Search for dissertations about: "Li-O2 Battery"

Found 4 swedish dissertations containing the words Li-O2 Battery.

  2. 1. Characterization of Reaction Products in the Li-O2 Battery Using Photoelectron Spectroscopy

    Author : Reza Younesi; Kristina Edström; Patrik Johansson; Fredrik Björefors; Gabriel Veith; Uppsala universitet; []
    Keywords : 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;

    Abstract : 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. READ MORE

  4. 2. The O2 electrode performance in the Li-O2 battery

    Author : Jia Liu; Jiefang Zhu; Kristina Edström; Poul Norby; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Li-oxygen battery; X-ray irradiation; Electrocatalyst; Synchrotron radiation powder X-ray diffraction; Time-resolved kinetics; Binder-free cathode; Bird’s nest microstructure.;

    Abstract : Li-O2 batteries have been attracting increasing attention and R&D efforts as promising power sources for electric vehicles (EVs) due to their significantly higher theoretical energy densities compared to conventional Li-ion batteries. The research presented in this thesis covers the investigation of factors influencing the decomposition of Li2O2, the development of highly active electrocatalysts, and the design of low-cost and easy-operation binder-free O2 electrodes for Li-O2 batteries. READ MORE

  5. 3. Li2O2 quantification in non-aqueous Li-O2 batteries with binder-free cathodes

    Author : Chenjuan Liu; Torbjörn Gustafsson; Martin Sahlberg; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : The non-aqueous Li-air (Li-O2) battery has been emerging as one of the most promising high-energy storage systems to meet the requirements for electric vehicle applications due to its high theoretical energy density. In order to uncover the underlying electrochemistry and enable an informed battery design, it is crucial to gain a detailed understanding of the cell´s chemical components as well as its behavior during cycling. READ MORE

  6. 4. Exploration of Non-Aqueous Metal-O2 Batteries via In Operando X-ray Diffraction

    Author : Chenjuan Liu; Torbjörn Gustafsson; Laurence Hardwick; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Keywords: lithium-oxygen batteries; sodium-oxygen batteries; metal-air; in operando X-ray diffraction; cathode materials; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

    Abstract : Non-aqueous metal-air (Li-O2 and Na-O2) batteries have been emerging as one of the most promising high-energy storage systems to meet the requirements for demanding applications due to their high theoretical specific energy. In the present thesis work, advanced characterization techniques are demonstrated for the exploration of metal-O2 batteries. READ MORE