Sökning: "natural ageing"

Visar resultat 1 - 5 av 115 avhandlingar innehållade orden natural ageing.

  1. 1. Avoiding ageing : Surface degradation of commercial electrode materials in lithium-ion batteries

    Författare :Erik Björklund; Kristina Edström; Daniel Brandell; Reza Younesi; Frank Renner; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Li-ion battery; Ageing; Photoelectron spectroscopy; Nickel Manganese Cobalt Oxide;

    Sammanfattning : The battery market today expands rapidly, not least for electric vehicles. But to compete against the combustion engine, the cost of batteries must be reduced. After years of usage, the batteries degrade and need to be exchanged, increasing the cost over the vehicle lifecycle. LÄS MER

  3. 2. Effects of ageing on the mechanical properties of aluminium alloy AA 6063

    Författare :Robert Gao; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; natural ageing; precipitation; stabilising ageing; APFIM; ageing; formability; al-mg-si; TEM; aa 6063; tensile strength;

    Sammanfattning : .... LÄS MER

  4. 3. Anti-Ageing Strategies : How to avoid failure in sodium-ion batteries

    Författare :Le Anh Ma; Reza Younesi; Daniel Brandell; Laurent Duda; Philipp Adelhelm; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; sodium-ion batteries; manganese-based cathodes; solid electrolyte interphase; ageing mechanism; Chemistry with specialization in Inorganic Chemistry; Kemi med inriktning mot oorganisk kemi;

    Sammanfattning : In order to move away from fossil fuels, batteries are one of the most important technologies to store energy from renewable sources. The rapid demands of battery applications put pressure on supply chains of raw materials, such as lithium, nickel, copper, aluminium and cobalt. LÄS MER

  5. 4. The effects of deleterious mutations on ageing

    Författare :Martin Iinatti Brengdahl; Urban Friberg; Dominic Wright; Thomas Flatt; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ageing; Age-specific effects; Deleterious mutations; Drosophila melanogaster; Lifespan; Sex differences;

    Sammanfattning : Ageing is defined as the deterioration of an individual's physiological performance with advancing age, which leads to a decrease in reproduction and/or survival. The question why most organisms age has preoccupied humans for millennia and, over the last decades, resulted in an ever-increasing research effort to understand this phenomenon. LÄS MER

  7. 5. Ageing of the Nickel Metal Hydride Barrery

    Författare :Magnus Larsson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; pore size distribution; electrocheimical impedance spectroscopy; metal hydride; Ageing; state of charge;

    Sammanfattning : .... LÄS MER