P4-043
A model for a 280Ah LFP cell was developed based on the dominant physical degradation mechanism—SEI layer growth—including the influence of state of charge, temperature, and current rate. The model parameters were fitted to the manufacturer datasheet and validated using capacity results from 28 racks of a 4MW 2h BESS. The model shows good agreement […]
P4-043
A model for a 280Ah LFP cell was developed based on the dominant physical degradation mechanism—SEI layer growth—including the influence of state of charge, temperature, and current rate. The model parameters were fitted to the manufacturer datasheet and validated using capacity results from 28 racks of a 4MW 2h BESS. The model shows good agreement […]
P5-025
Second-life lithium-ion batteries are increasingly considered for stationary energy storage and renewable integration. However, a major challenge in second-life deployment is the absence of reliable historical usage data. Key operating parameters such as cycle count and C-rate exposure are typically unknown, making accurate assessment of State of Health (SoH) and Remaining Useful Life (RUL) highly […]
P2-091_Gielinger
This work investigates structural changes and macroscopic expansion in a commercial lithium-ion cell under operando conditions. Synchrotron X-ray diffraction (XRD) and interferometric dilatometry are combined to study the relationship between electrochemical processes and mechanical cell deformation during cycling. A commercial LiFePO₄/graphite cell was studied under controlled temperature and constant mechanical pressure. Structural measurements were performed […]
P4-030
The Safe Operating Area (SOA) of lithium-ion (Li-ion) batteries defines the permissible range of operational conditions (e.g., temperature, voltage) within which a battery can operate safely and reliably, avoiding damage, performance degradation, or critical hazards such as thermal runaway. Although the SOA concept plays a central role in battery safety and performance optimization, its continuous […]
P1-006
In this work, electrospun zinc ferrite fibers with spinel structure were produced under different conditions and investigated in spinel|3M ZnSO4 + buffered aqueous electrolyte|Zn cells comparing acetate-based buffers at different pH levels with a commercially available phthalate and a homemade phthalate buffer, as well as an MES-based buffer. Previous work in our group showed that […]
072
One of the biggest obstacles holding solid-state batteries back is the difficulty of achieving continuous contact surfaces between the electrodes and the separator. This leads to current constriction and a higher overvoltage within the Cell. Partial contact loss can already be present after the cell is manufactured, due to preexisting small pores, surface contamination, small […]
P2-077
Lithium-ion battery longevity is fundamentally limited by lithium plating during high-rate charging, a phenomenon that accelerates aging and compromises safety. Current detection methods are often either too slow for real-time application or require invasive instrumentation. This study presents a non-invasive, time-efficient methodology to detect the onset of lithium plating by isolating the charge transfer overpotential […]
P4-044
The rapid market penetration of electric, hybrid, and hydrogen vehicles is driving a growing demand for highly qualified professionals in the mobility sector. The AutoCove project addresses this challenge by closing critical skill gaps among students, teachers, and trainers across Europe. AutoCove focuses on future-oriented technologies, including battery technology, fire safety of electric vehicles, advanced […]
P4-032
In the field of electromobility, it is essential that the battery and all supporting components used for battery and energy management function perfectly. The overall system consists of various components such as the battery, battery housing, electronic and power control units, electrical connections, venting elements, sensors, cooling circuits, pumps and control valves. These components have […]