P1-008
Layered sodium transition metal oxides are under ongoing investigation as cathode active materials for sodium ion batteries. Among the wide variety of transition metal compositions, sodium contents and – closely linked – different crystal structures, we focus on NaFeMnMNiO (M = Mg or Zn) and investigate the effects of Mg/Zn-doping on the electrochemical performance and […]
P1-061
Sulfur is a promising cathode material for high-energy cells due to its abundance and high specific capacity (1675 mAh/g). However, its use has challenges. Sulfur undergoes a conversion reaction during charge and discharge, forming soluble polysulfides that can cause side reactions and active material loss. Additionally, sulfur is electrically insulating, requiring a significant amount of […]
P2-006
Determining half-cell materials in lithium-ion batteries is usually expensive, time-consuming, and destructive. Traditional methods require opening cells to extract active materials for analysis. This software enables non-destructive identification of active materials and stoichiometric properties, providing a free and accessible tool for researchers and engineers. The approach uses a database of half-cell measurements from literature and […]
P2-004
Sodium-ion batteries (SIBs) have recently gained significant attention as a cost-effective and sustainable alternative to lithium-ion batteries for large-scale energy storage applications and battery-electric vehicles. With their ability to be fully discharged to 0 V, they allow much safer handling and transport. The reversibility of such a complete discharge is, however, debated as the solid […]
P5-056
Sodium-ion batteries (SIBs) open up new perspectives for sustainable energy storage. How-ever, to fully leverage their potential, it is crucial to gain a precise understanding of their aging mechanisms and develop accurate lifetime prediction models. This research focuses on the aging data of 81 commercial sodium-ion cells manufactured by Shenzhen Electronics Co. Ltd., subjected to […]
P1-069
The performance, safety, and reliability of lithium-ion (Li-ion) batteries are heavily influenced by the mechanical properties of their constituent materials. As battery technologies advance to meet the growing demands for higher energy densities and diverse applications—including electric vehicles, portable electronics, and renewable energy storage—understanding the micromechanical behaviour of key battery components is essential. This study […]
P1-054
The Bipolar Plate (BPP) is a central component of the stack, as it separates the single cells hydraulically, but conducts electrons from one electrolyte compartment to the other. The BPP is therefore found twice within one single-cell-configuration. This study aims to identify the optimal commercially available BPP product for application in rather small (e.g. 2 […]
P2-052
The temperature of batteries plays a critical role in their safe operation, performance and lifetime. To design and operate a thermal management system that keeps batteries in the optimal temperature range precise thermal models are necessary which compute the temperature of the cells. To facilitate the thermal modeling of pouch cells and pouch cell modules, […]
P3-067
As the number of vehicles continues to grow, more batteries become available for recycling and reuse. Many of these batteries still have significant capacity, making them well-suited for second-life applications, such as energy storage in photovoltaic systems or managing peak energy demand. Typically, only the battery cells are repurposed, while a new Battery Management System […]
P2-058_Šamořil
In recent years, there has been a notable surge in efforts aimed at advancing lithium-ion batteries, crucial for electric vehicles, stationary storage technologies, and portable electronics. The lifespan of these batteries, particularly concerning capacity fade, hinges largely on electrode degradation and the deactivation of active materials. Additionally, a pivotal factor impacting both battery lifespan and […]