Sökning: "Battery modelling"

Visar resultat 1 - 5 av 49 avhandlingar innehållade orden Battery modelling.

1. 1. Characterisation and modelling of lithium-ion battery electrolytes

   Författare :Peter Georén; KTH; []
   Nyckelord :lithium battery; electrolyte; characterisation; mass transport; stability; modelling; electrochemical; Raman spectroscopy; impedance;

   Sammanfattning : Rechargeable batteries play an important role as energycarriers in our modern society, being present in wirelessdevices for everyday use such as cellular phones, video camerasand laptops, and also in hybrid electric cars. The batterytechnology dominating the market today is the lithium-ion(Li-ion) battery. LÄS MER

3. 2. Validated Modelling of Electrochemical Energy Storage Devices

   Författare :Niklas Mellgren; Anders Dahlkild; Michael Vynnycky; Jesper Oppelstrup; KTH; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; lithium ion battery; polymer electrolyte fuel cell; modelling; model validation; parameter fitting; Fluid mechanics; Strömningsmekanik;

   Sammanfattning : This thesis aims at formulating and validating models for electrochemical energy storage devices. More specifically, the devices under consideration are lithium ion batteries and polymer electrolyte fuel cells. A model is formulated to describe an experimental cell setup consisting of a LixNi0.8Co0. LÄS MER

4. 3. Modelling of Battery Electrolyte Interactions

   Författare :Gustav Åvall; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lithium-ion batteries; semi-empirical Methods.; sodium-ion batteries; ab initio molecular dynamics; electrolytes; density functional theory;

   Sammanfattning : The rechargeable lithium-ion battery (LIB), powering our portable electronics, has transformed our everyday lives. Even though the success of the LIB there is a need for next generation batteries, due to a lack of abundant lithium and a need for greater performance and sustainable chemistries, in order to move towards a sustainable society with applications such as hybrid and electrical vehicles (EVs) and large scale energy storage for solar and wind power. LÄS MER

5. 4. Materials Modelling for Energy Harvesting : From Conversion to Application through Storage

   Författare :Amitava Banerjee; Rajeev Ahuja; Gunnar Niklasson; Sudip Chakraborty; Tejs Vegge; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Materials Modelling; DFT; Energy Materials; Photocatalysis; HER and OER; Hybrid Perovskite Solar Cells; Stability; Thermodynamics and Kinetics in Na-ion battery; Organic Crystal Battery;

   Sammanfattning : In this Ph.D. thesis, ab initio density functional theory along with molecular dynamics and global optimization methods are used to unveil and understand the structures and properties of energy relevant materials. In this connection, the following applications are considered: i. LÄS MER

7. 5. Computational modelling of structural battery composites

   Författare :David Carlstedt; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Finite Element Analysis FEA ; Multifunctional materials; Carbon fibre composites; Thermo-electro-chemo-mechanical coupling; Li-ion batteries;

   Sammanfattning : Batteries and surrounding structures (e.g. battery modules and packs) in electrical vehicles and devices are often designed in a way that prevents the electro-chemically active part of the battery cells from being exposed to mechanical loads during operation/service. LÄS MER