Sökning: "lithium-based batteries"

Hittade 4 avhandlingar innehållade orden lithium-based batteries.

  1. 1. 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

  3. 2. Electrochemical characterisations of TiO2 nanotube and lithium-metal electrodes for lithium-based batteries

    Författare :Charlotte Ihrfors; Leif Nyholm; Fredrik Björefors; Marnix Wagemaker; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lithium-ion batteries; titanium dioxide nanotubes; lithium metal electrodes; Chemistry with specialization in Inorganic Chemistry; Kemi med inriktning mot oorganisk kemi;

    Sammanfattning : Lithium-ion batteries have since their introduction on the commercial market in the early 1990s played an important role within the field of energy storage. In this thesis both titanium dioxide, TiO2, and lithium metal are investigated based on their properties as anodes for lithium-based battery technologies. TiO2 nanotubes with lengths between 4. LÄS MER

  4. 3. Novel Materials for Fuel Cells and Batteries Light Scattering Studies of the Structure and Dynamics of Polymer Electrolytes

    Författare :Hanna Ericson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; proton conducting polymer; Raman spectroscopy; gel electrolyte; photon correlation spectroscopy; fuel cell membrane; polymer electrolyte;

    Sammanfattning : The development of new materials and technologies for electrochemical energy conversion and storage, such as fuel cells and batteries, is important for a future more efficient use of energy. Polymer electrolytes are key components in polymer electrolyte fuel cells and lithium-based batteries. LÄS MER

  5. 4. Tight-Binding Modelling of Deep Eutectic Solvent-Based Lithium Battery Electrolytes

    Författare :Mirna Alhanash; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; molecular dynamics; xTB; tight-binding; deep eutectic solvent; electrolyte.;

    Sammanfattning : In recent years, there has been a growing interest in utilizing liquid electrolytes such as deep eutectic solvents (DES) as electrolytes for lithium batteries, owing to their numerous advantageous properties, including ease of preparation, tunability, wide electrochemical stability windows, and low vapor pressures. However, an aspect that remains poorly understood is the intricate relationship between the local structural symmetry, entropy, and the macroscopic properties of DES electrolytes. LÄS MER