Search Results - "Finegan, Donal P."
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3D microstructure design of lithium-ion battery electrodes assisted by X-ray nano-computed tomography and modelling
Published in Nature communications (29-04-2020)“…Driving range and fast charge capability of electric vehicles are heavily dependent on the 3D microstructure of lithium-ion batteries (LiBs) and substantial…”
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Predicting the heat release variability of Li-ion cells under thermal runaway with few or no calorimetry data
Published in Nature communications (27-09-2024)“…Accurate measurement of the variability of thermal runaway behavior of lithium-ion cells is critical for designing safe battery systems. However,…”
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Spatial quantification of dynamic inter and intra particle crystallographic heterogeneities within lithium ion electrodes
Published in Nature communications (31-01-2020)“…The performance of lithium ion electrodes is hindered by unfavorable chemical heterogeneities that pre-exist or develop during operation. Time-resolved spatial…”
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In-operando high-speed tomography of lithium-ion batteries during thermal runaway
Published in Nature communications (28-04-2015)“…Prevention and mitigation of thermal runaway presents one of the greatest challenges for the safe operation of lithium-ion batteries. Here, we demonstrate for…”
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4D imaging of lithium-batteries using correlative neutron and X-ray tomography with a virtual unrolling technique
Published in Nature communications (07-02-2020)“…The temporally and spatially resolved tracking of lithium intercalation and electrode degradation processes are crucial for detecting and understanding…”
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3D Detection of Lithiation and Lithium Plating in Graphite Anodes during Fast Charging
Published in ACS nano (22-06-2021)“…A barrier to the widespread adoption of electric vehicles is enabling fast charging lithium-ion batteries. At normal charging rates, lithium ions intercalate…”
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Multiscale dynamics of charging and plating in graphite electrodes coupling operando microscopy and phase-field modelling
Published in Nature communications (24-08-2023)“…The phase separation dynamics in graphitic anodes significantly affects lithium plating propensity, which is the major degradation mechanism that impairs the…”
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Investigation of cycling-induced microstructural degradation in silicon-based electrodes in lithium-ion batteries using X-ray nanotomography
Published in Electrochimica acta (01-11-2017)“…[Display omitted] •Microstructural degradation of a Si electrode was investigated using X-ray nano-CT.•3D reconstructed electrode volumes were achieved at…”
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In situ chamber for studying battery failure using high‐speed synchrotron radiography
Published in Journal of synchrotron radiation (01-01-2023)“…The investigation of lithium‐ion battery failures is a major challenge for personnel and equipment due to the associated hazards (thermal reaction, toxic gases…”
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10
Three-Dimensional Mapping of Resistivity and Microstructure of Composite Electrodes for Lithium-Ion Batteries
Published in Nano letters (11-11-2020)“…Nanoparticle silicon–graphite composite electrodes are a viable way to advance the cycle life and energy density of lithium-ion batteries. However,…”
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Artificial generation of representative single Li-ion electrode particle architectures from microscopy data
Published in npj computational materials (13-07-2021)“…Accurately capturing the architecture of single lithium-ion electrode particles is necessary for understanding their performance limitations and degradation…”
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Super-resolving microscopy images of Li-ion electrodes for fine-feature quantification using generative adversarial networks
Published in npj computational materials (13-04-2022)“…For a deeper understanding of the functional behavior of energy materials, it is necessary to investigate their microstructure, e.g., via imaging techniques…”
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Quantifying Bulk Electrode Strain and Material Displacement within Lithium Batteries via High‐Speed Operando Tomography and Digital Volume Correlation
Published in Advanced science (01-03-2016)“…Tracking the dynamic morphology of active materials during operation of lithium batteries is essential for identifying causes of performance loss. Digital…”
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14
Simulated impedance of diffusion in porous media
Published in Electrochimica acta (10-10-2017)“…This paper describes the use of a frequency domain, finite-difference scheme to simulate the impedance spectra of diffusion in porous microstructures. Both…”
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Guiding the Design of Heterogeneous Electrode Microstructures for Li‐Ion Batteries: Microscopic Imaging, Predictive Modeling, and Machine Learning
Published in Advanced energy materials (01-05-2021)“…Electrochemical and mechanical properties of lithium‐ion battery materials are heavily dependent on their 3D microstructure characteristics. A quantitative…”
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Dynamic In‐Plane Heterogeneous and Inverted Response of Graphite to Fast Charging and Discharging Conditions in Lithium‐Ion Pouch Cells
Published in Small science (01-07-2023)“…Solutions for improving fast charging of lithium‐ion batteries have largely focused on alleviating through‐plane lithiation gradients while little is…”
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Degradation mechanisms of high capacity 18650 cells containing Si-graphite anode and nickel-rich NMC cathode
Published in Electrochimica acta (20-02-2019)“…Application of advanced anode and cathode materials in commercial lithium-ion batteries is attracting attention due to their high capacity. Silicon…”
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The Detection of Monoclinic Zirconia and Non-Uniform 3D Crystallographic Strain in a Re-Oxidized Ni-YSZ Solid Oxide Fuel Cell Anode
Published in Crystals (Basel) (01-10-2020)“…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…”
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Dynamics of Intra‐Cell Thermal Front Propagation in Lithium‐Ion Battery Safety Issues
Published in Advanced energy materials (01-11-2024)“…Thermal runaway (TR), a critical failure mode in lithium‐ion batteries (LIBs), poses significant safety risks and hinders wider application of LIBs. TR…”
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Bridging nano- and microscale X-ray tomography for battery research by leveraging artificial intelligence
Published in Nature nanotechnology (01-05-2022)“…X-ray computed tomography (CT) is a non-destructive imaging technique in which contrast originates from the materials’ absorption coefficient. The recent…”
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