Search for dissertations about: "Reza Younesi"

Showing result 1 - 5 of 8 swedish dissertations containing the words Reza Younesi.

2. 1. Characterization of Reaction Products in the Li-O2 Battery Using Photoelectron Spectroscopy

   Author : Reza Younesi; Kristina Edström; Patrik Johansson; Fredrik Björefors; Gabriel Veith; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Li-O2 Battery; Surface Characterization; Lithium-Air Battery; Photoelectron Spectroscopy; XPS; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry; Chemistry with specialization in Physical Chemistry; Kemi med inriktning mot fysikalisk kemi;

   Abstract : The rechargeable Li-O2 battery has attracted interest due to its high theoretical energy density (about 10 times better than today’s Li-ion batteries). In this PhD thesis the cycling instability of the Li-O2 battery has been studied. READ MORE

4. 2. Avoiding ageing : Surface degradation of commercial electrode materials in lithium-ion batteries

   Author : Erik Björklund; Kristina Edström; Daniel Brandell; Reza Younesi; Frank Renner; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Li-ion battery; Ageing; Photoelectron spectroscopy; Nickel Manganese Cobalt Oxide;

   Abstract : The battery market today expands rapidly, not least for electric vehicles. But to compete against the combustion engine, the cost of batteries must be reduced. After years of usage, the batteries degrade and need to be exchanged, increasing the cost over the vehicle lifecycle. READ MORE

5. 3. Exploring Reaction Pathways in Li-ion Batteries with Operando Gas Analysis

   Author : Robin Lundström; Erik Berg; Reza Younesi; Isidora Cekic-Laskovic; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Online electrochemical mass spectrometry; Li-ion batteries; Solid electrolyte interphase; Reaction pathways; ; Kemi med inriktning mot materialkemi; Chemistry with specialization in Materials Chemistry;

   Abstract : The reliance on Li-ion batteries is increasing as we transition from fossil fuels to renewable energy sources. Despite their widespread use, a gap remains in understanding certain processes within these batteries, especially regarding the solid electrolyte interphase (SEI) and the impact of side reactions on Li-ion batteries. READ MORE

6. 4. Anti-Ageing Strategies : How to avoid failure in sodium-ion batteries

   Author : Le Anh Ma; Reza Younesi; Daniel Brandell; Laurent Duda; Philipp Adelhelm; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; sodium-ion batteries; manganese-based cathodes; solid electrolyte interphase; ageing mechanism; Chemistry with specialization in Inorganic Chemistry; Kemi med inriktning mot oorganisk kemi;

   Abstract : In order to move away from fossil fuels, batteries are one of the most important technologies to store energy from renewable sources. The rapid demands of battery applications put pressure on supply chains of raw materials, such as lithium, nickel, copper, aluminium and cobalt. READ MORE

7. 5. Realization of Sodium-ion Batteries : From Electrode to Electrolyte Materials

   Author : Ronnie Mogensen; Reza Younesi; Daniel Brandell; Kang Xu; Uppsala universitet; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; Sodium-ion batteries; electrolytes; Prussian white; Chemistry with specialization in Inorganic Chemistry; Kemi med inriktning mot oorganisk kemi;

   Abstract : Batteries are among the most important technologies required to enable the world to move beyond fossil fuels towards a more efficient and environmentally friendly society based on electricity from renewable sources. Unfortunately, the rapidly increasing number and size of batteries that the world needs in order to perform this paradigm shift is putting enormous strain on the supply of traditional raw materials for batteries, such as lithium and cobalt. READ MORE