P1-035
The demand for efficient post-lithium batteries has steadily increased in recent years. A solution is the utilization of Sodium Ion Batteries (SIBs), as sodium is not only less toxic than lithium but also significantly cheaper. Known compounds for SIB cathodes include layer oxides, polyanionic compounds, or Prussian Blue analogs. So far, it has not been […]
P4-008
On the path to decarbonizing road transport, battery electric commercial vehicles will play a significant role. An important aspect in the development of long-haul trucks is the battery life and for that, accurate prediction of the battery state of health is essential. In the present study, a modular vehicle simulation model for a battery electric […]
P1-091_LIU
The polysulfide shuttle effect is a significant challenge for the operation of lithium-sulfur batteries, causing the battery’s overall performance and capacity to decrease over time. In the present study, we exploited random copolymer single ion conductors (XPEGMA-Li) combined with TEGDME (tetraethylene glycol dimethyl ether, G4) as quasi-solid polymer electrolytes. The PEGMA backbone provides the electrolyte’s […]
P3-037
The phenomenon of thermal runaway in lithium-ion batteries underscores a pressing safety concern. In response, we have engineered a unique spherical test bench to facilitate experiments in this domain. Given the inherent flammability of gases generated during thermal runaway, the prerequisite for inertizing the test bench before conducting experiments becomes evident. In this poster, we […]
P2-055
Using acoustic emission (AE) measurements enables to indirectly obtain information about degradation processes within a material. By placing a piezoelectric sensor outside a battery test cell, acoustic waves emitted from irreversible process within can be converted into a measurable voltage signal. These processes can be e. g., gas evolution or crack formation. The AE technique […]
P2-070
The increasing popularity of electric vehicles and the demand for efficient storage of energy from renewable sources has led to the recognition of lithium ion batteries (LiBs) as a potent solution. Therefore, the investigation of aging behaviour and safety risks is crucial. In state-of-the-art LiBs graphite is used as negative electrode material and lithium metal […]
P2-038
Formation is one of the most important and time-consuming process step in the production of lithium-ion batteries. During the first charge of the formation process the decomposition layers on the electrodes, the solid electrolyte interphase (SEI) on the negative (N) electrode and the cathode electrolyte interphase (CEI) on the positive (P) electrode, are formed. The […]
P1-088
This research aims to explore the impact of varying content of silicon oxide (SiOx) on the performance and aging process of lithium-ion cells. Extensive investigations were conducted, including the analysis of charge and discharge curves, changes in thickness, degradation of the electrolyte, gas evolution, and chemical analysis of cells with different proportions of silicon oxide […]
P3-031
Investigating the temperature behaviour of battery cells has become an important part of today’s research and development. This is because the temperature profile of a cell changes during cycling after being aged in either a cyclic or a calendaric way. By using the diagnostic technique DTV, which uses measurements that can be done in-operando, new […]
P5-061
With today’s product requirements, cost pressure and increasing environmental awareness, the conservation of resources is a necessity for material-efficient, resource-conserving, and time-, quality- and performance-optimized battery production. The initial drying process of the coating can be identified as a significant cost and emission source due to high energy demands resulting from inefficiencies and heat losses. […]