The instability of lithium growth during battery recharging leads to the formation of the solid-electrolyte interphase (SEI) that ultimately degrades the performance and lifetime of lithium ion batteries. Operando monitoring of the nucleation, growth and stripping of Li during electrodeposition (shown in the image) and the effect of the substrate on the kinetic and thermodynamic mechanisms will be explored by means of tracking their evolution from sequences of images in transmission electron microscopy (TEM). The goal of this project is to design image-analysis algorithms that extract information of the surface area and circularity of Li particles as a function of time and voltage. The algorithmic framework will be implemented in Java as an ImageJ/Fiji plugin. It will include a user interface and permit automatic processing of the large TEM datasets. The student will work in close collaboration with the laboratory of Prof. Vasiliki Tileli (http://ine.epfl.ch/) throughout the project.