Modelling of a Lithium-Air-Battery using three-dimensional high resolution in-operando X-ray tomography and impedance spectroscopy

该项目的目的是对锂空气电池的结构和形态过程有一个基本的了解，并开发电极结构的物理化学三维模型。同步辐射X射线断层扫描将被用来调查的三维结构在锂空气电池在operando在放电/充电。结构和形态的过程将被定量描述和相关的结构参数负责的电池性能将被确定。与运行中的阻抗测量一起，将实现对电池中的过程的更好的基本理解。基于收集的层析数据的三维结构模型将被开发和以后用于模拟研究。这些模拟将有助于理解不同操作条件下复杂的电池行为，并将用于开发优化的电极结构。

Aim of the project is a fundamental understanding of the structural and morphological processes in Li-air batteries and the development of a physico-chemical three-dimensional model of the electrode structures. Synchrotron X-ray tomography will be used to investigate the 3D structures in a Li-air battery in-operando during discharging/charging. The structural and morphological processes will be described quantitatively and the relevant structural parameters responsible for the battery properties will be identified. Together with in-operando impedance measurements a better fundamental understanding of the processes in the battery will be achieved. Based on the collected tomographic data the 3D structure model will be developed and later used for simulation studies. The simulations will help to understand the complex battery behaviour at different operating conditions and will be used for development of optimized electrode structures.