Sohrab R. Daemi
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View article: Fast Degradation of Solid Electrolyte in Initial Cycling Processes, Tracked in 3D by Synchrotron X-ray Computed Tomography
Fast Degradation of Solid Electrolyte in Initial Cycling Processes, Tracked in 3D by Synchrotron X-ray Computed Tomography Open
Solid-state lithium batteries are developing rapidly as a promising next-generation battery, while challenges still persist in understanding their degradation processes during cycling due to the difficulties in characterization. In this st…
View article: A groovy laser processing route to achieving high power and energy lithium-ion batteries
A groovy laser processing route to achieving high power and energy lithium-ion batteries Open
3D-structured NMC622 with precisely controlled electrolyte channels were manufactured by incorporating femtosecond laser processing with conventional slurry casting. Demonstrated in a full cell for the first time, the 3D electrode structur…
View article: A Groovy Laser Processing Route to Achieving High Power and Energy Lithium-Ion Batteries
A Groovy Laser Processing Route to Achieving High Power and Energy Lithium-Ion Batteries Open
View article: Computer‐Vision‐Based Approach to Classify and Quantify Flaws in Li‐Ion Electrodes
Computer‐Vision‐Based Approach to Classify and Quantify Flaws in Li‐Ion Electrodes Open
X‐ray computed tomography (X‐ray CT) is a non‐destructive characterization technique that in recent years has been adopted to study the microstructure of battery electrodes. However, the often manual and laborious data analysis process hin…
View article: Multi-length scale microstructural design of lithium-ion battery electrodes for improved discharge rate performance
Multi-length scale microstructural design of lithium-ion battery electrodes for improved discharge rate performance Open
Microstructural design strategies across multiple length scales for improved rate performance of automotive battery electrodes, assisted by physics-based microstructure-resolved model.
View article: <i>Operando</i> Bragg Coherent Diffraction Imaging of LiNi<sub>0.8</sub>Mn<sub>0.1</sub>Co<sub>0.1</sub>O<sub>2</sub> Primary Particles within Commercially Printed NMC811 Electrode Sheets
<i>Operando</i> Bragg Coherent Diffraction Imaging of LiNi<sub>0.8</sub>Mn<sub>0.1</sub>Co<sub>0.1</sub>O<sub>2</sub> Primary Particles within Commercially Printed NMC811 Electrode Sheets Open
Due to complex degradation mechanisms, disparities between the theoretical and practical capacities of lithium-ion battery cathode materials persist. Specifically, Ni-rich chemistries such as LiNi0.8Mn0.1Co0.1
View article: The Detection of Monoclinic Zirconia and Non-Uniform 3D Crystallographic Strain in a Re-Oxidized Ni-YSZ Solid Oxide Fuel Cell Anode
The Detection of Monoclinic Zirconia and Non-Uniform 3D Crystallographic Strain in a Re-Oxidized Ni-YSZ Solid Oxide Fuel Cell Anode Open
The solid oxide fuel cell (SOFC) anode is often composed of nickel (Ni) and yttria-stabilized zirconia (YSZ). The yttria is added in small quantities (e.g., 8 mol %) to maintain the crystallographic structure throughout the operating tempe…
View article: 3D microstructure design of lithium-ion battery electrodes assisted by X-ray nano-computed tomography and modelling
3D microstructure design of lithium-ion battery electrodes assisted by X-ray nano-computed tomography and modelling Open
View article: Spatial quantification of dynamic inter and intra particle crystallographic heterogeneities within lithium ion electrodes
Spatial quantification of dynamic inter and intra particle crystallographic heterogeneities within lithium ion electrodes Open
View article: Rapid Preparation of Geometrically Optimal Battery Electrode Samples for Nano Scale X-ray Characterisation
Rapid Preparation of Geometrically Optimal Battery Electrode Samples for Nano Scale X-ray Characterisation Open
Rechargeable lithium-based batteries are one of the key enabling technologies driving the shift to renewable energy, and research into novel technologies has intensified to meet growing demands in applications requiring higher energy and p…
