Sökning: "diglyme"

Hittade 4 uppsatser innehållade ordet diglyme.

  1. 1. Bismuth anode for sodium-ion batteries

    Master-uppsats, Uppsala universitet/Strukturkemi

    Författare :Tochukwu Nwafornso; [2021]
    Nyckelord :;

    Sammanfattning : It is imperative to develop alternative battery technologies based on naturally abundant elements, with competitive performance as lithium-ion batteries. Sodium has a natural abundance 1000 times more than lithium with both lithium and sodium-ion batteries having similar chemistry. LÄS MER

  3. 2. Morphology of electrodeposited Na on Al electrodes

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Strukturkemi

    Författare :Tim Melin; [2019]
    Nyckelord :Electrodeposition; Morphology; Sodium-ion batteries;

    Sammanfattning : The demand for alternative secondary batteries to lithium-ion batteries (LIBs) grows. Sodium-ion batteries (SIBs) have been studied for many years and could replace LIBsfor some application. Metallic anodes for both LIBs and SIBs are interesting due totheir high energy densities. LÄS MER

  4. 3. Sodium trapping in aluminium current collectors

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Strukturkemi

    Författare :Ville Nyström; [2019]
    Nyckelord :Na; sodium; trapping; current collector; Al; aluminium; glyme; diglyme;

    Sammanfattning : The aim of this master thesis was to establish if sodium is trapped in aluminium current collectors, which in turn could affect the capacity fade in sodium-ion battery systems. In the case of lithium-ion batteries, previous studies have shown that a trapping mechanism, where lithium diffuses through the active material and current collectors, can explain the capacity fade observed for several systems. LÄS MER

  5. 4. Characterization of reaction products in sodium-oxygen batteries : An electrolyte concentration study

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Strukturkemi

    Författare :Jonas Hedman; [2017]
    Nyckelord :Sodium-oxygen batteries; Sodium superoxide; Sodium peroxide; Energy storage; Scanning electron microscopy; X-Ray diffraction; Carbon cathodes; Electrochemistry; Material characterization; Sodium triflate; Diglyme;

    Sammanfattning : In this thesis, the discharge products formed at the cathode and the performance and cell chemistry of sodium-oxygen batteries have been studied. This was carried out using different NaOTf salt concentrations. LÄS MER