P2-012
Understanding battery degradation is essential for accurate health diagnostics and long-term performance prediction. Degradation mode analysis (DMA), a non-destructive technique, leverages the voltage response, which reflects the cell’s thermodynamic equilibrium, to dissect aging mechanisms . Since DMA relies on accurate thermodynamic data, open circuit voltage (OCV) measurements provide the best representation of the cell’s intrinsic […]
P1-056
Compared to other SSB technologies, polymer-based systems offer high flexibility, low density, and cost-effectiveness, which makes them particularly appealing for scalable industrial production. However, challenges such as low ionic conductivity and high cycling temperatures must be addressed. A promising approach to overcome these challenges is the development of new polymer electrolytes, like Bt-PCL. This study […]
P5_044
With the rapid expansion of large-format battery production for electric vehicles (EVs), the inevitable result will be a growing number of batteries reaching the end of their useful life. Strategies for handling these batteries are already being developed, with two primary approaches: repurposing for secondary use or recycling. As EU legislation moves toward requiring higher […]
P5_044
With the rapid expansion of large-format battery production for electric vehicles (EVs), the inevitable result will be a growing number of batteries reaching the end of their useful life. Strategies for handling these batteries are already being developed, with two primary approaches: repurposing for secondary use or recycling. As EU legislation moves toward requiring higher […]
P5-002
The quickest and simplest way to benchmark cells against one another is through the comparison of datasheets and rapid standardised testing of cells. However, typical datasheets provide information based on cells tested under constant current load profiles in controlled ambient temperature. These test conditions are unrepresentative of most real applications. This work selects and benchmarks […]
P1-032_Wu
Unlike lithium-ion batteries (LIBs), where crystalline graphite is commonly used as the negative electrode material, disordered carbons are regarded as more promising for sodium-ion batteries (SIBs). However, further advances towards better reversibility and higher specific capacity are still needed to match or even exceed the properties of graphite in LIBs. The main challenge is the […]
P5-050_Siu
Traditional quantification of cell degradation as “capacity loss” represents a simple and well-established means to estimate the lifetime of a cell. This singular parameter is unable to capture the combination of complex degradation mechanisms working beneath the surface. Physics based models are developed to accurately simulate these interactions and requires correspondingly numerous parameters. Degradation Mode […]
P5-052
Silicon shows promise as a next generation lithium-ion battery anode due to its high theoretical capacity (3579 mAh/g). Volume expansion during cycling, subsequent fracturing and pulverisation of the coating, and continuous solid-electrolyte interface (SEI) formation, limit its commercial viability. Investigated solutions to improve stability on the material level include decreasing the Si particle size to […]
P1-039_Lyu
The B³ (Batterie-Bildungsnetzwerk Bayern) project aims to support companies involved in the battery ecosystem as they navigate the transformation towards electromobility, thereby securing employment in Bavaria. The initiative offers free educational programs tailored along the battery value chain, including modular basic training, work-process-oriented qualification concepts, and qualification for company trainers. It focuses on developing customized […]
P2-035
Electrode/electrolyte interfaces largely determine the performance of batteries. A fundamental molecular understanding of the interfacial electrolyte structure and the evolution of interphases is lacking. Vibrational spectroscopy offers molecular insights into the electrolyte. Raman and infrared (IR) spectroscopy probe the bulk of the electrolyte. Vibrational sum frequency generation (SFG) spectroscopy, with its intrinsic surface specificity, enables […]