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 […]
P1-008_Wu
Sodium-ion batteries (SIBs) are promising for large-scale energy storage, with hard carbon (HC) as a key anode material. Zeolitic imidazolate frameworks (ZIFs), particularly ZIF-8, are attractive HC precursors due to their tunable structure and porosity. However, conventional ZIF-8 synthesis methods are solvent-intensive, time-consuming, and difficult to scale. We aim to develop a scalable, eco-friendly synthesis […]
P1-105
In summary, this study demonstrates clear differences in Li metal protection ability between a standard organic carbonate-based formulation (CCE) and a baseline localized high-concentration electrolyte (LHCE) via complementary operando and ex situ techniques. In particular, ellipsometry combined with a modified electrochemical cell setup provides real-time, quantitative tracking of the SEI growth, allowing for direct correlation […]
P1-065_Hebel
O3-type layered oxides are promising cathode materials for sodium-ion batteries because of their low cost and high energy density. Nevertheless, beside the capacity degradation during extended cycling, the processability at atmosphere remains a major challenge. In this study, different particle coating strategies are presented to mitigate these issues. In addition, the coating strategies are demonstrated […]
P4-004
The rise of electric vehicles will create millions of retired lithium-ion batteries, requiring fast diagnostics for second-life use. This work proposes a cost-effective electrochemical impedance spectroscopy (EIS) method that uses a broadband pseudo-random binary sequence (PRBS) and time-resolved frequency analysis, enabling module-level EIS measurements from 10 Hz down to 10 mHz with a standard battery […]
P1-091
The characterisation of electrode slurries for lithium-ion batteries (LIBs) is crucial for ensuring stable manufacturing processes and consistent electrode quality. Producing high quality electrode slurries becomes particularly relevant when recycled active materials are used which is likely to impact the properties of the slurry. Rheology is currently used in slurry manufacturing primarily as a quality […]
P1-083
Functionalized Benzo-Crown Ether-Based Additives for Sodium Ion Electrolytes: Role of Nitrile and Naphthalene Groups Eren Temur1, Christian Wölke1, Martin Winter1, Isidora Cekic-Laskovic1 1 Forschungszentrum Jülich GmbH, Helmholtz-Institute Münster (IMD-4), Corrensstraße 48, 48149 Münster, Germany Sodium-ion batteries represent a possible alternative to the lithium-based batteries, which are already widely used in the mobility and energy industry. […]
P4-007
This work introduces a prompt-based framework to address the data bottleneck in battery research where high data volumes typically require rare expertise in electrochemistry and programming. By using an LLM-driven agent orchestrated via Agno, the system translates natural language into executable pipelines for querying live databases. A dynamic knowledge base provides essential laboratory context, allowing […]
P1-025
Silicon possesses the capability to replace graphite as the standard active material for negative electrodes in lithium-ion-batteries with high energy density. With its over tenfold higher specific capacity compared to graphite, its abundancy in the earth’s crust and its environmental friendliness it has unequivocal benefits. The use of silicon is however complicated by its large […]
P2-078
Lithium growth involves coupled structural and mechanical evolution that remains difficult to probe non-destructively during cycling, especially at buried interfaces. Here, we establish an operando platform by integrating guided-wave ultrasound with an optically accessible lithium symmetric glass cell, enabling continuous tracking of lithium evolution during plating and stripping. Two distinct ultrasonic observables are identified with […]