Master Thesis: Advanced cathode design for high-performance Zinc-ion batteries

04.09.2024, Diplomarbeiten, Bachelor- und Masterarbeiten

We focus on enhancing the performance of water-based Zn-ion batteries (ZIBs) by developing advanced cathode materials. By investigating organic, water-compatible compounds like cellulose, and optimizing their structure, crystallinity, and surface properties, the study aims to improve energy density, cycle stability, and rate capability. Techniques like XRD, SEM, TEM, and electrochemical methods will be used to address challenges and enhance ZIB performance for sustainable energy storage.

Water-based Zn-ion batteries (ZIBs) offer enhanced safety, lower cost, and environmental friendliness. However, achieving high performance and long-term stability in ZIBs remains a significant challenge, particularly concerning the design and optimization of cathode materials. This research project focuses on the development of advanced cathode materials tailored to enhance the electrochemical performance of water-based Zn-ion batteries.

The study investigates various organic (cellulose-based), water-compatible compounds, with an emphasis on optimizing their structural and electrochemical properties. By systematically exploring the effects of material composition, crystallinity, and surface modification, we aim to improve the energy density, cycle stability, and rate capability of Zn-ion batteries. Additionally, we address the interaction mechanisms between Zn ions and the cathode materials, with the goal of mitigating issues such as dissolution, phase transition, and structural degradation during cycling.

To characterize the cathode materials, a combination of techniques will be employed, including X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM) for structural analysis, as well as electrochemical methods like galvanostatic charge-discharge tests and cyclic voltammetry for performance evaluation. Insights gained from these studies will contribute to the development of robust cathode materials, paving the way for the next generation of high-performance, sustainable Zinc-ion batteries.

Are you interested in developing next generation batteries? Please reach out to me via lucas.kreuzer@frm2.tum.de, currently there are open positions for master students.

Kontakt: lucas.kreuzer@frm2.tum.de