Recycling of electrode production scrap: Development of dry, solvent-based and thermal mechanical processes for direct recycling
The production of electrodes and cells for lithium-ion batteries (LIBs) accounts for a large proportion of the energy and materials used in the lifecycle of a battery. In addition, the ramp-up phase of a gigafactory in particular is associated with significant amounts of production scrap, which is in principle suitable for direct recycling as the […]
Enhancing battery safety in Sodium-Ion Batteries: Introduction of a novel additive to suppress sodium plating and improve Lifespan
The electrolyte plays a crucial role in improving key performance indicators (KPIs) such as energy efficiency, cost, safety and lifespan of a sodium-ion battery (SIB). Layered oxides represent a particularly promising cathode active material although they present certain challenges and limitations at high cut-off voltages, which are necessary to achieve a high energy throughput. Adjusting […]
10 Years of Uninterrupted Shelf Storage: How Long-Term Calendar Aging Affects the Performance of Commercial LFP/C Cells
Many companies are required to keep lithium-ion battery cells in inventory as reserve parts, e.g. for warranty purposes. This can result in long periods of shelf storage, during which cells remain in a resting state at a specific state of charge and ambient temperature for several years without being used. Due to these extended timeframes, […]
10 Years of Uninterrupted Shelf Storage: How Long-Term Calendar Aging Affects the Performance of Commercial LFP/C Cells
Many companies are required to keep lithium-ion battery cells in inventory as reserve parts, e.g. for warranty purposes. This can result in long periods of shelf storage, during which cells remain in a resting state at a specific state of charge and ambient temperature for several years without being used. Due to these extended timeframes, […]
Investigation of a charging anomaly in aged commercial NCA / C-Si lithium-ion cells
Lithium-ion batteries are a key technology for the global transition to green energy. However, ensuring the safety of these batteries is essential for widespread adoption. Although the technology is safe and becoming safer, the exponential growth of the market has led to increased incident numbers. Of particular interest is the safety of aged lithium-ion cells, […]
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 […]
Sustainable Lithium Iron Phosphate (LFP) Battery Recycling via Hydrometallurgical Water Leaching and Precipitation
The rapid expansion of lithium iron phosphate (LFP) battery adoption underlines the urgent need for sustainable recycling solutions that align with circular economy principles. This lecture presents an innovative hydrometallurgical process for recovering high-purity lithium carbonates from pyrolyzed LFP black mass through optimized pH 2 water leaching, achieving 95% lithium extraction efficiency while selectively retaining […]
10 Years of Uninterrupted Shelf Storage: How Long-Term Calendar Aging Affects the Performance of Commercial LFP/C Cells
Many companies are required to keep lithium-ion battery cells in inventory as reserve parts, e.g. for warranty purposes. This can result in long periods of shelf storage, during which cells remain in a resting state at a specific state of charge and ambient temperature for several years without being used. Due to these extended timeframes, […]
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 […]
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 […]