P2-024
Lithium-ion batteries (LIBs) are the enabling technology for electric mobility and stationary energy storage systems. Conventional battery health metrics such as State of Health (SoH) quantify capacity degradation but provide limited insight into the underlying ageing mechanisms occurring inside the cell. Physics-based degradation indicators, such as Loss of Lithium Inventory (LLI) and Loss of Active […]
P2-055
Thermal runaway (TR) is a critical and catastrophic consequence of lithium-ion battery (LIB) failure. In-situ monitoring of internal critical states during TR is essential for revealing failure mechanisms and supporting early warning. Here, we use high-speed synchrotron X-ray radiography, alongside temperature, voltage, and pressure probes on a 5.2 Ah prismatic LiNi0.5Mn0.3Co0.2O2 (NMC532) LIB under heating-induced […]
P2-099
Thermal runaway poses a major safety concern, and the assessment of cells after such events is challenging, e.g. when post mortem analysis requires deep discharge for health and safety at the testing lab. Conventional methods such as Galvanostatic Intermittent Titration Technique (GITT) and Incremental Capacity Analysis (ICA) provide valuable insights into redox behavior and internal […]
P2-080_Zywolko
Accurate monitoring of thickness changes in lithium-ion batteries during operation is essential for understanding cell swelling and its impact on performance and lifetime. This is particularly relevant for high-energy-density electrode materials such as silicon-rich anodes, which exhibit pronounced volume expansion during cycling. In this work, two in-operando swelling measurement approaches for small-format pouch cells are […]
P3-009
Human societies facing two problems. One, is the increasing of greenhouse gas contributing to the global warming. And the second is oil depletion, especially in European continent. In this context, decarbonization of mobility is on the road and internal combustion engines are replaced by electric vehicles (EVs). But in many aspects, such vehicles are overengineering […]
P1-093
As the world transitions to a renewable energy economy, the need for efficient, sustainable energy storage solutions is becoming increasingly important. Advancements in battery technology that prioritize durability, sustainability, safety, and cost-effectiveness, advancements in battery technology can help to overcome the challenges that lie ahead. Sodium-based batteries (SBBs), which offer a promising alternative to traditional […]
P1-037
Lithium-Sulfur-Batteries (LSBs) have been discussed as one of the most promising post-lithium-ion-battery technologies in literature for the last decade due to their high theoretical specific energy of 2600 Wh/kg. However, in case of liquid LSB-concepts, the actual achievable specific energy is limited to about 400 Wh/kg as high access of electrolyte and other passive materials […]
P2-037_Büscher
For the preliminary evaluation of new active materials, separators, and electrolytes, coin cells are commonly used, as they require only small amounts of material and allow for easier and faster assembly than larger cell formats. However, industrial applications require larger cell formats, such as pouch cells. Interestingly, several studies report a worse performance of coins […]
P1-036
The development of efficient and stable solid electrolytes remains one of the central challenges in realizing high-performance sodium-based solid-state batteries. Among the emerging material classes, mixed-anion compounds have attracted increasing attention, as the deliberate incorporation of multiple anionic species enables fine-tuning of both the structural framework and ion transport properties. In this contribution, we investigate […]
P1-039
For applications that require both high energy densities and a long cycle life with high safety standards from their batteries, lithium-ion batteries (LIBs) containing liquid electrolytes are still the cell chemistry of choice. The capacity limiting component in common LIBs is the lithium metal oxide cathode. The most prominent cathode material used for high energy […]