Sökning: "Rechargeable batteries"

Visar resultat 21 - 25 av 44 avhandlingar innehållade orden Rechargeable batteries.

1. 21. Fluorine-Free Ionic Liquids and Electrolytes : From Synthesis to Energy Storage Applications

   Författare :Mukhtiar Ahmed; Faiz Ullah Shah; Patrik Johansson; Alexander Shaplov; Luleå tekniska universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ionic Liquids; Electrolytes; Sustainability; Lithium ion batteries; Flourine-Free; Chemistry of Interfaces; Gränsytors kemi;

   Sammanfattning : Since their introduction by Sony in 1990, lithium-ion batteries (LIBs) have acquired a sizable market share. They have the best energy densities, a high open circuit voltage, a low self-discharge rate, no memory effect, and a slow loss of charge when not in use. LÄS MER

3. 22. Novel Multi-Scale Modeling Framework for Structure and Transport in Complex Battery Electrolytes

   Författare :Rasmus Andersson; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; hierarchical analysis; electrolytes; force field development; molecular dynamics; non-vehicular transport; multi-scale method; Lithium-ion batteries; genetic algorithms;

   Sammanfattning : Affordable high energy rechargeable batteries are crucial for further electrification of the transport sector, which is necessary in order to contribute to limit our CO2 emissions to acceptable levels. While today’s lithium-ion batteries (LIBs) have indeed initiated the electrification of the transportation section successfully, electric vehicles are still expensive and typically have ranges limited to ca. LÄS MER

4. 23. Electrochemical Characterizations of Conducting Redox Polymers : Electron Transport in PEDOT/Quinone Systems

   Författare :Mia Sterby; Martin Sjödin; Maria Strömme; Rikard Emanuelsson; Adolf Gogoll; Robert Hillman; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Conducting Redox Polymer; PEDOT; Quinone; Charge transport; Conductivity; Organic Battery; Engineering Science with specialization in Nanotechnology and Functional Materials; Teknisk fysik med inriktning mot nanoteknologi och funktionella material;

   Sammanfattning : Organic electrode materials for rechargeable batteries have caught increasing attention since they can be used in new innovative applications such as flexible electronics and smart fabrics. They can provide safer and more environmentally friendly devices than traditional batteries made from metals. LÄS MER

5. 24. Nanocomposites of Cellulose and Conducting Polymer for Electrical Energy Storage

   Författare :Henrik Olsson; Leif Nyholm; Maria Strømme; Martin Sjödin; Johan Bobacka; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polypyrrole; Nanocomposites; Energy storage; Conducting polymers; Cellulose; Engineering Science with specialization in Nanotechnology and Functional Materials; Teknisk fysik med inriktning mot nanoteknologi och funktionella material;

   Sammanfattning : The world’s increased energy storage demand, as well as the environmental concerns related to the combustion of fossil fuels, has triggered a transition to intermittent renewable energy sources as well as to electrical and hybrid vehicles. Current day rechargeable batteries are, due to the invention and development of lithium ion batteries, technologically well positioned to answer to some of these demands. LÄS MER

7. 25. Structure and Dynamics in Liquid Battery Electrolytes

   Författare :Gustav Åvall; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

   Sammanfattning : The introduction of Sony’s rechargeable lithium-ion battery in 1991 sparked a transformation of our everyday life, enabling wide-spread use of portable electronics, such as smartphones and laptops. Furthermore, in recent years the increased usage of electrical vehicles and the on-going change to transient renewable energy sources has created a large interest in cheaper, safer, more sustainable, long-lasting and energy denser batteries. LÄS MER