Search for dissertations about: "sodium-ion batteries"

Showing result 16 - 20 of 20 swedish dissertations containing the words sodium-ion batteries.

  2. 16. Ab initio modelling of alkali-ion battery electrolyte properties

    Author : Erlendur Jonsson; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Batteries; sodium salts; lithium salts; ab initio; DFT; electrolytes; anions;

    Abstract : Lithium-ion batteries are omnipresent in modern electronics. They can be found in laptops, mobile phones and electric vehicles. READ MORE

  4. 17. Anion redox processes in novel battery cathode materials investigated by soft X-ray spectroscopy

    Author : Felix Massel; Laurent Duda; Håkan Rensmo; Maria Hahlin; Kevin Smith; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; soft X-ray spectroscopy; X-ray absorption spectroscopy XAS ; resonant inelastic X-ray scattering RIXS ; lithium-ion battery LIB ; sodium-ion battery SIB ; anionic redox; cathode materials; layered manganese oxide; spinel LNMO;

    Abstract : This thesis presents experimental investigations of the electronic structure of emerging and novel cathode materials used in lithium- and sodium-ion batteries. The investigated materials include a range of oxide materials containing the elements nickel and manganese. READ MORE

  5. 18. Structure and Dynamics in Liquid Battery Electrolytes

    Author : Gustav Åvall; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The introduction of Sony’s rechargeable lithium-ion battery in 1991 sparked a transformation of our everyday life, enabling wide-spread use of portable electronics, such as smartphones and laptops. Furthermore, in recent years the increased usage of electrical vehicles and the on-going change to transient renewable energy sources has created a large interest in cheaper, safer, more sustainable, long-lasting and energy denser batteries. READ MORE

  6. 19. Aqueous Exfoliation of Transition Metal Oxides for Energy Storage and Photocatalysis Applications : Vanadium Oxide and Molybdenum Oxide Nanosheets

    Author : Ahmed S. Etman; Junliang Sun; Yury Gogotsi; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; aqueous exfoliation; vanadium oxide nanosheets; molybdenum oxide nanosheets; energy storage; photocatalysis; Inorganic Chemistry; oorganisk kemi;

    Abstract : Two-dimensional (2D) transition metal oxides (TMOs) are a category of materials which have unique physical and chemical properties compared to their bulk counterparts. However, the synthesis of 2D TMOs commonly includes the use of environmental threats such as organic solvents. READ MORE

  7. 20. Fluorine-Free Phosphorus-Based Ionic Materials and Electrolytes

    Author : Yanqi Xu; Faiz Ullah Shah; Patrik Johansson; Jonas Örtegren; Luleå tekniska universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Fluorine-free electrolytes; Physiochemical properties; Nuclear magnetic resonance; Ion interactions; Single crystal structures; Chemistry of Interfaces; Gränsytors kemi;

    Abstract : Due to the successful commercialization of lithium-ion batteries (LIBs), there is a growing interest in developing new battery materials with beneficial electrochemical properties. However, the uneven distribution of lithium resources and the low abundance of lithium in the earth crust are the main obstacles for further development and large-scale production of LIBs. READ MORE