Sökning: "Cathode materials"

Visar resultat 1 - 5 av 20 uppsatser innehållade orden Cathode materials.

  1. 1. Battery Cell Offering for Mid-Market Battery Electric Vehicles

    Master-uppsats, Lunds universitet/Innovationsteknik

    Författare :Oscar Bengtsson; Rebecka Markensten; [2022]
    Nyckelord :lithium-ion battery; BEV; mid-market; low-cost battery; Technology and Engineering; Business and Economics;

    Sammanfattning : The rapid transformation of the automotive industry to electric vehicles is putting immense pressure on not just vehicle manufacturers (OEMs), but the entire battery electric vehicle (BEV) supply chain. This includes lithium-ion battery cells, the current state-of-the-art technology for energy storage in BEVs. LÄS MER

  2. 2. An Initial Exploration of Transition Metal Nitroprussides as Electrode Materials for Sodium-ion Batteries

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Strukturkemi

    Författare :Veronica Enblom; [2022]
    Nyckelord :Sodium-ion batteries; Transition metal nitroprussides; Electrode materials; Prussian blue analogues; Cathode materials; Nitrosyl redox; Anisotropic charge transfer; Hysteresis; Sustainable batteries;

    Sammanfattning : Na-ion batteries (NIBs) are expected to revolutionise the battery sector by promising an affordable technology while capitalising on sustainable development. To compete with Li-ion batteries, however, electrode materials with higher capacities need to be developed. LÄS MER

  3. 3. Implications of different sensor resolutions and contrast settings in a roll-to-roll process, considering the speed of the process vs identifying defects, for manufacturing green batteries : A study on the effect of light conditions on thedetection of defects in cathode foil in batteries

    Master-uppsats, KTH/Mekatronik

    Författare :Behnam Yosef Nezhad Arya; [2021]
    Nyckelord :Contrast; Surface; Resolution; Speed; Defect; Sensor; Battery; Computer vision; Roll-to-roll; Contact Image Sensor; Mechatronics; Ljusinställning; Yta; Kontrast; Resolution; Hastighet; Defekt; skada; Sensor; Batteri; Computer vision; Roll-to-roll; Contact Image Sensor; Mekatronik.;

    Sammanfattning : This Master’s thesis work is about the conditions that can affect the identification of defects in lithium-ion batteries. In lithium batteries, there are cathode and anode, which are separated with electrically insulative but ionically conductive electrolytes and separators. LÄS MER


    Master-uppsats, Uppsala universitet/Materialteori; Uppsala universitet/Kärnfysik

    Författare :Mirna Alhanash; [2021]
    Nyckelord :Organic batteries; computational; DFT; sulfonamides;

    Sammanfattning : The world’s ever-growing energy demand has evoked great interest in exploring renewable energy sources along with sustainable energy storage systems. While inorganic physics of rocking chair mechanism used in Li-ion battery have proven to provide high energy density and high performance, there are problems yet to be overcome in terms of sustainability and recyclability. LÄS MER

  5. 5. Investigating Particle Cracking in Single- and Polycrystalline Nickel-Rich Cathodes using In Situ Impedance Spectroscopy

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Strukturkemi

    Författare :Mattias Sjödin; [2021]
    Nyckelord :Electrochemical surface area; particle cracking; NMC811; transmission-line model; equivalent-circuit fitting; commercial Li-ion batteries;

    Sammanfattning : State-of-the-art Li-ion cathode materials are based on LiMO2 (M=Ni, Mn, Co) layered transition metal oxides (denoted NMC) with Ni-rich composition because of their high specific capacity. Yet, these materials suffer from poor capacity retention due to crack formation during de-/lithiation cycling. LÄS MER