SisClever process: simultaneous recovery of metals from electronic waste to high purity and high concentration via solvent extraction
Sustainability requires the systematic recycling of materials. The challenge is that waste is usually a mixture of many components. As a result, the treatment of waste streams requires complex and costly processes. At the same time, valuable components that are present in low concentrations in the waste stream are difficult to be economically recycled. Examples […]
ISEA Battery revenue index – towards transparent estimation of trading revenues
Stationary battery storage installations are increasing faster than ever in Germany. Generating revenues with these storages is complex due to multiple possible revenue streams and challenging to quantify. With the ISEA Battery revenue index we present a transparent and simple approach to estimate potential revenues for different storage configurations and markets.
Joint parameter and state estimation – how can we identify SoC and SoH
This study focuses on the development and application of new methods for optimal experimental design to efficiently characterize the aging behavior of lithium-ion batteries (LIBs). Motivated by the need for precise aging models for the design and operational optimization of battery storage systems, the work aims to obtain maximum information about model parameters with minimal […]
Physics-based learning for advanced battery modeling
Lecture Abstract Integrating physics-based and data-driven approaches has emerged as a promising strategy for modelling dynamic systems. Yet, existing works primarily focus on using data-driven surrogates as replacements for physics-based models, often sacrificing accuracy for computational speed and losing critical elements like generalisability, adaptability, and interpretability that are essential for control applications. This lecture introduces […]
Towards Reliable BMS Algorithms: Overcoming Challenges in State Estimation
State estimators are essential for effective battery usage in real-world applications, with ineffective algorithms posing safety risks, user dissatisfaction, and accelerated battery degradation. Developing and validating algorithms for battery management systems (BMS) is a complex process. The analysis of existing literature on estimation methods and algorithm performance reveals different challenges regarding the development and validation […]
Designing a Setup to Study the Influence of Pressure on Solid-State Battery Materials at Electrode Level
This research aims to explain the influence of external pressure on solid-state battery (SSB) materials specifically at the electrode interface. In contrast to traditional liquid electrolyte batteries, SSBs necessitate elevated pressure levels to ensure effective contact between the electrode layers and the solid electrolyte. To facilitate this investigation, an experimental framework was established to assess […]
Multi-analytical characterization of temperature dependent aging mechanisms in commercial Lithium-ion batteries with Si/graphite anodes
The performance and longevity of lithium-ion batteries (LIBs) are significantly influenced by operating conditions such as C-rate and voltage range during cycling. This study investigates the aging mechanisms of LIBs under high-stress conditions, with a specific focus on the differences between aging at high and low C-rates across varying voltage ranges. Using a combination of […]
Multi-analytical characterization of temperature dependent aging mechanisms in commercial Lithium-ion batteries with Si/graphite anodes
The performance and longevity of lithium-ion batteries (LIBs) are significantly influenced by operating conditions such as C-rate and voltage range during cycling. This study investigates the aging mechanisms of LIBs under high-stress conditions, with a specific focus on the differences between aging at high and low C-rates across varying voltage ranges. Using a combination of […]
Multi-analytical characterization of temperature dependent aging mechanisms in commercial Lithium-ion batteries with Si/graphite anodes
The performance and longevity of lithium-ion batteries (LIBs) are significantly influenced by operating conditions such as C-rate and voltage range during cycling. This study investigates the aging mechanisms of LIBs under high-stress conditions, with a specific focus on the differences between aging at high and low C-rates across varying voltage ranges. Using a combination of […]
RLPGen: A method to synthetize Representative Battery Load Profiles
Automotive high-voltage batteries react sensitively to the heterogeneity of stress factor combinations. For their development, representative load profiles are derived, wherefore various methods exist. Besides velocity-based cycles, literature also proposes the generation of electrical power trajectories. However, research studies lack a universal framework to create and optimize multivariate battery time series profiles directly from measured […]