CFP2022-908
The formation of lithium-ion batteries is an important and time-consuming process step in battery production. Good formation can positively influence cell properties and save process time. Within the scope of the investigations, tests will be carried out on special three-electrode cells. Among other things, the effects of the separators and electrolyte quantities used will be […]
CFP2022-892
To ensure the safe and stable operation of lithium-ion batteries in battery energy storage systems (BESS), the power/current is de-rated to prevent the battery from going outside the safe operating range. Most derating strategies use static limits for battery current, voltage, temperature and state-of-charge, and do not account for the complexity of battery degradation. Progress […]
CFP2022-907
The electrochemical and transport processes within a lithium-ion battery lead to a non-linear and highly dynamic current/voltage behavior [1]. Understanding this behavior is a requirement for system design, operation control and state diagnosis. The combination of experiments and modeling allows a combined empirical and knowledge-based insight. We present the experimental characterization as well as the […]
CFP2022-891
The layer thickness of batteries is measured on the outer protective insulation layer and the internal electrodes. All measurements must be carried out at high speed and accuracy with maximum stability. Ideally, the test systems can measure contact-free, recalibration-free and in motion. In this lecture, novel sensor concepts are presented that meet the requirements of […]
CFP2022-906
Rechargeable multivalent ion batteries have attracted significant technical and scientific interests, especially aqueous zinc ion batteries, due to their low cost and high safety.1 Layered V3O7·H2O is a promising material due to easy intercalation of doubly charged Zn2+ ions. This is due to the special structure with extended hydrogen bonding between VO6 octahedrons and VO5 […]
CFP2022-887
Batteries are energy storage devices that are present in several applications, such as: cell phones, notebooks, electric vehicles, in renewable energy generation systems. There is a strong interest from the different actors in the battery supply chain who are interested in knowing the entire history of batteries, avoiding battery tampering, changing components and cells without […]
CFP2022-905
HDT – KFZ (Stand: 06.10.2021) www.hdt.de/fahrzeugelektronik www.hdt.de/automotive 2. Halbjahr 2021 Seminar (online Teilnahme möglich) Ladeinfrastruktur für E-Fahrzeuge planen, errichten und betreiben am 06.-07.10.2021 in Essen www.hdt.de/W-H010-10-641-1 Online-Seminar Hochvolt-Bordnetz in Elektro- und Hybridfahrzeugen Basierend auf ISO PAS 19295 und ISO DIS 21498 am 07.10.2021 www.hdt.de/W-VA21-00141 Seminar (online Teilnahme möglich) Crashanforderungen und Sicherheitskonzepte für Elektrofahrzeuge Sicherheitsanforderungen, Unfall-, […]
CFP2022-904
Due to the steadily increasing expectations of end users on the range, longevity and ecological compatibility of lithium-ion battery systems, intensive work is being done on the development of new material systems for lithium-ion batteries. Among the most promising approaches are both improved liquid electrolyte systems (e.g. silicon composites or sulfur cathodes) and solid-state systems […]
CFP2022-903
We present several approaches to produce electrodes and separators by extrusion. State-of-the-art processes for electrode production of lithium-ion batteries start with the preparation of low viscous slurries in a batch process. The slurry will then be coated via a slot die onto thin metal foils. The coating is subsequently dried to remove the solvent and […]
CFP2022-902
Lithium-ion batteries (LIBs) do not only dominate the small format battery market for portable electronic devices but have also been successfully implemented as the technology of choice for electric vehicles. However, for successful consumer acceptance and broad market penetration of electric vehicles, further improvements of LIBs in terms of energy density and cost along are […]