P4-014
3D electrode architectures not only allow a rapid and homogeneous wetting of the electrodes with liquid electrolyte by choosing appropriate capillary patterns, but can also enhance electrochemical properties such as high-rate capability and cell lifetime, especially when the cells are operated at elevated C-rates. Recently, various electrode designs based on lines, grids, holes, or hexagonal […]
P5-041
Battery field data collection enables car manufacturers to monitor battery aging throughout the entire life cycle. However, to fully utilize the potential of this data, it is essential to identify anomalous aging estimates, as existing methods have not yet demonstrated the ability to effectively distinguish outliers from nominal batteries in real-world applications. In this work, […]
P2-053
Lithium-ion batteries are critical to modern technologies and have experienced significant growth in recent years. This increasing usage underscores the need for efficient diagnostic methods, particularly for real-time monitoring during operation. An intuitive method for investigating internal processes, as reflected by the impedance of the cell, is the distribution of relaxation times (DRT). Often, the […]
P5-067
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. One main focus of these regulations are the service lifetime requirements […]
P2-037
With the rapid growth of the electric vehicle industry, battery technology has received significant attention and research interest. To date, lithium-ion batteries (LIBs) remain the dominant choice for most applications due to their high energy/power density, efficiency, long cycle life, and relatively low production costs. However, lithium-ion technology also faces inherent limitations, with long charging […]
P3-075
Multilayer electrodes have emerged as a promising approach to enhance the electrochemical performance of Li-ion batteries. One of the key advantages of multilayer electrodes is their ability to mitigate the specific limitations that typically occur in single-layer cathodes. Using multilayer electrodes with graded porosity both energy and power density can be enhanced. Here in we […]
P5-069_Ayayda
Lithium-ion batteries play a vital role in modern energy storage systems, being widely utilized in devices such as mobile phones, electric vehicles, and stationary energy units. One of the critical challenges with their use is the thermal runaway (TR), typically characterized by a sharp increase in internal pressure. A thorough understanding and accurate prediction of […]
P2-057
Lithium-ion battery technology plays a crucial role in realizing a sustainable energy future. With their high energy density, long service life, and fast charging capacity, lithium-ion batteries are essential for a wide range of applications, from electric vehicles to stationary energy storage systems. However, for the electrification of vehicles, there are still some challenges to […]
P2-061
To assure optimal operations of the traction battery at all times and further provide reliable prediction of the remaining range, the exact determination of the state of charge (SoC) is key. The increased incorporation of cells with lithium iron phosphate (LFP) cathodes poses critical challenges for conventional SoC estimation within the battery management unit (BMU) […]
P2-039
Silicon is a promising anode material for lithium-ion batteries due to its high capacity, but it exhibits significant voltage hysteresis during lithiation and delithiation. This work aims to develop a physics-based model for silicon voltage hysteresis in PyBaMM, eliminating the reliance on empirical open-circuit potential (OCP) fits that lack generalizability and fail to capture phase […]