Monte Carlo method for assessing the uncertainty in battery models – measurement accuracy and fitting process limiting design processes and battery management systems
Equivalent circuit models (ECMs) are used widely in the battery and vehicle industry today in battery management systems or for battery system simulation. Low accuracy can cost performance, reduce accuracy in state estimation and influence further parameters in a negative manner. Therefore, one places accuracy goals on the models which are developed. But of course, […]
Cloud-based Battery Analytics – Big data and data science improving Safety, and State of Health (SoH).
The battery is a crucial element in electric vehicles, holding substantial value for both manufacturers and mobility providers. To balance various demands such as performance, cost, range, and most importantly, the lifespan and safety of the battery, intelligent monitoring and management techniques are essential. In this presentation, we introduce artificial intelligence (AI) methodologies within the […]
Simulating the Impact of Electrolyte Motion on Li-Ion Battery Performance
In this lecture, the audience will gain a comprehensive understanding of the origin and significance of electrolyte flow within lithium-ion batteries. Beginning with a clear physical explanation, the fundamental mechanisms that drive electrolyte movement will be introduced, providing attendees with a solid conceptual foundation. Following this explanation, the lecture will detail how electrolyte flow can […]
Model-Based, Multi-Criteria Optimizing Energy and String Management Concepts for Large-Scale Battery Storage Systems – the BMSmart project
The presentation summarizes the main objectives, innovations and results of the BMSmart project. These include measures to increase the energy efficiency, cost-effectiveness and lifetime of large-scale battery storage systems by using distributed battery condition monitoring with artificial intelligence, a generic structured model from cell to system level, and model-based, multi-criteria optimizing energy and string management […]
POLIDEMO: an innovative mechanical-electrochemical model for lithium-ion batteries degradation
It is widely known that lithium-ion batteries (LIBs) degrade and lose performance during usage. Accurately predicting LIBs aging is essential for optimizing design and usage, and enabling second-life applications and recycling. The main causes of LIBs performance decay are mechanical and electrochemical degradations. During battery operation, lithium ions (de)intercalate into the active material particles constituting […]
Achieving Stable Cycling Performance of Silicon Anode for Lithium-Ion Batteries by Optimized Electrochemical Pre-Lithiation
Silicon (Si) as an anode active material for lithium-ion batteries (LIBs) has considerably high theoretical specific capacity of 3579 mAh/g. However, a major drawback of Si anodes is their substantial volume expansion (∼300%) during lithiation, leading to significant mechanical stress, electrode pulverization, and unstable solid electrolyte interphase (SEI) formation. These challenges result in rapid capacity […]
Achieving Stable Cycling Performance of Silicon Anode for Lithium-Ion Batteries by Optimized Electrochemical Pre-Lithiation
Silicon (Si) as an anode active material for lithium-ion batteries (LIBs) has considerably high theoretical specific capacity of 3579 mAh/g. However, a major drawback of Si anodes is their substantial volume expansion (∼300%) during lithiation, leading to significant mechanical stress, electrode pulverization, and unstable solid electrolyte interphase (SEI) formation. These challenges result in rapid capacity […]
Solvent-free direct recycling of NMC cathode material from end-of-life Li-ion batteries
Since the use of lithium-ion batteries (LIBs) as powering units in all different sorts of electric and electronic applications is increasing steadily, seeking efficient solutions for end-of-life (EoL) LIBs waste management is becoming urgent need. Consequently, recycling EoL LIBs is critical to mitigate the environmental impacts and can be a great opportunity to recover and […]
Lithium-ion Battery Diagnostics with Mechanical Measurements
During operation, lithium-ion batteries experience a mechanical deformation due to the strain induced by the electrochemical processes, involving the interaction of lithium ions with the crystal structure of the active material of the electrodes. Deformation at the atomic scale influences the overall structural deformation of the battery at the macroscopic level. Measurements of this macroscopic […]
Coupling of offshore & offgrid wind power & PtX-processes, supported by a MWh-scale battery for safety, stand-by energy & PtX-process support
Wind & solar power generate daily, regional and seasonal power surpluses for example in places of predominant energy production, such as the North Sea. This surplus is either sold to neighboring countries significantly below market price or curtailed by the power grid operators to ensure grid stability. Thus, this energy is economically or factually wasted […]