News and Events

In a recent publication in the Journal of Power Sources, the Chair of Automotive Technology at TUM analyzes the impedance relaxation behavior of lithium-ion cells following defined discharge procedures. The study investigates the impact of state of charge (SoC), depth of discharge (DoD), and realistic discharge profiles on impedance over relaxation periods of up to 46… [read more]

In a recent publication in eTransportation, the Chair of Automotive Technology at TUM presents a novel methodology for impedance-based early detection of thermal runaway (TR) and precise temperature estimation in large-format lithium-ion batteries—both at the cell and system level. The study focuses on realistic battery modules with parallel-connected cells, as used… [read more]

The study investigated the aging behavior of battery cells under realistic vehicle load profiles and compared it to aging under constant laboratory cycling—while maintaining identical average discharge power and charging behavior. The results show that constant cycling leads to significantly stronger degradation, particularly in terms of increased loss of lithium… [read more]

In a recent study published in the Journal of The Electrochemical Society, Jonas Dickmanns and Lennart Reuter from the Chair of Technical Electrochemistry at TUM investigated how the formation process and the development of the solid electrolyte interphase (SEI) affect the structure and ionic transport properties of porous graphite electrodes in lithium-ion batteries… [read more]

In a recent study published in the Journal of The Electrochemical Society, the Chair of Technical Electrochemistry at TUM presents a detailed breakdown of the temperature-dependent chemical and electrochemical oxidation of the electrolyte, and its connection to key aging mechanisms such as LiPF₆ salt decomposition and transition metal dissolution from a… [read more]

In a recent study published in ACS Applied Materials & Interfaces, researchers from the Chair of Technical Electrochemistry at TUM present a novel operando X-ray photoelectron spectroscopy (XPS) setup to investigate the electrochemical stability of composite cathodes in all-solid-state batteries (ASSBs). The team examined the interface between a Ni-rich layered oxide… [read more]