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Technical University of Munich

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New publication from TUM’s Chair of Technical Electrochemistry: Composition controls OCV hysteresis in cobalt-free, Li-rich layered oxides

In a recent study published in the Journal of The Electrochemical Society, Tim Kipfer, Rafael B. Berk, Felix Riewald, Michele Piana, and Hubert A. Gasteiger (TUM Chair of Technical Electrochemistry) investigate how the composition of cobalt-free, lithium-rich layered oxides (LR-NMs) relates to open-circuit-voltage (OCV) hysteresis. This link is crucial because OCV…

New Publication from the Chair of Electrical Energy Storage Technology: Aging Behavior of High-Capacity Pouch Cells Under Controlled Anode Potential Charging

In a recent study, the Chair of Electrical Energy Storage Technology at TUM investigated the aging behavior of 5.4 Ah multilayer pouch cells cycled within different state-of-charge windows. Charging was performed using voltage trajectories derived from physiochemical-thermal simulations at defined constant anode potentials. 🔗 Open-access article:…

Invitation: Start-up Day - Fuel Cell & Battery Innovations

The ECS Student Chapter Munich is pleased to invite you to this year’s Start-up Day, focusing on innovations in fuel cell and battery technologies.

New Publication from the Chair of Electrical Energy Storage Technology: Degradation Analysis of Lithium-Ion Cells with Silicon-Dominant Anodes

In a recent study, the Chair of Electrical Energy Storage Technology at TUM investigates the nuances of voltage reconstruction in degradation mode analysis. The study examines various initial parameterizations and algorithm settings. By using T-cells with lithium metal reference electrodes, the fitted single-electrode potentials could be directly validated against…

New Publication by the Advanced Materials Group at FRM II on Lithium Loss Mechanisms in NCA||Si Cells

In a recent study, the Advanced Materials Group at FRM II demonstrates that during cyclic aging of NCA||Si cells, lithium is lost from the cathode and remains trapped in the silicon-rich anode. Operando neutron diffraction and prompt gamma activation analysis (PGAA) confirm the structural changes and lithium redistribution—providing important insights into degradation…

New Study from the Chair of Automotive Technology: Influence of Load Profiles on Impedance Relaxation Behavior in Lithium-Ion Batteries

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…

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