P1-034
Molecular Dynamics simulations can be very useful in optimizing battery electrolytes, being cheaper than costly experiments as well as providing a more atomistic understanding of the electrolyte system. Unfortunately, the calculation of the ionic conductivity and transference numbers, which are important for electrolyte screening, require longer simulations for sufficient statistics. This project aims to circumvent […]
P2-036
To fill the current research gap in practical lifetime prediction for sodium-ion battery cells (SIB), we utilized float current analysis (FCA) which was already successfully applied to many lithium-ion cells. FCA evaluates the recharge current that is required to maintain the cell voltage at a defined value after all reversible effects have decayed. This recharge […]
P5-020
The rapid expansion of consumer electronics, electric vehicles, and stationary energy storage systems has led to a continuous increase in both production waste and end-of-life lithium-ion batteries (LIBs). Efficient recycling is crucial to minimize environmental impacts and ensure the sustainable supply of critical raw materials. Among various recycling strategies, direct recycling has emerged as a […]
P2-093
A scalable, spatially resolving isoperibolic battery calorimeter (IBC) with high sensitivity and low noise Stefan M. Sarge Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, Germany With the ever-increasing number of electrochemically active materials used in modern high performance high energy batteries, there is always a desire to study their thermodynamic states during charging/discharging under various conditions […]
P4-023
The demand for ever shorter charging times for electric vehicles is currently one of the major challenges the automotive industry faces. The maximum achievable charging performance of the battery is limited by the physical properties of the battery cells. Accurate knowledge of the internal cell states offers the opportunity to operate Li-ion cells as close […]
P4-049
Shared light mobility has recently become a billion € industry with ~260 million e-scooter rides taken in Europe 2024 alone. Actors such as Lime (US), Dott (DE), and Voi (SE) have operated shared e-scooter (SES) & e-bike fleets for >7 years, and with these businesses becoming profitable, the use is likely to further expand. Given […]
P1-030
Silicon is of significant interest for high-energy-density lithium ion batteries (LIB) required for electric vehicle applications but is affected by rapid capacity decay, which is related to large volume changes upon (de-)lithiation. Despite several strategies to overcome the limited lifetime such as nano-sized silicon, the use of silicon oxides instead of (metallurgic) silicon, silicon/graphite composite […]
P3-012
The accurate estimation of battery states like State of Charge (SOC) is a crucial task for the battery management system (BMS) of a battery electric vehicle (BEV) since safe and efficient vehicle operation depends on this. To assure a reliable estimation means to assess and adjust the algorithms responsible for the estimation under real driving […]
P2-062_Gorji
Flexible batteries are becoming increasingly important due to the rapid growth of wearable electronics, soft robotics, and implantable biomedical devices, as they combine high energy density with mechanical flexibility. This study focuses on their design and performance under mechanical deformation, showing that bending creates a porosity gradient across the electrode thickness, with lower porosity on […]
P1-045
This study investigates the ionic conductivity of a mixture comprising 2-adamantanone and lithium bis(trifluoromethanesulfonyl)imide, with focus on the impact of temperature and residual tetrahydrofuran. Previous investigations have shown that the plastic crystal 2-adamantanone, when paired with lithium bis(trifluoromethanesulfonyl)imide, exhibits an ionic conductivity of 1.2 × 10-4 S/cm and a considerable oxidation potential of 5.1 V. […]