View article: Exploring cycling induced crystallographic change in NMC with X-ray diffraction computed tomography
Exploring cycling induced crystallographic change in NMC with X-ray diffraction computed tomography Open
This study presents the application of XRD-CT combined with FIB-SEM to analyze the crystal dimensions of LiNi0.33Mn0.33Co0.33O2 electrodes and spatially localise the change in unit cell dimension…
View article: Spatially Resolving Lithiation in Silicon–Graphite Composite Electrodes via in Situ High-Energy X-ray Diffraction Computed Tomography
Spatially Resolving Lithiation in Silicon–Graphite Composite Electrodes via in Situ High-Energy X-ray Diffraction Computed Tomography Open
Optimizing the chemical and morphological parameters of lithium-ion (Li-ion) electrodes is extremely challenging, due in part to the absence of techniques to construct spatial and temporal descriptions of chemical and morphological heterog…
View article: 4D visualisation of <i>in situ</i> nano-compression of Li-ion cathode materials to mimic early stage calendering
4D visualisation of <i>in situ</i> nano-compression of Li-ion cathode materials to mimic early stage calendering Open
X-ray nano-tomography was used to study the strain evolution of an NMC electrode under uniaxial compression to mimic calendering.
View article: Evolution of Electrochemical Cell Designs for In-Situ and Operando 3D Characterization
Evolution of Electrochemical Cell Designs for In-Situ and Operando 3D Characterization Open
Lithium-based rechargeable batteries such as lithium-ion (Li-ion), lithium-sulfur (Li-S), and lithium-air (Li-air) cells typically consist of heterogenous porous electrodes. In recent years, there has been growing interest in the use of in…
View article: Three-dimensional image based modelling of transport parameters in lithium–sulfur batteries
Three-dimensional image based modelling of transport parameters in lithium–sulfur batteries Open
A sulfur electrode was imaged with X-ray micro and nano computed tomography for the modelling of effective molecular diffusivity and electrical conductivity through flux based simulations.
View article: Four-Dimensional Studies of Morphology Evolution in Lithium–Sulfur Batteries
Four-Dimensional Studies of Morphology Evolution in Lithium–Sulfur Batteries Open
Lithium sulfur (Li–S) batteries have great potential as a successor to Li-ion batteries, but their commercialization has been complicated by a multitude of issues stemming from their complex multiphase chemistry. In situ X-ray tomography i…
View article: Visualizing the Carbon Binder Phase of Battery Electrodes in Three Dimensions
Visualizing the Carbon Binder Phase of Battery Electrodes in Three Dimensions Open
This study presents a technique to directly characterize the carbon and binder domain (CBD) in lithium-ion (Li-ion) battery electrodes in three dimensions and use it to determine the effective transport properties of a LiNi0.33Mn0.33Co0.33…
View article: A Lab-Based Multi-Length Scale Approach to Characterize Lithium-Ion Cathode Materials
A Lab-Based Multi-Length Scale Approach to Characterize Lithium-Ion Cathode Materials Open
X-ray computed tomography has emerged as a valuable tool to analyze battery materials. This paper explores the possibilities and limitations offered by a multi-length scale lab-based approach to study a lithium nickel manganese cobalt oxid…
View article: Laser‐preparation of geometrically optimised samples for X‐ray nano‐CT
Laser‐preparation of geometrically optimised samples for X‐ray nano‐CT Open
Summary A robust and versatile sample preparation technique for the fabrication of cylindrical pillars for imaging by X‐ray nano‐computed tomography (nano‐CT) is presented. The procedure employs simple, cost‐effective laser micro‐machining…
View article: Exploring 3D microstructural evolution in Li-Sulfur battery electrodes using in-situ X-ray tomography
Exploring 3D microstructural evolution in Li-Sulfur battery electrodes using in-situ X-ray tomography Open