Moritz Kroll
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View article: Synthetic Data Generation for AI-Informed End-of-Line Testing for Lithium-Ion Battery Production
Synthetic Data Generation for AI-Informed End-of-Line Testing for Lithium-Ion Battery Production Open
Lithium-ion batteries are a key technology in supply chains for modern electric vehicles. Their production is complex and can be prone to defects. As such, the detection of defective batteries is critical to ensure performance and consumer…
View article: Synthetic Data Generation for AI-Informed End-of-Line Testing for Lithium-Ion Battery Production
Synthetic Data Generation for AI-Informed End-of-Line Testing for Lithium-Ion Battery Production Open
Lithium-ion batteries are a key technology in supply chains for modern electric vehicles. The production of lithium-ion batteries is complex and can be prone to defects. As such, the detection of defective batteries at end-of-line is criti…
View article: Nondestructive Defect Detection in Battery Pouch Cells: A Comparative Study of Scanning Acoustic Microscopy and X‐Ray Computed Tomography
Nondestructive Defect Detection in Battery Pouch Cells: A Comparative Study of Scanning Acoustic Microscopy and X‐Ray Computed Tomography Open
The identification and location of critical defects inside battery cells before the performance decreases or safety issues arise remain a challenge. This study compares two nondestructive testing methods for the 3D visualization of defects…
View article: What Limits the Rate Capability of Ultrathick Composite Electrodes in Lithium‐Ion Batteries? A Case Study on the Thickness‐Dependent Impedance of LiCoO<sub>2</sub> Cathodes
What Limits the Rate Capability of Ultrathick Composite Electrodes in Lithium‐Ion Batteries? A Case Study on the Thickness‐Dependent Impedance of LiCoO<sub>2</sub> Cathodes Open
Increasing the thickness of composite electrodes in lithium‐ion batteries from about 80–100 μm in state‐of‐the‐art commercial cells to several 100 μm would enhance the energy density, however at the expense of the power density. Despite th…
View article: Three‐Phase Reconstruction Reveals How the Microscopic Structure of the Carbon‐Binder Domain Affects Ion Transport in Lithium‐Ion Batteries
Three‐Phase Reconstruction Reveals How the Microscopic Structure of the Carbon‐Binder Domain Affects Ion Transport in Lithium‐Ion Batteries Open
The morphology of the electrolyte‐filled pore space in lithium‐ion batteries is determined by the solid microstructure formed by μm‐sized active material particles and the smaller‐featured carbon binder domain (CBD). Tomographic reconstruc…
View article: Nanoscaled Fractal Superstructures via Laser Patterning—A Versatile Route to Metallic Hierarchical Porous Materials
Nanoscaled Fractal Superstructures via Laser Patterning—A Versatile Route to Metallic Hierarchical Porous Materials Open
A laser‐based procedure for the preparation of metallic hierarchical porous materials is introduced and exemplified on tin, copper, silicon, titanium, and tungsten surfaces to demonstrate its general applicability. The impact of suitably t…
View article: Thickness‐Dependent Impedance of Composite Battery Electrodes Containing Ionic Liquid‐Based Electrolytes
Thickness‐Dependent Impedance of Composite Battery Electrodes Containing Ionic Liquid‐Based Electrolytes Open
Lithium‐ion battery models often neglect the salt concentration polarization inside the electrolyte‐filled pores of the composite electrodes. However, this concentration polarization causes a significant impedance, in particular in the cas…