P5-079_Sozak
All-solid-state batteries (ASSBs) may counteract the limitations of well-established lithium-ion batteries. ASSBs utilize a solid electrolyte (SE) instead of a liquid one, allowing for the use of high-capacity alkali metals like lithium as anode without additives providing higher energy densities. However, liquid electrolytes can penetrate to electrode materials yielding increased wettability. Herein, a critical challenge […]
P2-043
This work presents an improved pulse-fitting method for the parameter extraction of equivalent circuit models from pulse tests using an evolutionary algorithm (Differential evolution). The focal point of the work is the improvement of existing battery modelling by utilizing global instead of local optimization for the pulse-fitting, and the usage of high-order models. The n-RC […]
P1-045
Lithium sulfur (Li-S) batteries are a promising candidate for next generation batteries because they offer an up to eight times higher energy density of 2600 Wh/kg than conventional lithium ion batteries (300 Wh/kg). In addition sulfur is an abundant, low-cost and non-critical material elevating many of the problems of current lithium ion batteries. However, Li-S […]
P5-054
Due to the rapidly increasing demand for lithium-ion batteries (LIB) it is crucial to lower the need of production energy per kWh of battery capacity produced. One of the most energy consuming process steps is the drying of wet-coated electrodes. Eliminating this step offers a high potential to improve carbon footprint and sustainability as well […]
P2-051
To satisfy the ever growing demand for energy efficiency and pollution reduction, lithium ion batteries have attracted widespread attention as a mainstream option for large-scale energy storage in electronics and electric vehicles. However, the voltage hysteresis, widely observed during the battery charging and discharging, present a key challenge for further development and application of these […]
P2-067
To develop the most efficient energy storage systems possible, it is important to understand the behavior of battery cells and be able to push the cell to its limits. While commonly used methods are informative, they often provide only fragmentary insights into how the cell works. To address this limitation, an integrated approach of different […]
P2-006
Calendar aging of lithium-ion batteries is mainly driven by cell voltage and temperature. The aging of the cell is attributed to mechanisms such as SEI formation, electrolyte dissolution on the cathode or even reversible shuttle reaction that lead to a voltage decay. To keep the cell at a desired voltage and avoid the strong influence […]
P1-026
Polymer-based lithium metal batteries are among the most promising next-generation systems owing to their high specific energy and operational safety. Despite significant progress in this battery field in recent years, relevant key challenges remain to be solved. Inhomogeneous and irreversible lithium metal deposition as well as volume expansion upon cell operation result in continuous interfacial […]
P4-005
The trend towards shorter development times for vehicles and components necessitates new approaches in design and production. Traditionally, products were designed on drawing boards and later in CAD software, then tested through prototypes. However, advancements in computing power allow for fewer prototypes through simulations. Another approach is integrating computer support and AI from the outset, […]
P2-030
The increasing adoption of lithium-ion battery cells in contemporary energy storage applications has raised concerns regarding their potential hazards. Ensuring the safety of compact and modern energy storage systems over their operational lifespans necessitates precise and dependable monitoring techniques. This research introduces a novel method for the cell-specific surveillance of prismatic lithium-ion cells, with a […]