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Electrolytes based on sulfolan and similar solvents
Máca, Josef ; Zatloukal, Miroslav (referee) ; Sedlaříková, Marie (advisor)
Submitted thesis deal with study of aprotic electrolytes in order to increase the safety for use in lithno – ionts accumulators. Increase of safety is specified by measuring the flash point of each electrolytes, at the same time are evaluated also other parameters important for use in accumulators. For determine the window of temperatures where the electrolytes can work is measured by melting point. The melting point is measured by cryoscopy. From electrical properties is measured specific conductivity of the electrolyte.
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Aprotic electrolytes for lithium-ion batteries with higher temperature stability
Bajer, Michal ; Máca, Josef (referee) ; Sedlaříková, Marie (advisor)
Master thesis deals with safety of aprotic electrolites used in lithium – ion accumulators. Beside conductivity and viscosity of electrolytes is work focused to flashpoint of electrolytes with flame retardants. In main part of work is shortly explained lithium ion accumulator used materials and fundamentals. Flame retardancy mechanisms and used materials are disscussed too. In practical part work deals with description of used measuring methods and evaluation of gauged data. At least optimal composition of electrolyte with flame retardant is proposed.
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The salt influence on aprotic electrolytes
Pojer, Stanislav ; Vondrák, Jiří (referee) ; Máca, Josef (advisor)
This thesis deals with the liquid aprotic electrolytes with solvent on the basis of sulfolane blends with other solvent, in combination with the sodium and lithium salts. In these electrolytes are evaluated their properties due to their use in lithium - ion batteries in terms of safety and electrical properties. For safety risk is measured flashpoint and for electrical properties is measured electrical conductivity for selected samples are intended capacities of double layers.
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Aprotic electrolytes with fire retardant
Hlava, Kamil ; Máca, Josef (referee) ; Sedlaříková, Marie (advisor)
This thesis deals with liquid aprotic electrolytes based on sulfolane with added flame retardant. The theoretical part of the thesis explains concepts - mainly aprotic electrolytes, flame retardants, and their practical use. It also discusses lithium - ion accumulators and materials used in them while focusing on the electrolyte function. The practical part of the thesis aims to measure the properties of aprotic electrolytes: their conductivity, potential window and flashpoint. It also contains a review of the measurement results.
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Aprotic electrolytes with fire retardant
Hlava, Kamil ; Máca, Josef (referee) ; Sedlaříková, Marie (advisor)
This thesis deals with liquid aprotic electrolytes based on sulfolane with added flame retardant. The theoretical part of the thesis explains concepts - mainly aprotic electrolytes, flame retardants, and their practical use. It also discusses lithium - ion accumulators and materials used in them while focusing on the electrolyte function. The practical part of the thesis aims to measure the properties of aprotic electrolytes: their conductivity, potential window and flashpoint. It also contains a review of the measurement results.
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|
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The salt influence on aprotic electrolytes
Pojer, Stanislav ; Vondrák, Jiří (referee) ; Máca, Josef (advisor)
This thesis deals with the liquid aprotic electrolytes with solvent on the basis of sulfolane blends with other solvent, in combination with the sodium and lithium salts. In these electrolytes are evaluated their properties due to their use in lithium - ion batteries in terms of safety and electrical properties. For safety risk is measured flashpoint and for electrical properties is measured electrical conductivity for selected samples are intended capacities of double layers.
|
|
|
Aprotic electrolytes for lithium-ion batteries with higher temperature stability
Bajer, Michal ; Máca, Josef (referee) ; Sedlaříková, Marie (advisor)
Master thesis deals with safety of aprotic electrolites used in lithium – ion accumulators. Beside conductivity and viscosity of electrolytes is work focused to flashpoint of electrolytes with flame retardants. In main part of work is shortly explained lithium ion accumulator used materials and fundamentals. Flame retardancy mechanisms and used materials are disscussed too. In practical part work deals with description of used measuring methods and evaluation of gauged data. At least optimal composition of electrolyte with flame retardant is proposed.
|
|
|
Electrolytes based on sulfolan and similar solvents
Máca, Josef ; Zatloukal, Miroslav (referee) ; Sedlaříková, Marie (advisor)
Submitted thesis deal with study of aprotic electrolytes in order to increase the safety for use in lithno – ionts accumulators. Increase of safety is specified by measuring the flash point of each electrolytes, at the same time are evaluated also other parameters important for use in accumulators. For determine the window of temperatures where the electrolytes can work is measured by melting point. The melting point is measured by cryoscopy. From electrical properties is measured specific conductivity of the electrolyte.
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