Search for dissertations about: "EIS modeling"

Found 4 swedish dissertations containing the words EIS modeling.

  2. 1. Electrochemical Studies of Aging in Lithium-Ion Batteries

    Author : Matilda Klett; Göran Lindbergh; Charles Delacourt; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; aging; EIS modeling; electrolyte characterization; graphite; hybrid electric vehicles; impedance spectroscopy; LiFePO4; Li-ion batteries;

    Abstract : Lithium-ion batteries are today finding use in automobiles aiming at reducing fuel consumption and emissions within transportation. The requirements on batteries used in vehicles are high regarding performance and lifetime, and a better understanding of the interior processes that dictate energy and power capabilities is a key to strategic development. READ MORE

  4. 2. Electrical impedance of human skin and tissue alterations : mathematical modeling and measurements

    Author : Ulrik Birgersson; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Electrical impedance;

    Abstract : The overall aim of the studies in this thesis is twofold. One is oriented towards calibrating a classifier in differentiating between malignant melanoma and benign nevi of the skin. READ MORE

  5. 3. Modeling and Testing of Insulation Degradation due to Dynamic Thermal Loading of Electrical Machines

    Author : Zhe Huang; Industriell elektroteknik och automation; []
    Keywords : thermal degradation; thermal cycle; dynamic temperature; thermal-mechanical; fatigue; electrical insulation system; accelerated testing; condition monitoring; electrical machine; electrified vehicles;

    Abstract : Electrical machines in electrified vehicles are subjected to dynamic loadings at different driving conditions, which results in dynamic temperatures. The aging of the Electrical Insulation System (EIS) in electrical machines is caused by these dynamic temperatures, namely high average temperatures and temperature cycles. READ MORE

  6. 4. Performance of Conventional and Structural Lithium-Ion Batteries

    Author : Maria Hellqvist Kjell; Göran Lindbergh; Mårten Behm; Anthony Kucernak; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Abstract : Lithium-ion batteries have, in recent years, experienced a rapid development from small everyday devices towards hybrid electric vehicle (HEV) applications. Due to this shift in application area, the battery performance andits degradation with time are becoming increasingly important issues to besolved. READ MORE