Physically based Impedance Modelling of Lithium-Ion Cells

Physically based Impedance Modelling of Lithium-Ion Cells PDF Author: Illig, Joerg
Publisher: KIT Scientific Publishing
ISBN: 3731502461
Category :
Languages : en
Pages : 234

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Physically based Impedance Modelling of Lithium-Ion Cells

Physically based Impedance Modelling of Lithium-Ion Cells PDF Author: Illig, Joerg
Publisher: KIT Scientific Publishing
ISBN: 3731502461
Category :
Languages : en
Pages : 234

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Book Description


Physically Based Impedance Modelling of Lithium-Ion Cells

Physically Based Impedance Modelling of Lithium-Ion Cells PDF Author: Jörg Illig
Publisher:
ISBN: 9781013281518
Category : Science
Languages : en
Pages : 224

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Book Description
In this book, a new procedure to analyze lithium-ion cells is introduced. The cells are disassembled to analyze their components in experimental cell housings. Then, Electrochemical Impedance Spectroscopy, time domain measurements and the Distribution function of Relaxation Times are applied to obtain a deep understanding of the relevant loss processes. This procedure yields a notable surplus of information about the electrode contributions to the overall internal resistance of the cell. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.

Battery Management Systems, Volume III: Physics-Based Methods

Battery Management Systems, Volume III: Physics-Based Methods PDF Author: Gregory L. Plett
Publisher: Artech House
ISBN: 1630819050
Category : Technology & Engineering
Languages : en
Pages : 397

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Book Description
This book -- the third and final volume in a series describing battery-management systems – shows you how to use physics-based models of battery cells in a computationally efficient way for optimal battery-pack management and control to maximize battery-pack performance and extend life. It covers the foundations of electrochemical model-based battery management system while introducing and teaching the state of the art in physics-based methods for battery management. Building upon the content in volumes I and II, the book helps you identify parameter values for physics-based models of a commercial lithium-ion battery cell without requiring cell teardown; shows you how to estimate the internal electrochemical state of all cells in a battery pack in a computationally efficient way during operation using these physics-based models; demonstrates the use the models plus state estimates in a battery management system to optimize fast-charge of battery packs to minimize charge time while also maximizing battery service life; and takes you step-by-step through the use models to optimize the instantaneous power that can be demanded from the battery pack while also maximizing battery service life. The book also demonstrates how to overcome the primary roadblocks to implementing physics-based method for battery management: the computational-complexity roadblock, the parameter-identification roadblock, and the control-optimization roadblock. It also uncovers the fundamental flaw in all present “state of art” methods and shows you why all BMS based on equivalent-circuit models must be designed with over-conservative assumptions. This is a strong resource for battery engineers, chemists, researchers, and educators who are interested in advanced battery management systems and strategies based on the best available understanding of how battery cells operate.

Lithium-Ion Batteries

Lithium-Ion Batteries PDF Author: Mohammad (Mim) Rahimi
Publisher: MDPI
ISBN: 3036505849
Category : Science
Languages : en
Pages : 230

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Book Description
Lithium-ion batteries (LIBs), as a key part of the 2019 Nobel Prize in Chemistry, have become increasingly important in recent years, owing to their potential impact on building a more sustainable future. Compared with other batteries developed, LIBs offer high energy density, high discharge power, and a long service life. These characteristics have facilitated a remarkable advance of LIBs in many frontiers, including electric vehicles, portable and flexible electronics, and stationary applications. Since the field of LIBs is advancing rapidly and attracting an increasing number of researchers, it is necessary to often provide the community with the latest updates. Therefore, this book was designed to focus on updating the electrochemical community with the latest advances and prospects on various aspects of LIBs. The materials presented in this book cover advances in several fronts of the technology, ranging from detailed fundamental studies of the electrochemical cell to investigations to better improve parameters related to battery packs.

