Sökning: "Na-ion Batteries"

Visar resultat 1 - 5 av 9 avhandlingar innehållade orden Na-ion Batteries.

  1. 1. Organic Negative Electrode Materials For Li-ion and Na-ion Batteries

    Författare :Alina Oltean; Daniel Brandell; Leif Nyholm; Kristina Edström; Martin Sjödin; Aleksandar Matic; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; organic materials; Li-ion batteries; Na-ion batteries; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

    Sammanfattning : .... LÄS MER

  3. 2. Defect Thermodynamics and Kinetics in Polyanionic Cathodes : A Theoretical Roadmap for Na-ion based Batteries and Hybrid Supercapacitors

    Författare :Teeraphat Watcharatharapong; Rajeev Ahuja; Sudip Chakraborty; Jan Isberg; Palani Balaya; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; DFT; Energy Materials; Defects; Chemical potentials; Kinetics; Hybrid supercapacitors; Na-ion batteries; Polyanionic cathodes;

    Sammanfattning : In this thesis, the framework of the density functional theory is employed to study and predict properties of polyanionic cathodes for Na-ion batteries and hybrid supercapacitors. It consists of three main parts as follows:The first part is primarily dedicated to kröhnkite-type Na2Fe(SO4)22H2O cathode. LÄS MER

  4. 3. All-organic aqueous Na-ion energy storage devices

    Författare :Martin Karlsmo; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; hybrid supercapacitor; battery; battery supercapacitor hybrid; aqueous electrolyte; All-organic; Na-ion capacitor; energy storage;

    Sammanfattning : Development of all-organic aqueous energy storage devices (ESDs) is a promising pathway towards meeting the needs of technically medium/low-demanding electrical applications. These ESDs should favour low cost, low environmental impact, and safety, and thus complement high voltage and energy/power dense storage such as lithium-ion batteries. LÄS MER

  5. 4. Building Sustainable Batteries : Organic electrodes based on Li- and Na-benzenediacrylate

    Författare :Alina Oltean; Daniel Brandell; Leif Nyholm; Steven Renault; Martin Sjödin; Robert Dominko; Uppsala universitet; []
    Nyckelord :Organic Electrode Materials; Li-ion Batteries; Na-ion Batteries; Calendaring; Recycling Process; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

    Sammanfattning : As possible alternatives to the conventional inorganic Li- or Na-ion battery electrode materials, organic compounds have recently drawn considerable attention. However, major challenges such as poor electronic conductivity, solubility in battery electrolyte or fast capacity decay of the resulting electrochemical cells are some of the reasons that hold these compounds back from becoming commercial solutions in the energy system. LÄS MER

  7. 5. Structural and Electrochemical Relations in Electrode Materials for Rechargeable Batteries

    Författare :Viktor Renman; Kristina Edström; Mario Valvo; Cesar Pay Gómez; Mats Johnsson; Helmer Fjellvåg; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; batteries; electrochemical energy storage; oxohalides; conversion; alloy; pyrosilicate; CuHCF; MnHCM; XRD; XANES; in operando; Chemistry with specialization in Inorganic Chemistry; Kemi med inriktning mot oorganisk kemi;

    Sammanfattning : Rechargeable batteries have already conquered the market of portable electronics (i.e., mobile phones and laptops) and are set to further enable the large-scale deployment of electric vehicles and hybrid electric vehicles in a not too distant future. LÄS MER