Sökning: "lithium salts"

Visar resultat 11 - 15 av 32 avhandlingar innehållade orden lithium salts.

  1. 11. In-situ Investigations of Lithium-Sulfur Batteries

    Författare :Matthew Sadd; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : As the demand for high energy-density storage devices increases, we must look beyond the current state of the art technology, the lithium-ion battery. Lithium-ion battery technologies are approaching their theoretical limit in terms of capacity, and now that the demand for longer-range electric vehicles (EVs) and the implementation of grid storage is increasing, we need to provide technologies that can go beyond what is currently possible. LÄS MER

  3. 12. Pure, Hybrid and Polymerized Ionic Liquid Based Electrolytes For High Temperature Lithium-Ion Battery Application

    Författare :Manfred Kerner; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ionic liquid; EMIFSI; lithium-ion battery; EMITFSI; high-temperature stability; Pip14TFSI; Pyr13TFSI; electrolyte; LiFSI; polymer;

    Sammanfattning : Today, lithium-ion batteries (LIBs) are ubiquitous in mobile phones, laptops, and other portable devices. Additionally, LIBs are becoming more and more popular for powering hybrid and electric vehicles. LÄS MER

  4. 13. Constructing Poly(Ionic Liquid)s-Based Composite Solid State Electrolytes and Application in Lithium Metal Batteries

    Författare :Jiajia Li; Xiaoyan Ji; Marcus Öhman; Zhang Haitao; Daniel Rettenwander; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Solid composite electrolytes; Polymeric ionic liquids; Lithium metal batteries; Energiteknik; Energy Engineering;

    Sammanfattning : The pursuit of reliable and high-performance batteries has fueled extensive research into new battery chemistries and materials, aiming to enhance the current lithium-ion battery technologies in terms of energy density and safety. Among the potential advancements, solid-state batteries (SSBs) have captured significant attention as the next-generation energy storage technology. LÄS MER

  5. 14. 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

  7. 15. Characterization of Reaction Products in the Li-O2 Battery Using Photoelectron Spectroscopy

    Författare :Reza Younesi; Kristina Edström; Patrik Johansson; Fredrik Björefors; Gabriel Veith; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Li-O2 Battery; Surface Characterization; Lithium-Air Battery; Photoelectron Spectroscopy; XPS; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry; Chemistry with specialization in Physical Chemistry; Kemi med inriktning mot fysikalisk kemi;

    Sammanfattning : The rechargeable Li-O2 battery has attracted interest due to its high theoretical energy density (about 10 times better than today’s Li-ion batteries). In this PhD thesis the cycling instability of the Li-O2 battery has been studied. LÄS MER