Search for dissertations about: "impedance lithium"

Showing result 16 - 20 of 29 swedish dissertations containing the words impedance lithium.

  2. 16. 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

  4. 17. Tools for characterizing performance degradation in lithium-ion batteries

    Author : Alexander J. Smith; Rakel Wreland Lindström; Göran Lindbergh; Pontus Svens; Martin Winter; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical Engineering; Kemiteknik;

    Abstract : Lithium-ion batteries have enabled vast societal changes, ranging in scale from the adoption of personal electronics to electromobility and grid-scale, renewable energy storage. However, all applications face performance fade over time, observed as losses of battery capacity and power. READ MORE

  5. 18. Durability Aspects of Fast Charging, Mechanical Constraint, and Inhomogeneity in Lithium-Ion Batteries

    Author : Abdilbari Shifa Mussa; Rakel Wreland Lindström; Göran Lindbergh; Gregory Offer; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lithium-ion batteries; NMC 111 ; Graphite; Cycle ageing; Fast-charging; Inhomogeneity; Current distribution; Pressure; Curvature; Temperature.; Chemical Engineering; Kemiteknik;

    Abstract : The development of lithium-ion batteries with higher energy and power density, better safety, and lower cost has significantly contributed to the increased market share of electric vehicles (EVs) in the last decade. However, the expectations of end-users of EVs still require a continuous quest for better performance. READ MORE

  6. 19. Modeling and Analysis of the Interaction of Batteries and Power Electronic Converters

    Author : Rúdi Soares; Oskar Wallmark; Remus Teodorescu; KTH; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Alternating current; aging; electric vehicles; harmonics; lithium-ion batteries; power converter; resonant filters; ripple; temperature control.; Electrical Engineering; Elektro- och systemteknik;

    Abstract : This thesis deals with the interaction of batteries and power electronic converters in automotive applications. Even if the additional heating caused by (unwanted) alternating currents is disregarded, there has been a concern that alternating currents can be harmful for batteries. READ MORE

  7. 20. Characterization of Novel Electrolytes for Li-Batteries

    Author : Luis Aguilera Medina; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; TFSI; pyrrolidinium; lithium ion battery; SAXS; organic solvent; Raman scattering; electrolyte; ionic liquid; imidazolium;

    Abstract : In a world that strives toward greener and more sustainable energy solutions, the need for suitable energy storage devices has brought Lithium-ion batteries (LIB) into focus of research. Although the Lithium-ion battery is a consolidated technology for portable applications, capacity, cost, and not the least safety aspects are major concerns when it comes to its implementation into large-scale energy storage applications, such as electric vehicles. READ MORE