Opportunities for online diagnostics of safety critical ageing conditions: What about OCV-ICA?
Li-ion batteries are more prone to fires than other battery technologies due to their inherent higher energy density as well as the flammability of especially electrode materials, separator, and electrolyte solvents. Ageing and degradation can contribute to considerably decrease the safety of a Li-ion battery, but the exact impact from ageing on safety of battery […]
The Rolling Intrinsic Strategy in High-Frequency Intraday Electricity Trading for a Battery as a Dynamic Program
Maximizing revenue for grid-scale battery energy storage systems in continuous intraday electricity markets requires strategies that are able to seize trading opportunities as soon as new information arrives. This lecture introduces and evaluates an automated high-frequency trading strategy for battery energy storage systems trading on the intraday market for power while explicitly considering the dynamics […]
Unveiling Behavioral Patterns in BEV Operation
The service lifetime of traction batteries of Battery Electric Vehicles (BEVs) is significant for the adoption of BEVs in the market. Many customers are afraid of the longevity of the battery and hesitate to buy a new vehicle. Therefore, in the near future new regulations will come into force to establish a common standard across […]
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 […]
The Rolling Intrinsic Strategy in High-Frequency Intraday Electricity Trading for a Battery as a Dynamic Program
Maximizing revenue for grid-scale battery energy storage systems in continuous intraday electricity markets requires strategies that are able to seize trading opportunities as soon as new information arrives. This lecture introduces and evaluates an automated high-frequency trading strategy for battery energy storage systems trading on the intraday market for power while explicitly considering the dynamics […]
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 […]
Characterisation of structural and chemical changes from the macroscopic to the nanoscopic scale of Li-ion batteries for a battery ageing database
It is important to quickly categorise used batteries in order to determine their end-of-life, explore second-life applications and ensure safe storage and transportation. We have developed the database of battery ageing for such an analysis tool. Li-ion batteries were modified within and outside their specifications to induce possible ageing phenomena. EIS measurements were taken to […]
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.