Towards electrochemical-performance evaluation of fiber-based batteries: Fiber-arrangement-based method and FE² multiscale framework

Conventional battery models (e.g., Pseudo-2D model) were developed especially for particle-based battery electrodes and have limitations in addressing the newly-emerging fiber-based ones. This thesis proposes numerical tools for efficient property evaluation of fiber-based electrodes and for multiscale simulation of battery electrochemical...

Optimised high voltage spinels for Li-ion batteries

Mankind has started taking the global warming problem into consideration, and has been doing so for decades. The relevance of the problem is slowly reaching everyone’s mind, which has resulted in fast growth in important related research topics, among which energy materials. One of the most important challenges has to do both with transportation...

Lithium and Sodium Insertion in Nanostructured Titanates: Experiments and simulations

Nanostructured materials are featured by providing a variety of favourable electrical properties, as the reduced ion and electron transport paths enable significant enhancement on (de)intercalation rates and hence high power. For TiO2 anatase, nano-sizing results in a curved open cell voltage profile with a much shorter plateau region in...

Interaction between High-Voltage Cathode Materials and Ionic Liquids for Novel Li-Ion Batteries

The fast-growing market on electronic portable devices is possibly due to the development of Li-ion batteries. Besides, such batteries are the most promising candidates as energy storage media in (hybrid) electric vehicles, in the near future. However, improvements on electrochemical performances and on safety need to be achieved. With respect...

Structure and Dynamics of Lithium in Anastase TiO2