Master's thesis – Analysis of functional model layers for anode-free Na batteries using atomic force microscopy

Research for a society in change: This is our drive at the Jülich Research Centre. As a member of the Helmholtz Association, we are presenting great social challenges of our time and exploring options for the digi­tali­sated society, a climate-saving energy system and related services. Work together with some 7,600 colleagues: in one of the largest research centres in Europe and shape the change with us! In the Institute of Energy Technologies – Basics of Electrochemistry (IET-1) we are researching highly topical topics about the energy transition and structural change. For example, we focus on the battery of the future and explore new battery concepts. How to make the greenhouse gas carbon dioxide (CO2) from the climate killer a raw material of the future is another exciting topic that we are dealing with. The aim of the research and development work is cost-effective batteries, fuel cells and electrolyzers with improved energy and power density, longer service life and maximum safety! Find out more about our mission and future-oriented projects: go.fzj.de/iet-1. We offer at the next possible time Master thesis – Analysis of functional model layers for anode-free Na batteries by scanning force microscopy

Na-ion batteries are a chance-rich alternative to Li-ion batteries for a turn to environmentally friendly and resource-saving materials and can at the same time represent a solution strategy for growing energy demand. However, Na batteries remain behind the current Li-ion storage technologies, in particular because of their low gravimetric energy density. An approach is anode-free Na batteries with an improved gravimetric energy density. In this project, these functional layers and various electrolyte compositions for anode-free Na batteries are examined using model systems with scanning force microscopy to identify the development of particularly suitable material and cell properties for future anode-free Na batteries. Your tasks in detail: Processing and literature research for scanning force microscopy and sodium ion batteries Production of layers/coating on metal substrates Material science characterization of the layer systems and electrochemical analysis of these in electrochemical cells Implementation and evaluation of advanced scanning-force microscopic experiments in electrochemical cells Preparation of samples by ion beam polishing, mechanical polishing and/or other methods Correlation of results with data of other analytical methods (SEM, Nanoindentation, etc.) provided by colleagues Documentation of the work and the results within the Master's thesis

Master's degree in chemistry, physics, material sciences or a comparable discipline Knowledge in the field of scanning force microscopy and/or electrochemistry of batteries is advantageous First experiences in the field of laboratory work are desirable, preferably in the context of physical chemistry First experience in programming (preferably Python) is advantageous, but not absolutely necessary Self-sponsored and responsible working, ready-to-use, high level of team capacity and pleasure in cooperative cooperation Very good knowledge of German and English in word and writing

We work on highly topical socially relevant topics and offer you the opportunity to actively shape change! It expects a diverse range: Sensual tasks: Their thesis addresses a future-oriented, socially relevant topic with immediate practical relevance in an international environment. Scientific environment: You expect excellent scientific equipment, modern technologies and qualified support from experienced colleagues. Flexibility: Flexible working time design makes it easier for you to work together. Health and well-being: Your health is at our heart. It offers extensive occupational health management with a variety of offers – e.g. through beach volleyball court, running groups, yoga courses and much more. In addition, our medical service as well as an experienced team of social counselling are on site. Fair remuneration: Your final work will be appropriately rewarded with us. In addition to exciting tasks and a collegial team, we offer you a lot more: go.fzj.de/Benefits. .