the solvent mixture with varying the percentage of the solvent. Viscosity and density were measured on a solvent with a lithium salt added (final electrolyte).
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2

Kratochvíl, Miroslav. „Výzkum elektrochemických a materiálových charakteristik nově vyvinutých vrstevnatých elektrodových materiálů pro lithno-iontové baterie“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2009. http://www.nusl.cz/ntk/nusl-217929.

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The diploma thesis deals with electrode materials for lithium-ions accumulators, concretely layered materials prepared via new methods. The main objective of this work is dealing with new procedures prepare electrodes of newly developed layered electrode materials and subsequently their measure. Another challenge was a theoretical analysis of newly developed layered electrode materials for positive and negative electrodes and their preparation of new procedures. In this work the detailed procedures for the preparation of individual electrodes, electrolytes and other issues associated with these preparations. There were describing batteries of general, primary and secondary lithium cells, fuel cells, Lithium-ion batteries, layered materials forming the electrodes and of course the history these cells. Practical work is focused on separate measurements layered electrode materials prepared by new processes and assessment of results for individual layered materials. In the practical part has been made that the newly prepared layered electrode materials offer higher capacity and voltage.
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3

Hujňák, Jan. „Studie materiálů pro Li-ion akumulátory pomocí elektronové mikroskopie“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413237.

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This work deals with problems of lithium-ion batteries. In the theoretical part are described electrochemical sources in general and their division. The main representatives of individual types of electrochemical sources are described in more detail. In the next part the thesis focuses specifically on lithium-ion accumulators, their history, electrochemical reactions taking place inside and materials of individual parts of which the accumulator consists. Next part focuses on electron microscopy and its division into scanning and transmission. Basic parts and the principle of operation are described. The practical part is focused on creating a small cell for examination under an electron microscope.
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4

Benešová, Petra. „Stanovení nejvhodnějšího poměru katodových materiálů pro systém lithium-síra“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2021. http://www.nusl.cz/ntk/nusl-442427.

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This master's thesis deals with a topic of determination of the most suitable ratio of cathode materials for the lithium-sulfur systems. The first two chapters provide a general introduction to the topic of electrochemical energy sources and present the commonly used primary and secondary battery systems with emphasis on their characteristics and applications. The core of the theoretical part is dedicated to lithium-ion and lithium-sulfur batteries, their working principles along with the benefits or drawbacks related to the particular systems, and widely used materials. The experimental part briefly comments on determining the suitable electrode paste preparation method, the subsequent main part is focused on evaluation of electrochemical performance of cells using different ratios of cathode materials. Five samples of cathode materials were prepared, where the sulfur ratio is in range from 64 to 88 wt. %. Finally, the comparison of all prepared ratios in terms of their electrochemical properties is provided.
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5

Kršňák, Jiří. „Studium vlastností katodového materiálu pro Li-ion články v závislosti na struktuře aktivní vrstvy“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2014. http://www.nusl.cz/ntk/nusl-220961.

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This article deals with properties of cathode material of lithium-ion cells study in term of active layer dependence. Aim of the work is to get familiar with problematics of cathode material production and diagnostics and to compare different active layer production methods. The opening of the work is concentrating on rechargeable batteries, mainly lithium-ion batteries and their electrode materials. Practical part is describing method of cathode material production and its characteristics.
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6

Pustowka, Pavel. „Studie vlastností pokročilých materiálů pro katody lithno-iontových akumulátorů“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2016. http://www.nusl.cz/ntk/nusl-254476.

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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.
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7

Buchta, Martin. „Vliv retardéru hoření na záporné elektrody v lithno – iontovém akumulátoru“. Master's thesis, Vysoké učení technické v Brně. Fakulta elektrotechniky a komunikačních technologií, 2020. http://www.nusl.cz/ntk/nusl-413033.

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This diploma thesis deals with problematics of electrochemical power sources with focus on lithium accumulators, their construction and functioning priciple. It also discusses the safety of li-ion batteries with respect to their flammability. In addition, the flame retarders, which help to lower the flammability, are listed. The thesis describes Cyclic Voltammetry and Galvanostatic Cycling with Potencial which are lithium-ion cell measuring methods. In the last part, the influence of various flame retarders on negative electrode is compared based on the conducted tests.
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