Sökning: "Lithium-ion batteries"

Visar resultat 16 - 20 av 150 avhandlingar innehållade orden Lithium-ion batteries.

  1. 16. Ionic Liquid Based Electrolytes for High-Temperature Lithium-Ion Batteries

    Författare :Manfred Kerner; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; EMITFSI; EMIFSI; electrolyte; ionic liquid; lithium-ion battery; high-temperature stability; LiFSI;

    Sammanfattning : Today, lithium-ion batteries (LIBs) are ubiquitous in mobile phones, laptops, and other portable devices. The research community strives to further improve the LIB to increase electric driving distance and efficiency of both hybrid electric vehicles (HEVs) and fully electric vehicles (EVs). LÄS MER

  3. 17. Fundamental Insights into the Electrochemistry of Tin Oxide in Lithium-Ion Batteries

    Författare :Solveig Böhme; Leif Nyholm; Kristina Edström; Laure Monconduit; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Tin; Tin oxide; Lithium-ion batteries; Electrochemistry; High temperature cycling; Conversion reaction; XPS; SEM; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

    Sammanfattning : This thesis aims to provide insight into the fundamental electrochemical processes taking place when cycling SnO2 in lithium-ion batteries (LIBs). Special attention was paid to the partial reversibility of the tin oxide conversion reaction and how to enhance its reversibility. LÄS MER

  4. 18. Failure Mechanisms of Lithium-ion Battery Electrolytes: Detection and Mitigation

    Författare :Susanne Wilken; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; additives; Lithium-ion batteries; thermal stability; LiPF6; electrolytes; vibrational spectroscopy;

    Sammanfattning : The state-of-the-art electrolyte of the lithium-ion batteries (LIBs) present in most portable electronics contains the salt LiPF6 , organic solvents such as ethylene carbonate and dimethyl carbonate and a number of additives. This is true regardless of the exact active materials i.e. electrodes or cell design e. LÄS MER

  5. 19. Carbon Fibres for Multifunctional Lithium-Ion Batteries

    Författare :Johan Hagberg; Göran Lindbergh; Dan Zenkert; Juan Vilatela; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical Engineering; Kemiteknik;

    Sammanfattning : The transportation industry today faces many challenges because of the rapid movement towards electrification. One major challenge is the weight of the battery, which limits the effectiveness of the vehicles. LÄS MER

  7. 20. Sustainable Recycling of Spent Lithium-ion Batteries : An In-situ Approach for Recovery and Alloying of Valuable Metals

    Författare :Safoura Babanejad; Hesham Ahmed; Charlotte Andersson; Ari Jokilaakso; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Li-ion battery; black mass; Recycling; Pyrometallurgy; modeling; Process Metallurgy; Processmetallurgi;

    Sammanfattning : A large number of Li-ion batteries used today will reach their End-Of-Life (EOL) in a few years. After their EOL, the recovery of their precious elements is required. By applying physical separation, a fraction with fine particle size is left behind which is known as Black Mass (BM). LÄS MER