P2-020
Research into the safety of lithium-ion batteries, with a focus on thermal runaway, is critical due to the widespread use of these batteries in numerous applications. Safety concerns arise from the potential for thermal runaway, which can lead to fires or explosions. This study focuses on the influence of the electrolyte and its additives on […]
P2-031
The lithium ion battery (LIB) still suffers from capacity loss due to several aging mechanisms during cycling and storage. The electrolyte is not stable at the applied electrode potentials and forms passivating layers on the anode and cathode, the so-called solid electrolyte interphase (SEI) and cathode electrolyte interphase (CEI), respectively. These interphases consist of various […]
2-011
One of the most important lifetime-limiting factors for lithium-ion cells is calendar aging. This is why many experiments are performed to characterize and model it. These experiments are typically conducted under open circuit (OC) or constant voltage (CV) condition. In OC condition, the cells are stored without any electrical connection during the rest periods, while […]
P1-083
Solid-state batteries are promising to improve safety and energy density compared to conventional lithium-ion batteries by replacing the liquid electrolyte with a solid one. Sulfide-based solid electrolytes (SE) offer the highest ionic conductivity in comparison to oxides and polymers as potential electrolyte materials.[1] However, the scale-up of production processes is complicated due to a high […]
P3-018
Lithium-ion batteries suffer from a free-fall drop in available capacity and accelerated ageing under extremely cold climates. Therefore, they must be preheated before normal operations. Internal heating schemes using direct current (DC) or alternating current (AC) are more promising than traditional conductive and convective approaches owing to their superiorities in terms of high efficiency, rapid […]
P3-025_Cai
As complex electrochemical energy storage devices, lithium-ion batteries (LIBs) exhibit coupled multiphysics responses across diverse operational conditions. A well-designed decoupling evaluation offers a more significant opportunity to reveal the interaction and correlation mechanisms between the multiphysics. In the battery packaging design, practical multi-field evaluation of LIBs provides a reasonable solution for thermal management and structural […]
P-027
Multi-Walled Carbon Nanotubes (MWCNTs) have been recognized as a beneficial conductive additive material in Silicon-based anodes owing to their unique characteristics, including high electronic conductivity and the capability to alleviate the volume expansion of lithiated Silicon anode-based battery cells. Nevertheless, both CNTs and Silicon irreversibly consume a high quantity of Li-Ion inventory to form the […]
P1-004_Frankenberg
All-solid-state batteries (ASSB) are considered as attractive further development of conventional lithium-ion batteries, since they are expected to deliver higher energy and power densities. So far, ASSB with inorganic solid electrolytes have not been applied in large-scale due to difficulties in processing, insufficient overall ionic conductivities, and high interfacial resistances between active material and solid […]
P5-057
The process-structure-property relationship on anode side is influenced by different structures of the active material. Different graphite types, such as rounded or flake-shaped, are compared within a batch mixing process. Resulting process-structure-property relationships between the batch mixing and the calendering process were identified by different powder characterization methods. On the poster we will discuss how […]
P2-024
Achieving a circular economy in the battery industry demands a profound understanding of the degradation behavior of aged battery cells, especially for their potential use in second-life applications. Key to this is the prediction of their future performance and safety characteristics. However, a significant challenge arises due to the intricate interplay of various degradation modes […]