Matthias Neumann
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View article: Analysis of carbon-binder domain morphology and correlation to effective ion transport properties
Analysis of carbon-binder domain morphology and correlation to effective ion transport properties Open
View article: Data-driven stochastic 3D modeling of the nanoporous binder-conductive additive phase in battery cathodes
Data-driven stochastic 3D modeling of the nanoporous binder-conductive additive phase in battery cathodes Open
A stochastic 3D modeling approach for the nanoporous binder-conductive additive phase in hierarchically structured cathodes of lithium-ion batteries is presented. The binder-conductive additive phase of these electrodes consists of carbon …
View article: CBAModel: Stochastic 3D Structure Model for Binder-Conductive Additive Phase
CBAModel: Stochastic 3D Structure Model for Binder-Conductive Additive Phase Open
View article: Quantifying Local Heterogeneities in the 3D Morphology of X-PVMPT Battery Electrodes Based on FIB-SEM Measurements
Quantifying Local Heterogeneities in the 3D Morphology of X-PVMPT Battery Electrodes Based on FIB-SEM Measurements Open
View article: Quantifying local heterogeneities in the 3D morphology of X-PVMPT battery electrodes based on FIB-SEM measurements
Quantifying local heterogeneities in the 3D morphology of X-PVMPT battery electrodes based on FIB-SEM measurements Open
Organic electrode-active materials (OAMs) not only enable a variety of charge and storage mechanisms, but are also safer for the environment and of lower cost compared to materials in commonly used lithium-ion batteries. Cross-linked Poly(…
View article: A Physics-Informed 3d Surrogate Model for Elastic Fields in Polycrystals
A Physics-Informed 3d Surrogate Model for Elastic Fields in Polycrystals Open
View article: Analysis of Carbon-Binder Domain Morphology and Correlation to Effective Ion Transport Properties
Analysis of Carbon-Binder Domain Morphology and Correlation to Effective Ion Transport Properties Open
View article: Modeling of Habitat Suitability Using Remote Sensing and Spatio-Temporal Imprecise In Situ Data on the Example of Red Deer
Modeling of Habitat Suitability Using Remote Sensing and Spatio-Temporal Imprecise In Situ Data on the Example of Red Deer Open
This paper presents a streamlined approach to describing potential habitats for red deer (Cervus elaphus) in situations where in situ data collected through observations and monitoring are absent or insufficient. The main objectives of thi…
View article: Data-driven stochastic 3D modeling of the nanoporous binder-conductive additive phase in battery cathodes
Data-driven stochastic 3D modeling of the nanoporous binder-conductive additive phase in battery cathodes Open
A stochastic 3D modeling approach for the nanoporous binder-conductive additive phase in hierarchically structured cathodes of lithium-ion batteries is presented. The binder-conductive additive phase of these electrodes consists of carbon …
View article: Morphology of nanoporous glass: Stochastic 3D modeling, stereology and the influence of pore width
Morphology of nanoporous glass: Stochastic 3D modeling, stereology and the influence of pore width Open
Excursion sets of Gaussian random fields are used to model the three-dimensional (3D) morphology of differently manufactured porous glasses (PGs), which vary with respect to their mean pore widths measured by mercury intrusion porosimetry.…
View article: Stochastic 3D microstructure modeling of twinned polycrystals for investigating the mechanical behavior of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" altimg="si30.svg" display="inline" id="d1e2862"><mml:mi>γ</mml:mi></mml:math>-TiAl intermetallics
Stochastic 3D microstructure modeling of twinned polycrystals for investigating the mechanical behavior of -TiAl intermetallics Open
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View article: Effect of crystallographic twins on the elastoplastic response of polycrystals
Effect of crystallographic twins on the elastoplastic response of polycrystals Open
We investigate the influence of crystallographic twins on the elastoplastic response of $γ$-TiAl intermetallics via full-field FFT-based computations. We first introduce a hierarchical stochastic model, which is used to simulate synthetic …
View article: Stochastic 3D Modeling of Nanostructured NVP/C Active Material Particles for Sodium‐Ion Batteries
Stochastic 3D Modeling of Nanostructured NVP/C Active Material Particles for Sodium‐Ion Batteries Open
A data‐driven modeling approach is presented to quantify the influence of morphology on effective properties in nanostructured sodium vanadium phosphate / carbon composites (NVP/C), which are used as cathode material in sodium‐ion batterie…
View article: Stochastic 3D microstructure modeling of twinned polycrystals for investigating the mechanical behavior of $γ$-TiAl intermetallics
Stochastic 3D microstructure modeling of twinned polycrystals for investigating the mechanical behavior of $γ$-TiAl intermetallics Open
A stochastic 3D microstructure model for polycrystals is introduced which incorporates two types of twin grains, namely neighboring and inclusion twins. They mimic the presence of crystal twins in $γ$-TiAl polycrystalline microstructures a…
View article: Influence of Electrode Structuring Techniques on the Performance of All‐Solid‐State Batteries
Influence of Electrode Structuring Techniques on the Performance of All‐Solid‐State Batteries Open
All‐solid‐state batteries (ASSBs) offer a promising route to safer batteries with superior energy density compared to conventional Li‐ion batteries (LIBs). However, the design of the composite cathode and optimization of the underlying mic…
View article: Effect of Crystallographic Twins on the Elastoplastic Response of Polycrystals
Effect of Crystallographic Twins on the Elastoplastic Response of Polycrystals Open
View article: Influence of Electrode Structuring Techniques on the Performance of All-Solid-State Batteries
Influence of Electrode Structuring Techniques on the Performance of All-Solid-State Batteries Open