Microstructural Characterisation, Modelling and Simulation of Solid Oxide Fuel Cell Cathodes

Microstructural Characterisation, Modelling and Simulation of Solid Oxide Fuel Cell Cathodes PDF Author: Joos, Jochen
Publisher: KIT Scientific Publishing
ISBN: 3731506254
Category :
Languages : en
Pages : 248

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Finite Element Method (FEM) Model and Performance Analysis of Solid Oxide Fuel Cells

Finite Element Method (FEM) Model and Performance Analysis of Solid Oxide Fuel Cells PDF Author: Geisler, Helge Ingolf
Publisher: KIT Scientific Publishing
ISBN: 3731508958
Category : Technology & Engineering
Languages : en
Pages : 292

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Book Description
This work presents a numerical FEM framework, capable of predicting SOFC performance under technically relevant, planar stack contacting conditions. A high level of confidence in the model predictions is supplied by using exclusively experimentally determined material/kinetic parameters and by a comprehensive validation. The presented model aids SOFC stack development by pre-evaluating possible material choices and design combinations for cells/interconnectors without any experimental effort.

Battery Management Systems, Volume I: Battery Modeling

Battery Management Systems, Volume I: Battery Modeling PDF Author: Gregory L. Plett
Publisher: Artech House
ISBN: 163081024X
Category : Technology & Engineering
Languages : en
Pages : 336

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Book Description
Large-scale battery packs are needed in hybrid and electric vehicles, utilities grid backup and storage, and frequency-regulation applications. In order to maximize battery-pack safety, longevity, and performance, it is important to understand how battery cells work. This first of its kind new resource focuses on developing a mathematical understanding of how electrochemical (battery) cells work, both internally and externally. This comprehensive resource derives physics-based micro-scale model equations, then continuum-scale model equations, and finally reduced-order model equations. This book describes the commonly used equivalent-circuit type battery model and develops equations for superior physics-based models of lithium-ion cells at different length scales. This resource also presents a breakthrough technology called the “discrete-time realization algorithm” that automatically converts physics-based models into high-fidelity approximate reduced-order models.

Emerging Technologies for Electric and Hybrid Vehicles

Emerging Technologies for Electric and Hybrid Vehicles PDF Author: Jesús Manuel González Pérez
Publisher: MDPI
ISBN: 3038971901
Category : Electric vehicles
Languages : en
Pages : 373

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Book Description
This book is a printed edition of the Special Issue "Emerging Technologies for Electric and Hybrid Vehicles" that was published in energies

Electrochemical Performance and Stability of Ba₀.₅Sr₀.₅Co₀.₈Fe₀.₂O₃₋δ for Oxygen Transport Membranes

Electrochemical Performance and Stability of Ba₀.₅Sr₀.₅Co₀.₈Fe₀.₂O₃₋δ for Oxygen Transport Membranes PDF Author: Niedrig, Christian
Publisher: KIT Scientific Publishing
ISBN: 3731504375
Category :
Languages : en
Pages : 206

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Electrochemical Phenomena in the Cathode Impedance Spectrum of PEM Fuel Cells

Electrochemical Phenomena in the Cathode Impedance Spectrum of PEM Fuel Cells PDF Author: Samuel Cruz-Manzo
Publisher: Elsevier
ISBN: 0323914322
Category : Technology & Engineering
Languages : en
Pages : 388

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Book Description
Electrochemical Phenomena in the Cathode Impedance Spectrum of PEM Fuel Cells: Fundamentals, Modelling, and Applications establishes how the electrochemical and diffusion mechanisms of a polymer electrolyte membrane fuel cell (PEMFC) are related to electrochemical impedance spectroscopy (EIS) measurements using physics-based impedance models derived from fundamental electrode and diffusion theories. The contribution of the different phenomena occurring at the different layers comprising the cathode on the impedance response of the PEMFC is revealed through EIS-modelling analysis. The relation between EIS measurements and polarisation curves representing the performance of PEMFCs is established. Insight is gained into how the EIS response of the PEMFC changes at different operating conditions e.g. relative humidity, load demand, gas reactant stoichiometry and temperature using physics-based impedance models. The application of impedance models with EIS measurements carried out in the individual cells comprising a PEMFC stack is demonstrated, while recent modelling approaches and other impedance models reported in the literature to represent the EIS response of the PEMFC are also considered and discussed. Provides further understanding of ambiguities during the interpretation of the electrochemical impedance spectrum of the PEMFC Includes impedance models written in MATLAB® for replication or application to other PEMFC-EIS measurements Includes impedance spectra of the PEMFC at different operating conditions, electro/diffusion pathways for derivation of the impedance models and flowcharts for application of the impedance models with real-world measured EIS data