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Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries

2021-09-27 Technology & Engineering
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Release : 2021-09-27
Genre : Technology & Engineering
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Book Synopsis Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries by : Zhang, Tao

Download or read book Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries written by Zhang, Tao. This book was released on 2021-09-27. Available in PDF, EPUB and Kindle. Book excerpt: Most storage materials exhibit phase changes, which cause stresses and, thus, lead to damage of the electrode particles. In this work, a phase-field model for the cathode material NaxFePO4 of Na-ion batteries is studied to understand phase changes and stress evolution. Furthermore, we study the particle size and SOC dependent miscibility gap of the nanoscale insertion materials. Finally, we introduce the nonlocal species concentration theory, and show how the nonlocality influences the results.

Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries

2019
Download Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries PDF Online Free

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Release : 2019
Genre :
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Book Rating : /5 ( reviews)

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Book Synopsis Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries by : Tao Zhang

Download or read book Phase-field Modeling of Phase Changes and Mechanical Stresses in Electrode Particles of Secondary Batteries written by Tao Zhang. This book was released on 2019. Available in PDF, EPUB and Kindle. Book excerpt:

Dynamic Model-based Analysis of Oxygen Reduction Reaction in Gas Diffusion Electrodes

2024-01-09
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Release : 2024-01-09
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Kind : eBook
Book Rating : 343/5 ( reviews)

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Book Synopsis Dynamic Model-based Analysis of Oxygen Reduction Reaction in Gas Diffusion Electrodes by : Röhe, Maximilian

Download or read book Dynamic Model-based Analysis of Oxygen Reduction Reaction in Gas Diffusion Electrodes written by Röhe, Maximilian. This book was released on 2024-01-09. Available in PDF, EPUB and Kindle. Book excerpt: In this work, the first simulation model of oxygen depolarized cathodes (ODC), which are silver catalyst-based gas diffusion electrodes, is presented that considers the phase equilibrium of the gas-liquid interface and structure-related inhomogeneities in electrolyte distribution. By means of the model it has been identified that mass transport of water and ions in the liquid phase is a crucial factor for electrode performance and how it is influenced by the electrode structure.

On the Electro-Chemo-Mechanical Coupling in Solid State Batteries and its Impact on Morphological Interface Stability

2021-03-09 Technology & Engineering
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Release : 2021-03-09
Genre : Technology & Engineering
Kind : eBook
Book Rating : 472/5 ( reviews)

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Book Synopsis On the Electro-Chemo-Mechanical Coupling in Solid State Batteries and its Impact on Morphological Interface Stability by : Ganser, Markus

Download or read book On the Electro-Chemo-Mechanical Coupling in Solid State Batteries and its Impact on Morphological Interface Stability written by Ganser, Markus. This book was released on 2021-03-09. Available in PDF, EPUB and Kindle. Book excerpt: Solid state batteries with a lithium metal electrode are considered the next generation of high energy battery technology. Unfortunately, lithium metal is prone to harmful protrusion or dendrite growth which causes dangerous cell failure. Within this work the problem of protrusion growth is tackled by deriving a novel electro-chemo-mechanical theory tailored for binary solid state batteries which is then used to discuss the impact of mechanics on interface stability by numerical studies.

Modeling transport properties and electrochemical performance of hierarchically structured lithium-ion battery cathodes using resistor networks and mathematical half-cell models

2022-10-05 Science
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Release : 2022-10-05
Genre : Science
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Book Rating : 72X/5 ( reviews)

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Book Synopsis Modeling transport properties and electrochemical performance of hierarchically structured lithium-ion battery cathodes using resistor networks and mathematical half-cell models by : Birkholz, Oleg

Download or read book Modeling transport properties and electrochemical performance of hierarchically structured lithium-ion battery cathodes using resistor networks and mathematical half-cell models written by Birkholz, Oleg. This book was released on 2022-10-05. Available in PDF, EPUB and Kindle. Book excerpt: Hierarchically structured active materials in electrodes of lithium-ion cells are promising candidates for increasing gravimetric energy density and improving rate capability of the system. To investigate the influence of cathode structures on the performance of the whole cell, efficient tools for calculating effective transport properties of granular systems are developed and their influence on the electrochemical performance is investigated in specially adapted cell models.

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