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Visar resultat 1 - 5 av 8 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Lithium ion Battery Aging: Battery Lifetime Testing and Physics-based Modeling for Electric Vehicle Applications

    Författare :Evelina Wikner; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Physics-based modeling; Electric Vehicle EV ; Battery lifetime tests; Hybrid Electric Vehicle HEV ; Plug-in Hybrid Electric Vehicle PHEV ; Calendar aging;

    Sammanfattning : Electrification of vehicles is one solution in reducing emissions from the transport sector, and in particular to limit tail-pipe emissions in cities. In order to make the electrification successful and cost effective, there is a high demand for longer drive range and longer battery lifetime. LÄS MER

  3. 2. Lithium-ion battery models for performance and aging

    Författare :Jing Ying Ko; Göran Lindbergh; Ulrike Krewer; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Lithium-ion batteries; pseudo two-dimensional model; model extension; parametrization; aging; lifetime; Chemical Engineering; Kemiteknik;

    Sammanfattning : The demand for lithium-ion batteries (LiBs) is increasing at an exponential rate, so is the need to understand their behaviors and properties.In this pursuit, models are useful tools for improving cell design,quality, control system, keeping track of performance, aging andlifetime. LÄS MER

  4. 3. Ageing in Commercial Li-ion Batteries: Lifetime Testing and Modelling for Electrified Vehicle Applications

    Författare :Evelina Wikner; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Battery lifetime tests; Physics-based modelling; Plug-in Hybrid Electric Vehicle PHEV ; Empiric model; Calendar ageing;

    Sammanfattning : In this thesis, ageing in a commercial pouch cell for vehicle application is investigated through lifetime testing and modelling. The lifetime tests investigate the impact of temperature, current, depth of discharge (DOD) and state of charge (SOC). LÄS MER

  5. 4. Development of a Novel Method for Lithium-Ion Battery Testing on Heavy-Duty Vehicles

    Författare :Pontus Svens; Mårten Behm; Göran Lindbergh; Per Alvfors; Anders Malmqvist; KTH; []
    Nyckelord :Lithium-ion battery; HEV; field testing; heavy-duty vehicles;

    Sammanfattning : Increasing demands for lower environmental impact from vehicles, including heavy-duty vehicles, have driven several vehicle manufacturers to consider adding hybrid electrical vehicles (HEV’s) to the product portfolio. Present research on batteries for HEV’s is mainly focused on lithium-ion battery chemistries, since lithium-ion batteries has the most promising technical potential compared to other types of batteries. LÄS MER

  7. 5. Mechanical behavior of Lithium-ion battery electrodes – experimental and statistical finite element analyses

    Författare :İbrahim Buğra Üçel; Peter Gudmundson; Ralf Jänicke; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Li-ion batteries; mechanical testing; statistics; finite elements; electrodes; Solid Mechanics; Hållfasthetslära;

    Sammanfattning : The applications of Li-ion batteries in the electronics and vehicle industry is increasing at a very rapid pace. This is primarily due to superior properties such as high specific energy storage and power as well as wider operation temperature ranges. LÄS MER