Sökning: "rechargeable batteries"

Visar resultat 1 - 5 av 30 uppsatser innehållade orden rechargeable batteries.

  1. 1. Inductive fast charging of IoT devices : An in-depth analysis of short-range wireless charging technologies based on induction

    Uppsats för yrkesexamina på avancerad nivå, Umeå universitet/Institutionen för fysik

    Författare :Franz Wikner; [2024]
    Nyckelord :Electromagnetic power transfer; Inductive power transfer; Short distance WPT;

    Sammanfattning : In the era of Internet of things (IoT), sensor-equipped devices exchange data over networks. In battery powered IoT devices, the lifespan of the devices is often much longer than the battery life, leading to multiple costly and environmentally hazardous battery replacements during the operational life of the devices. LÄS MER

  3. 2. Kärriktningsvisare för cykel - Bookman Urban Visibility

    Kandidat-uppsats, KTH/Skolan för industriell teknik och management (ITM)

    Författare :Johanna Abrahamsson; Linnéa Berggren; [2023]
    Nyckelord :;

    Sammanfattning : Företaget Bookman Urban Visibility ville undersöka marknaden och möjligheter kring integrerbar elcykelbelysning. Idag säljer företaget cykelbelysning och synlighetsprodukter men hade ett intresse av att expandera sortimentet till elcykelbelysning, som elcykelägarna kunde köpa och själva kunde koppla in i batteriet på sina cyklar. LÄS MER

  4. 3. Manufacturing batteries of the future : Critical challenges and undertakings to create the next generation energy storage

    Kandidat-uppsats, KTH/Produktionsutveckling

    Författare :Victor Carlsson; Victor Granat; [2023]
    Nyckelord :;

    Sammanfattning : In today's world, a dominating piece of news is the global race for large-scale production of Lithium-ion batteries (LIB). LIBs are important because they have become the most widely used type of rechargeable battery in modern electronic devices, such as smartphones, laptops, energy storage systems, and electric vehicles. LÄS MER

  5. 4. State of charge and heat impact on Li-ion batteries during calendar aging

    Uppsats för yrkesexamina på grundnivå, Uppsala universitet/Signaler och system

    Författare :Martin Jonsson; Tobias Karlsson; [2023]
    Nyckelord :State of charge; SoC; calendar aging; heat impact; Li-ion;

    Sammanfattning : Rechargeable batteries that are powering our everyday electronics go through their lifetime with countless charge/discharge cycles, after a few years the capacity has dropped noticeably. But how about batteries that are working as a back-up power system for when connection to the AC mains is not possible, they might only perform a handful of cycles but does this mean they last forever? On behalf of Getinge AB, this bachelor thesis aims to explore the subject named as ‘calendar aging’. LÄS MER

  7. 5. Electrochemical strategies to retrieve lost capacity in Li-ion batteries by reversed Li-trapping

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Oorganisk kemi; Uppsala universitet/Strukturkemi

    Författare :Christopher Thulin; [2023]
    Nyckelord :Electrochemistry; lithium trapping; lithium-ion battery; diffusion;

    Sammanfattning : Since the transportation sector wants to move away from fossil fuels and become more dependen ton clean and green energy, the use of rechargeable batteries is a good solution. Lithium-based batteries work very well as rechargeable batteries in electric vehicles. LÄS MER