P1-064
The substitution of critical raw materials, such as Ni, in layered oxide cathode materials offers a promising pathway to enhance the cycling stability and mean voltage of sodium-ion batteries. Beyond the general entropy enhancement, the precise selection of redox-active elements and structurally stabilizing dopants critically influences the cycling performance and stability of the P2-type layered […]
P3-024
Diagnosing the state of charge, state of health, or state of power of a Lithium-ion battery (LIB) has been a key focus in battery research for many years. However, with a growing demand for circular reusage and recycling especially of automotive traction batteries, a new issue arises: Often, there is no secured knowledge about the […]
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 […]
P1-033
Hybrid solid electrolytes (HSEs) combining organic and inorganic phases are a promising candidate for high-performance solid-state batteries (SSBs) due to their high ionic conductivity, flexibility, electrochemical stability, compatibility with electrodes, and processability. However, the interface between ceramic electrolytes and polymer matrix often has Li+-deficient space charge layers due to the high potential difference, which hinders […]
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 […]