Search for dissertations about: "liquid electrolytes"

Showing result 1 - 5 of 63 swedish dissertations containing the words liquid electrolytes.

  2. 1. Sodium Batteries: From Liquid to Polymer Electrolytes

    Author : Andrea Boschin; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; electrochemical solid state cells; polymer electrolytes; sodium batteries; liquid electrolytes;

    Abstract : Today lithium-ion batteries (LIBs) are dominating the field of rechargeable batteries for portable devices. More recently LIBs have also been considered for large-scale applications, such as in the areas of electromobility and grid storage. READ MORE

  4. 2. Structure and Dynamics in Ionic Liquid and Highly Concentrated Electrolytes

    Author : Filippa Lundin; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ionic Liquid; Electrolytes; SAXS; Highly concentrated electrolytes; QENS;

    Abstract : The electrolyte is a crucial part of a battery in terms of longevity and safety. However, the state-of-the-art electrolytes for lithium-ion batteries are based on organic solvents and Li-salts (typically 1M concentration) and are known to be volatile and to degrade at higher temperature. READ MORE

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

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

    Abstract : 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. READ MORE

  6. 4. Ionic Liquid Electrolytes for Photoelectrochemical Solar Cells

    Author : Heléne Gamstedt; Lars A. Kloo; Michael Grätzel; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ionic liquid electrolytes; Photoelectrochemical solar cells; Inorganic chemistry; Oorganisk kemi;

    Abstract : Potential electrolytes for dye-sensitized photoelectrochemical solar cells have been synthesized and their applicability has been investigated. Different experimental techniques were used in order to characterize the synthesized electrolytes, such as elemental analysis, electrospray ionisation/mass spectrometry, cyclic voltammetry, dynamic viscosity measurements, as well as impedance, Raman and NMR spectroscopy. READ MORE

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

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

    Abstract : 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. READ MORE