Search for dissertations about: "all-solid-state"

Showing result 1 - 5 of 8 swedish dissertations containing the word all-solid-state.

2. 1. Functional Polymer Electrolytes for Multidimensional All-Solid-State Lithium Batteries

   Author : Bing Sun; Daniel Brandell; Kristina Edström; Michel Armand; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Polymer electrolyte; Li-battery; 3D-microbattery; Functionalization; Polyether; Polycarbonate; Copolymer; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

   Abstract : Pressing demands for high power and high energy densities in novel electrical energy storage units have caused reconsiderations regarding both the choice of battery chemistry and design. Practical concerns originating in the conventional use of flammable liquid electrolytes have renewed the interests of using solvent-free polymer electrolytes (SPEs) as solid ionic conductors for safer batteries. READ MORE

4. 2. Spectroelectrochemistry with Ultrathin lon-Selective Membranes

   Author : Yujie Liu; Gaston A. Crespo; Maria Cuartero; Alvaro Colina Santamaria; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Ion-selective electrodes; electron-transfer and ion-transfer processes; spectroelectrochemistry; ultrathin membranes; thin-layer voltammetry; coulometry; Jonselektiva elektroder; elektronöverförings- och jonöverföringsprocesser; spektroelektrokemi; ultratunna membran; tunnskiktsvoltammetri; coulometri; Kemi; Chemistry;

   Abstract : Rapid and decentralized chemical sensing strategies are highly demanded in contemporary society to monitor ongoing processes relevant to the environment, food analysis, healthcare, sports performance, etc. In this context, ion-selective electrodes (ISEs) based on polymeric membranes have emerged as a promising analytical technique owing to their features of low cost, portability, versatility, and energy efficiency. READ MORE

5. 3. Characterization of TFSI and FSI based polymer electrolytes for sodium batteries

   Author : Andrea Boschin; Chalmers tekniska högskola; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; ionic liquid; polymer electrolytes; NaTFSI; PEO; sodium batteries; NaFSI;

   Abstract : Lithium ion batteries (LIBs) are today dominating the field of rechargeable batteries for portable devices. Recently also other LIBs applications have been considered, such as electromobility and large-scale grid storage. READ MORE

6. 4. Conformations and vibrations in polymer electrolytes

   Author : Patrik Johansson; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Chemistry; Kemi; Chemistry; Kemi; Inorganic Chemistry; oorganisk kemi;

   Abstract : Solvent-free solid electrolytes can be formed by dissolving a salt in a polymer matrix (e.g. poly (ethylene oxide), PEO). Such compounds are of interest due to their proposed use as solid electrolytes in new types of electrochemical devices e. READ MORE

7. 5. Molecular Interactions and Dynamics in Lithium Conducting Electrolytes

   Author : Josefina Adebahr; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; ab initio calculations; plastic crystals; nanocomposite polymer electrolytes; NMR; Raman spectroscopy; gel electrolytes; polymer electrolytes;

   Abstract : Lithium conducting electrolytes, suitable for battery applications, have been characterized on a molecular level using Raman spectroscopy, ab initio calculations and nuclear magnetic resonance spectroscopy, in order to better understand molecular and ionic interactions and dynamics in the systems. Three different types of electrolytes have been investigated; polymer gel electrolytes, solid polymer electrolytes and plastic crystal materials, with the main focus on the polymer based electrolytes. READ MORE