PhD Position on All-Solid-State Batteries

The aim of this PhD project is to investigate lithium- and sodium-based solid-state batteries using muon-based bulk and interface characterization techniques. The main objective is to gain a mechanistic understanding of electrochemical performance, with a focus on ion distribution, transport, and degradation processes during battery operation. The project addresses key questions such as the formation of Li/Na concentration gradients during charge and discharge, the evolution of interphases, and degradation mechanisms including ageing, material dissolution (leaching), and transition-metal migration. Muon-based methods will be used to probe depth-resolved properties that are difficult to access with conventional techniques, enabling new insights into buried interfaces and bulk transport phenomena. Your work will focus on electrochemical and structural characterization of battery materials and cells, combined with muon-based experiments. You will design and carry out experiments to identify reaction pathways and degradation mechanisms, and analyze complex datasets to connect microscopic processes with macroscopic performance. Close collaboration with project partners will support the development and testing of materials and cell concepts. You will independently conduct experiments, including muon beamline studies, collaborate with academic and industrial partners, and disseminate your results through publications and presentations.

Empa's around 1,100 employees make essential contributions to the well-being of society for a future worth living. Empa is a research institution of the ETH Domain. Empa’s Laboratory Materials for Energy Conversion focuses on materials and device innovation for sustainable energy technologies. Muoniverse connects over 30 research groups and offers a structured research school with training, exchange opportunities, and career development. We are looking for candidates who enjoy collaborative, interdisciplinary research and value openness and shared progress. Muoniverse is committed to equal opportunities, diversity, and an inclusive research culture.

• You hold a Master’s degree in chemistry, materials science, or a related field

• Experience in electrochemistry or batteries is an advantage

• Excellent English skills are required