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Composite electrode materials for lithium-ion batteries based on LiFePO4 prepared using GAC method
Vilhelm, Ondřej ; Neoral, Jiří (referee) ; Čech, Ondřej (advisor)
Presented work investigates the problem of secondary lithium-ion cells and the different available cathode materials. We have prepared samples of LiFePO4 with the addition of different kinds of carbon materials such as Super P, Vulcan and expanded graphite. We have always created the sample with and without surfactant. Developed samples were compared by measuring electrochemical methods (cyclic voltammetry, charge and discharge cycles and impedance spectroscopy). We also modeled the three-point cell for measuring electrochemical electrode materials.
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Influence of terminal groups of oligobutadiene on dielectric spectra
Vilhelm, Ondřej ; Rozsívalová, Zdenka (referee) ; Frk, Martin (advisor)
The bachelor works discourses about atributes of KRASOL LB oligobutadiens by Sartomer industries and KRASOL LB’s final groups. The research proceed by dielectric sweep spectroscopy using electrode technology Agilent 16452A that is used for gauge of transtition capacity and dissipation factor, by which we are able to enumerate both relative permittivity [‘] and figure of loss [“]. Every gauge depends on frequency and temperature.
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Influence of terminal groups of oligobutadiene on dielectric spectra
Vilhelm, Ondřej ; Rozsívalová, Zdenka (referee) ; Frk, Martin (advisor)
The bachelor works discourses about atributes of KRASOL LB oligobutadiens by Sartomer industries and KRASOL LB’s final groups. The research proceed by dielectric sweep spectroscopy using electrode technology Agilent 16452A that is used for gauge of transtition capacity and dissipation factor, by which we are able to enumerate both relative permittivity [‘] and figure of loss [“]. Every gauge depends on frequency and temperature.
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|
|
Composite electrode materials for lithium-ion batteries based on LiFePO4 prepared using GAC method
Vilhelm, Ondřej ; Neoral, Jiří (referee) ; Čech, Ondřej (advisor)
Presented work investigates the problem of secondary lithium-ion cells and the different available cathode materials. We have prepared samples of LiFePO4 with the addition of different kinds of carbon materials such as Super P, Vulcan and expanded graphite. We have always created the sample with and without surfactant. Developed samples were compared by measuring electrochemical methods (cyclic voltammetry, charge and discharge cycles and impedance spectroscopy). We also modeled the three-point cell for measuring electrochemical electrode materials.
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