Sökning: "Electrolytes"

Visar resultat 11 - 15 av 258 avhandlingar innehållade ordet Electrolytes.

  1. 11. Block Copolymer Electrolytes : Polymers for Solid-State Lithium Batteries

    Författare :Andreas Bergfelt; Tim Bowden; Daniel Brandell; Yoichi Tominaga; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The use of solid polymer electrolytes (SPEs) for lithium battery devices is a rapidly growing research area. The liquid electrolytes that are used today are inflammable and harmful towards the battery components. LÄS MER

  3. 12. Liquid Redox Electrolytes for Dye-Sensitized Solar Cells

    Författare :Ze Yu; Lars Kloo; Md K Nazeeruddin; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; dye-sensitized solar cells; electrolytes; ionic liquids; redox couples; additives;

    Sammanfattning : This thesis focuses on liquid redox electrolytes in dye-sensitized solar cells (DSCs). A liquid redox electrolyte, as one of the key constituents in DSCs, typically consists of a redox mediator, additives and a solvent. LÄS MER

  4. 13. Innovative Electrolytes and Electrodes for Sodium-Ion Batteries

    Författare :Damien Monti; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; electrolytes; Sodium-ion batteries; ionic liquids; electrodes;

    Sammanfattning : Batteries are expected to be masterpieces for future large-scale energy storage, but the emergence of ecological and financial concerns has forced us to think about complementary battery technologies to the today outstanding lithium-ion batteries (LIBs). Therefore, the sodium-ion battery (SIB) is a concept worth studying - especially for large-scale applications due to the abundance of sodium as an element, the overall low cost anticipated, and the similarities with LiBs, which should ease a technology change. LÄS MER

  5. 14. Microscopic Dynamics and Structure of some Polymer-based Electrolytes

    Författare :DANIEL ANDERSSON; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; segmental motion; neutron scattering; ionic conduction; polymer electrolytes; gel electrolytes; Gaussianity; oligomers; photon correlation; PPO-LiClO4;

    Sammanfattning : The electrolyte is a key component in high-capacity lithium batteries and there is a large demand for improved materials to increase the performance. Polymer-based electrolytes offer advantages in the design of safer and lighter batteries. LÄS MER

  7. 15. Fluorine-Free Ionic Liquid Based Electrolytes: Synthesis and Structural Characterization

    Författare :Mukhtiar Ahmed; Faiz Ullah Shah; Patrik Johansson; Jiayin Yuan; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Ionic Liquids; Electrolytes; Sustainability; Vitamin B3; Chemistry of Interfaces; Gränsytors kemi;

    Sammanfattning : Since their introduction by Sony in 1990, lithium-ion batteries (LIBs) have acquired a sizable market share. They have the best energy densities, a high open circuit voltage, a low self-discharge rate, no memory effect, and a slow loss of charge when not in use. LÄS MER