All-solid-state batteries (ASSBs) offer a promising route to safer batteries with superior energy density compared to conventional Li-ion batteries (LIBs). However, the design of the composite cathode and optimization of the underlying mic…
View article: Quantifying the impact of operating temperature on cracking in battery electrodes, using super-resolution of microscopy images and stereology
Quantifying the impact of operating temperature on cracking in battery electrodes, using super-resolution of microscopy images and stereology Open
There are numerous factors that can have an impact on the degradation behavior of batteries, such as the number of recharge cycles or the charge rate. Here, we investigate the influence of operating temperature on the structural degradatio…
View article: Stochastic 3D modeling of nanostructured NVP/C active material particles for sodium-ion batteries
Stochastic 3D modeling of nanostructured NVP/C active material particles for sodium-ion batteries Open
A data-driven modeling approach is presented to quantify the influence of morphology on effective properties in nanostructured sodium vanadium phosphate $\mathrm{Na}_3\mathrm{V}_2(\mathrm{PO}_4)_3$/ carbon composites (NVP/C), which are use…
View article: Morphology‐Dependent Influences on the Performance of Battery Cells with a Hierarchically Structured Positive Electrode**
Morphology‐Dependent Influences on the Performance of Battery Cells with a Hierarchically Structured Positive Electrode** Open
The rising demand for high‐performing batteries requires new technological concepts. To facilitate fast charge and discharge, hierarchically structured electrodes offer short diffusion paths in the active material. However, there are still…
View article: Morphology-Dependent Influences on the Performance of Battery Cells with a Hierarchically Structured Positive Electrode
Morphology-Dependent Influences on the Performance of Battery Cells with a Hierarchically Structured Positive Electrode Open
Raw data for the publication: NAUMANN, Johanna, et al. Morphology‐Dependent Influences on the Performance of Battery Cells with a Hierarchically Structured Positive Electrode. Batteries & Supercaps, 2023, S. e202300264. https://doi.org/10.…
View article: Morphology-Dependent Influences on the Performance of Battery Cells with a Hierarchically Structured Positive Electrode
Morphology-Dependent Influences on the Performance of Battery Cells with a Hierarchically Structured Positive Electrode Open
Raw data for the publication: NAUMANN, Johanna, et al. Morphology‐Dependent Influences on the Performance of Battery Cells with a Hierarchically Structured Positive Electrode. Batteries & Supercaps, 2023, S. e202300264. https://doi.org/10.…
View article: Morphology-Dependent Influences on the Performance of Battery Cells with a Hierarchically Structured Positive Electrode
Morphology-Dependent Influences on the Performance of Battery Cells with a Hierarchically Structured Positive Electrode Open
The rising demand for high-performing batteries requires new technological concepts. To facilitate fast charge and discharge, hierarchically structured electrodes offer short diffusion paths in the active material. However, there are still…
View article: Unveiling the impact of crosslinking redox-active polymers on their electrochemical behavior by 3D imaging and statistical microstructure analysis
Unveiling the impact of crosslinking redox-active polymers on their electrochemical behavior by 3D imaging and statistical microstructure analysis Open
Polymer-based batteries offer potentially higher power densities and a smaller ecological footprint compared to state-of-the-art lithium-ion batteries comprising inorganic active materials. However, in order to benefit from this potential …
View article: Joint Distributions of Local Pore Space Properties Quantitatively Explain Simulated Air Flow Variations in Paper
Joint Distributions of Local Pore Space Properties Quantitatively Explain Simulated Air Flow Variations in Paper Open
The gas flow through sheet-like porous materials such as paper can show marked lateral variations due to a heterogeneous, locally varying microstructure. Hence, reliable predictions of such lateral flux variations require an appropriate co…
View article: Quantitative Comparison of Different Approaches for Reconstructing the Carbon‐Binder Domain from Tomographic Image Data of Cathodes in Lithium‐Ion Batteries and Its Influence on Electrochemical Properties
Quantitative Comparison of Different Approaches for Reconstructing the Carbon‐Binder Domain from Tomographic Image Data of Cathodes in Lithium‐Ion Batteries and Its Influence on Electrochemical Properties Open
The cover shows the 3D microstructure of a cathode in a lithium-ion battery, which is crucial for the resulting electrochemical performance. In particular, the lateral faces show two different three-phase reconstructions obtained by a clos…
View article: Segmentation and morphological analysis of amyloid fibrils from cryo-EM image data
Segmentation and morphological analysis of amyloid fibrils from cryo-EM image data Open
Fast assessment of the composition of amyloid fibril samples from cryo-EM data poses a serious challenge to existing image analysis tools. We develop a method for automated segmentation of single fibrils requiring only little user input du…
View article: Summary and Conclusions
Summary and Conclusions Open
A short summary is provided for each chapter of the book, which includes a review of theories and a new classification of tortuosity types (chapter 2), a review of empirical data (tortuosity-porosity relationships) from literature (chapter…
View article: Introduction
Introduction Open
Tortuosity is a major source of transport resistance from microstructure. The scientific debates on tortuosity and associated microstructure effects are often affected by misunderstandings and misconceptions. The sources of these misunders…
View article: Image Based Methodologies, Workflows, and Calculation Approaches for Tortuosity
Image Based Methodologies, Workflows, and Calculation Approaches for Tortuosity Open
In this chapter, modern methodologies for characterization of tortuosity are thoroughly reviewed. Thereby, 3D microstructure data is considered as the most relevant basis for characterization of all three tortuosity categories, i.e., direc…