Sökning: "solid polymer electrolyte"

Visar resultat 1 - 5 av 38 avhandlingar innehållade orden solid polymer electrolyte.

  1. 1. Electrolyte : Semiconductor Combinations for Organic Electronic Devices

    Författare :Elias Said; Magnus Berggren; Xavier Crispin; Gilles Horowitz; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Electrochemistry; Elektrokemi;

    Sammanfattning : The discovery of semi-conducting organic materials has opened new possibilities for electronic devices and systems because of their solution processibility, lightweight and flexibility compared to inorganic semiconductors. The combination of semiconductors with electrolytes, and more especially organic semiconductors and solid electrolytes has attracted the attention of researchers because of the multiple phenomena originating from the simultaneous motion of electrons and ions. LÄS MER

  3. 2. Innovative Polymer Hosts for Solid Lithium-ion Battery Electrolytes

    Författare :Orpita Majumdar Svensson; Tim Melander Bowden; Daniel Brandell; Georgina Gregory; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Kemi med inriktning mot polymerkemi; Chemistry with specialization in Polymer Chemistry;

    Sammanfattning : Current electrolytes used in lithium ion batteries are flammable and volatile organic liquids that are fundamentally unstable at the operational voltage of the cells, posing a significant safety risk. A practical approach to get over this obstacle is to substitute the liquid electrolyte solution with a solid (solvent-free) polymer electrolyte (SPE), which is a solution of a lithium salt in a solid polymer matrix. LÄS MER

  4. 3. Solid Polymer Lithium-Ion Conducting Electrolytes for Structural Batteries

    Författare :Markus Willgert; Mats Johansson; Alexander Bismarck; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This work comprises the manufacture and characterization of solid polymer lithium ion conducting electrolytes for structural batteries. In the study, polymer films are produced in situ via a rapid versatile UV irradiation polymerization route, in which ethylene oxide methacrylates are polymerized into thermoset networks. LÄS MER

  5. 4. Amphiphilic Graft Copolymer Electrolytes for Lithium-Ion Polymer Batteries. - Preparation and Characterisation

    Författare :Patrik Gavelin; Centrum för analys och syntes; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Polymer technology; biopolymers; Polymerteknik; Kemiteknik och kemisk teknologi; Chemical technology and engineering; transport dynamics; ion conductivity; solid polymer electrolyte; gel electrolyte; macromonomer copolymerization; amphiphilic graft copolymer;

    Sammanfattning : In the present work amphiphilic graft copolymers were prepared by free radical copolymerization of macromonomers in solution. The graft copolymers consisted of methacrylate backbones bearing ethylene oxide (EO)n side chains of varying length as ionophilic groups, and fluorocarbon (CF2)6 side chains or hydrocarbon groups as ionophobic groups. LÄS MER

  7. 5. Block Copolymer Electrolytes : Polymers for Solid-State Lithium Batteries

    Författare :Andreas Bergfelt; Tim Bowden; Daniel Brandell; Yoichi Tominaga; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The use of solid polymer electrolytes (SPEs) for lithium battery devices is a rapidly growing research area. The liquid electrolytes that are used today are inflammable and harmful towards the battery components. LÄS MER