Sökning: "William Brant"

Hittade 4 avhandlingar innehållade orden William Brant.

  1. 1. Crystallographic studies of non-equilibrium structural changes in cathode materials

    Författare :Olof Gustafsson; William Brant; Marnix Wagemaker; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Diffraction; Crystallography; Li-ion battery cathode materials; Spinel; Chemistry with specialization in Inorganic Chemistry; Kemi med inriktning mot oorganisk kemi;

    Sammanfattning : Battery cathode materials are a key focus for improvement of Li-ion battery chemistries due their limits in terms of capacity and cost. During insertion and extraction of Li, many cathode materials exhibit structural changes, ranging from e.g. phase transitions to amorphization. LÄS MER

  3. 2. Advancements in Lithium-Based Batteries : Unraveling and Mitigating Performance-Limiting Phenomena in Negative Electrodes

    Författare :Yu-Kai Huang; Leif Nyholm; William Brant; Erik Lewin; Gunther Brunklaus; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; lithium-based batteries; negative electrodes; negative electrode materials; lithium diffusion; lithium trapping; lithium electrodeposition; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

    Sammanfattning : The development of lithium-based batteries, especially lithium-ion batteries, has changed our daily lives significantly. The technologies first enabled by lithium-based batteries are now in turn creating a demand for better lithium-based batteries with higher energy densities and longer cycling lifetimes. LÄS MER

  4. 3. Synthesis–Structure–Property Relationships in Li- and Mn-rich Layered Oxides

    Författare :Ashok S. Menon; William Brant; Montserrat Casas-Cabanas; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Li- and Mn-rich layered oxides; Li-ion battery cathode materials; synthesis–property relationships; stacking faults; anionic redox materials;

    Sammanfattning : The commercialisation of Li-ion batteries over the last decade has provided additional impetus for the improvement of existing energy storage technologies. Towards this, a major portion of the global efforts includes exploratory research aimed at the development of new material chemistries. LÄS MER

  5. 4. New strategies for characterizing Prussian blue analogues

    Författare :Ida Nielsen; William Robert Brant; Andrew Kentaro Inge; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Prussian blue analogues; positron annihilation lifetime spectroscopy; Mössbauer spectroscopy; sodium-ion batteries; neutron diffraction; octahedral tilting; sodium iron hexacyanoferrate; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

    Sammanfattning : Prussian blue analogues (PBAs), AxM[M’(CN)6]1–y·zH2O, are used in many different applications, such as energy storage, due to their tunable composition and structural diversity. To understand the material properties, it is important to accurately determine the composition and atomic structure of these materials. LÄS MER