P5-046_ZENG
The growing market of electric vehicles in recent years has increased the demand for lithium-ion batteries (LIBs) as well as the potential large amount of retired vehicle batteries. The concept of repurposing used EV batteries as second-life energy storage units has been accordingly developed to bolster sustainable energy systems while reducing waste and environmental impact. […]
P4-020
Load profile choices greatly influence voltage, current, and temperature behavior during battery simulation. Until now, there has been no framework to derive on-demand representative load profiles for simulations at any system level. We propose a methodology to synthesize such profiles. High-dimensional vehicle history information is compressed into significantly shorter, multivariate time series data. During the […]
P2-029
Lithium-ion cells are well-established on the market for portable electronic devices and electric vehicles and their safety has been extensively studied. In contrast, a potential alternative to lithium-ion technology, sodium-ion cells, has yet to be thoroughly investigated, particularly concerning their safety and thermal behaviour during thermal runaway incidents. For this reason, one commercial nickel-rich lithium-ion […]
P1-032_Fricke
Redox flow batteries (RFB) are a promising grid-scale electricity storage technology due to their decoupling of capacity (dissolved amount of redox active species (RAS) in the electrolyte) and power (cell potential of the RAS). However, as there are still no standard setups and operating parameters for RFBs, the comparability of measurement results is limited due […]
P1-105_Scharmann
Solid-state batteries represent a promising advance in battery technology for meeting the expected growing demand for higher energy and power density of batteries, which are essential for an efficient electromobility. Within this battery concept, the conventionally liquid electrolyte in lithium-ion-batteries is replaced by a solid layer. For this purpose, sulfide-based electrolytes exhibit exceptional ionic conductivities […]
P2-080
The race for the perfect cell design regarding high energy and power applications is very vital and in recent years none of the three main cell types (cylindrical, prismatic hardcase and pouch) is dominating the market. A general trend of increased cell dimensions, hence capacity per cell can be observed and predominantly an improved engineering […]
P2-050
Battery power capability has long been a challenge. All common methods to determine power capability, including the hybrid pulse power characterization (HPPC) test, are estimation methods where a model is fit to measured data and power capability is calculated rather than measured. Such estimation methods are inherently error prone due to the complex nonlinear characteristics […]
P5-075
In this study, one clear outcome with high impact on previously collected electrochemical data on coin cells, is that the steel grade of cell parts, as well as the in-housed total height of the electrode stack have dramatic influence on the acquired electrochemical data, e.g. under “bad” conditions the cycling stability drops from a few […]
P2-017
The automotive industry is commonly set as the most important sector for electrification. It uses established and uniform procedures regarding battery management and thermal regulation. In less standardised industries, broad battery system requirements often lead to more complicated solutions with significantly lower sales figures, making it difficult for manufacturers to engineer proper systems to minimise […]
1-019
Due to their high theoretical energy density, all solid state lithium sulfur batteries (ASSBLSB) represent one of the most promising candidates for next-generation energy storage systems. Whilst high sulfur utilizations have been published for several cathode compositions and preparation methods in recent years, there is still a lack of clarity regarding the influence of the […]