P4-013
In the dynamic landscape of battery development, the quest for improved energy storage and efficiency has become paramount. The contemporary energy transition, coupled with growing demands for electric vehicles, renewable energy sources, and portable electronic devices, has underscored the critical role that batteries play in our modern world. To navigate this challenging terrain and harness […]
P1-054
E-magy produces a unique porous Si powder that can be used in Silicon-dominant (80-90%) Li-ion battery anodes. Although the powder has a D50 of well over 10 microns, there is no obvious fracture of even the largest particles after cycling, thus overcoming the most important limitation of Si in practical applications. This is achieved by […]
P4-016
The extension of traction batteries of High Voltage Systems with supercapacitors is regularly discussed as a possibility to increase the lifetime of the lithium-ion cells as well as the performance of the storage systems. As part of the R&D project SukoBa, carried out by AVL together with the project partners Fraunhofer Institute for Energy Economics […]
P4-011_He
Lithium-ion batteries are widely utilized in electric transportation because of their high energy density. However, certain e-mobility applications lack active cooling systems and rely on low-cost processors. This poses challenges for optimizing fast charging and implementing complex optimization algorithms, given the limitations of the cooling system and slower processors. In this study, a fast-charging optimization […]
P2-014
Our work presents a convenient way to capture inhomogeneous lithium distribution along the in-plane dimension of graphite electrodes. The methodology presented determines post-mortem the different grades of lithiation (or state-of-charge, SOC) spatially via diffusive reflectance spectroscopy (DRS). To create a DRS-spectra to SOC map in a first step, graphite active material is harvested from a […]
P5-041
Understanding and controlling the physical properties of battery materials, particularly cathodes and anodes, is crucial for enhancing performance and sustainability in energy storage solutions. This study investigates how to reliably assess important parameters such as particle size and shape using Dynamic Image Analysis (DIA) and Laser Diffraction techniques. Additionally, a correlation between particle size and […]
P3-040
Summary: Diehl Aerospace GmbH develops and produces emergency power systems and battery packs for aircrafts. Depending on certification requirements, nickel-cadmium- (NiCd), lithium cobalt oxide (LCO) or lithium iron phosphate (LFP) cells are used. They are monitored by an appropriate battery management system (BMS). Besides the functional safety, the determination of the remaining capacity, i.e. State […]
P2-079
In Li-ion batteries, ion diffusion kinetics represents a limitation to combine high power and high energy. To bypass this limitation, textured electrodes have been demonstrated to increase the active surface, decrease the ion tortuosity and accelerate the electrolyte wetting. Amongst the structuring technologies, ultrashort pulse laser processing may represent the key option enabling at the […]
P2-077_Katırcı
In this study, EIS measurements of commercially available Tekcell (Vitzrocell) Li/SOCl2 batteries and Li/SOCl2/SO2Cl2 mixture batteries were investigated. Equivalent circuit fits were done on the acquired spectra. Critical battery parameters were analyzed with respect to state-of-charge. A Kramers-Kronig (KK) analysis of the batteries was also performed, and residuals of the fits were evaluated. Thereafter, the […]
P5-008
As a result of the increasing demand for lithium-ion batteries (LIB), production capacities in Germany and around the world will be greatly expanded over the next few years. In order to reduce the CO2 emissions of a lithium-ion battery over its entire life cycle, the current high energy requirements of battery cell production must be […]