P3-019
In this study, we present a JMAK-based model to analyze lithium plating in lithium-ion batteries. The onset of plating is identified by a bell-shaped curve during the constant-voltage charging phase. By fitting the model to this curve, it analyzes plating quantity, growth rate, and dimensionality, providing key insights into plating morphology for different charging conditions. […]
P3-065
Modules composed of parallel-connected cells are employed as the building block of battery packs in order to achieve an increase in output current and system reliability. Given that the current distribution among cells is not known beforehand, standard electrochemical models are not well conditioned for the simulation of parallel-connected cells. Additionally, interconnection and contact resistances, […]
P5-038_Deng
The design and optimization of battery cell production require advanced manufacturing technology with knowledge-based parameter design. The variety of battery cell formats and configurations requires greater flexibility in production. Cell finishing, as the final stage of battery cell production, faces the challenge of adapting to both mechanical design and internal cell characteristics, while reducing production […]
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 […]