CFP-5319
The thermal runaway of Li-ion batteries presents significant hazards to people, the environment and other assets, both physical and reputational. While rare, these events have substantial consequences in automotive, domestic and commercial applications. Hence, understanding the probability of failure and the variation in failure characteristics e.g. temperature, occurrence of fire or gas composition etc., is […]
CFP-5317
Lithium-Ionen-Batterien (Li-Ion) sind aufgrund ihrer hohen Energiedichte und langen Lebensdauer in einer Vielzahl von Anwendungen weit verbreitet, von tragbaren Elektronikgeräten bis hin zu Elektrofahrzeugen. Dennoch stellt das Phänomen des Lithium-Plating eine erhebliche Herausforderung dar. Lithium-Plating tritt auf, wenn Lithium-Ionen während des Ladevorgangs an der Anode abgeschieden werden, anstatt in die Elektrodenstruktur einzudringen. Dies kann nicht […]
CFP-5311
The integration of advanced battery technologies is crucial for the success of More Electric Aircraft (MEA), enabling network stability and high-power supply for electrified aviation propulsion. This paper presents a novel adaptive battery protection circuit with self-controlled precharge for versatile load management. The circuit ensures the safe operating area (SOA) of battery cells under all […]
CFP-5310
presentation of a new process applicable to battery recycling that allows to separate the metals and recover them at high purity and high concentration (see attached abstract)
CFP-5316
The oxide-based garnet LLZO (Li7La3Zr2O12) is a promising ceramic separator material for solid-state batteries due to its relatively high ionic conductivity (10-4 – 10-3 mS cm-1), wide electrochemical stability window, stability against lithium metal, and processability in ambient atmosphere. Nevertheless, challenges associated with upscaling the manufacturing process must be addressed, such as reducing manufacturing costs […]
CFP-5304
Stress and strain inhomogeneities in cylindrical lithium-ion battery cells caused by formation and cyclic aging induced swelling have been investigated by a vast number of researchers and have been identified as a cause for inhomogeneous and significantly accelerated battery aging. Among those, one only recently described mechanism is Electrolyte motion induced salt inhomogeneity (EMSI), which […]
CFP-5321
With the growing demand of Battery Electric Vehicles (BEV) new regulations are agreed on to ensure that customers can expect a common standard in regard of the quality and safety of the purchased vehicle. Two noticeable regulations are the EU7 and the CARB regulation. The main focus of these regulations are the prevention of thermal […]
CFP-5320
Many companies are required to keep lithium-ion battery cells in inventory as reserve parts, e.g. for warranty purposes. This can result in long periods of shelf storage, during which cells remain in a resting state at a specific state of charge and ambient temperature for several years without being used. Due to these extended timeframes, […]
CFP-5326
It is important to quickly categorise used batteries in order to determine their end-of-life, explore second-life applications and ensure safe storage and transportation. We have developed the database of battery ageing for such an analysis tool. Li-ion batteries were modified within and outside their specifications to induce possible ageing phenomena. EIS measurements were taken to […]
CFP-5324
In the development of automotive high-voltage batteries, simulations and test bench measurements are essential. Batteries are subjected to time-dependent load profiles to assess their response to operational conditions. Typically, the selection of appropriate inputs is based on rough estimates of how the battery will be used, often utilizing the WLTC homologation or short, self-generated profiles. […]