Search for dissertations about: "GRAPHITE ELECTRODES"

Showing result 1 - 5 of 45 swedish dissertations containing the words GRAPHITE ELECTRODES.

  1. 1. Functional Binders at the Interface of Negative and Positive Electrodes in Lithium Batteries

    University dissertation from Uppsala : Uppsala universitet

    Author : Fabian Jeschull; Uppsala universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; binder; lithium-sulfur batteries; graphite; lithium-ion batteries; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

    Abstract : In this thesis, electrode binders as vital components in the fabrication of composite electrodes for lithium-ion (LIB) and lithium-sulfur batteries (LiSB) have been investigated.Poly(vinylidene difluoride) (PVdF) was studied as binder for sulfur-carbon positive electrodes by a combination of galvanostatic cycling and nitrogen absorption. READ MORE

  2. 2. Cellobiose dehydrogenase on electrodes - an electrochemical biosensor for various analytes tunable by positive charges

    University dissertation from Department of Chemistry, Lund University

    Author : Christopher Schulz; Lund University.; Lunds universitet.; [2015]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; cellobiose dehydrogenase; direct electron transfer; amperometric biosensor; glucose; lactose; cellobiose; calcium; polycation; graphite; gold; electrode;

    Abstract : Cellobiose dehydrogenase (CDH) is a sugar oxidizing enzyme secreted by various species of wood degrading fungi to assist the process of wood degradation. It can oxidise analytically relevant sugars as cellobiose, lactose or glucose leading to a gain of two electrons per sugar molecule. READ MORE

  3. 3. Paper-based Supercapacitors

    University dissertation from Sundsvall : Mid Sweden University

    Author : Britta Andres; Mittuniversitetet.; [2014]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; graphene; graphite; paper; nano fibrillated cellulose; supercapacitor; electric double-layer capacitor; energy storage; roll-to-roll; coating; kinetic energy recovery;

    Abstract : The growing market of mobile electronic devices, renewable off-grid energy sources and electric vehicles requires high-performance energy storage devices. Rechargeable batteries are usually the first choice due to their high energy density. However, supercapacitors have a higher power density and longer life-time compared to batteries. READ MORE

  4. 4. Low-Cost, Environmentally Friendly Electric Double-Layer Capacitors Concept, Materials and Production

    University dissertation from Sundsvall : Mid Sweden University

    Author : Britta Andres; Mittuniversitetet.; [2017]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Electric Double-Layer Capacitor; Graphite; Cellulose Nanofibers; Large-Scale; Mass Balancing; Metal-Free;

    Abstract : Today’s society is currently performing an exit from fossilfuel energy sources. The change to sustainable alternativesrequires inexpensive and environmentally friendly energy storagedevices. However, most current devices contain expensive,rare or toxic materials. These materials must be replaced bylow-cost, abundant, nontoxic components. READ MORE

  5. 5. Design and Characterisation of new Anode Materials for Lithium-Ion Batteries

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Linda Fransson; Uppsala universitet.; [2002]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; in situ X-ray diffraction; graphite; Li-ion battery; anode materials; intermetallics; structure-property relationships; Kemi; NATURAL SCIENCES Chemistry; NATURVETENSKAP Kemi; Inorganic Chemistry; oorganisk kemi;

    Abstract : Reliable ways of storing energy are crucial to support our modern way of life; lithium-ion batteries provide an attractive solution. The constant demand for higher energy density, thinner, lighter and even more mechanically flexible batteries has motivated research into new battery materials. Some of these will be explored in this thesis. READ MORE