Search for dissertations about: "pseudocapacitance"

Showing result 1 - 5 of 6 swedish dissertations containing the word pseudocapacitance.

2. 1. Mesoporous Titania for High Rate Electrochemical Energy Storage

   Author : Giulio Calcagno; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Mesoporous Titanium Dioxide; XAS; Pseudocapacitance; Hybrid Asymmetric Supercapacitors;

   Abstract : Mesoporous titanium oxides are increasingly attracting interest as potential candidates for fast electrochemical energy storage. In this thesis, mesoporous titania of different polymorphs have been evaluated in relation to their ability to reversibly store Li+ ions inside their structure. READ MORE

4. 2. Novel electrolytes for next-generation hybrid supercapacitors - Investigating the interaction between electrolyte and electrode

   Author : Simon Lindberg; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ionic liquids; NaTFSI; superconcentrated; non-aqueous; VO2; MnO2; pseudocapacitance; Hybrid supercapacitors;

   Abstract : The storage of electrical energy is of outmost importance in today’s society, ranging from cell phones to large scale energy storage of intermittent electricity sources. Batteries, that are most commonly used, struggle with low power density and limited cycle lifetime. READ MORE

5. 3. Biohybrid Polymer Electrodes for Renewable Energy Storage

   Author : Fátima Nadia Ajjan Godoy; Olle Inganäs; Tomasz Rebis; Martin Sjödin; Linköpings universitet; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES;

   Abstract : Daily and seasonally fluctuating energy supply and demand requires adequate energy storage solutions. In recent years electrochemical supercapacitors have attracted considerable attention due to their ability to both store and deliver electrical energy efficiently. READ MORE

6. 4. Modelling and Experimental Investigation of the Dynamics in Polymer Electrolyte Fuel Cells

   Author : Katarina Wiezell; Göran Lindbergh; Lars Pettersson; Anders Dahlkild; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; polymer electrolyte fuel cell; modelling; electrochemical impedance spectroscopy; water transport; membrane; Electrochemistry; Elektrokemi;

   Abstract : In polymer electrolyte fuel cells (PEFC) chemical energy, in for example hydrogen, is converted by an electrochemical process into electrical energy. The PEFC has a working temperature generally below 100 °C. Under these conditions water management and transport of oxygen to the cathode are the parameters limiting the performance of the PEFC. READ MORE

7. 5. Wood-derived lignin-based fibers as supercapacitor electrodes

   Author : Azega Rajendra Babu Kalai Arasi; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; lignin; green electrode materials; energy storage; supercapacitor;

   Abstract : Today, in order to replace fossil energy sources with renewable energy sources such as solar and wind, reliable energy storage systems that can provide power regardless of the intermittent nature of the energy sources must be created. Especially with the future’s rising energy demands the development of such energy storage systems from green-collar materials with the least negative environmental impact is pressing. READ MORE