Download or read book Modeling Ion Mobility in Solid state Polymer Electrolytes written by Songela Wenqian Chen and published by . This book was released on 2019 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: We introduce a course-grained model of ion diffusion in a solid-state polymer electrolyte. Among many tunable parameters, we investigate the effect of ion concentration, ion-polymer attraction, and polymer disorder on cation diffusion. For the conditions tested, we find that ion concentration has little effect on diffusion. Polymer disorder creates local variation in behavior, which we call "trapping" (low diffusion) and "free diffusing" (high diffusion) regions. Changing ion-polymer attraction modulates the relative importance of trapping and free diffusing behavior. Using this model, we can continue to investigate how a number of factors affect cation diffusion both mechanistically and numerically, with the end goal of enabling rapid computational material design.
Download or read book Electrode Materials for Energy Storage and Conversion written by Mesfin A. Kebede and published by CRC Press. This book was released on 2021-11-17 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a comprehensive overview of the latest developments and materials used in electrochemical energy storage and conversion devices, including lithium-ion batteries, sodium-ion batteries, zinc-ion batteries, supercapacitors and conversion materials for solar and fuel cells. Chapters introduce the technologies behind each material, in addition to the fundamental principles of the devices, and their wider impact and contribution to the field. This book will be an ideal reference for researchers and individuals working in industries based on energy storage and conversion technologies across physics, chemistry and engineering. FEATURES Edited by established authorities, with chapter contributions from subject-area specialists Provides a comprehensive review of the field Up to date with the latest developments and research Editors Dr. Mesfin A. Kebede obtained his PhD in Metallurgical Engineering from Inha University, South Korea. He is now a principal research scientist at Energy Centre of Council for Scientific and Industrial Research (CSIR), South Africa. He was previously an assistant professor in the Department of Applied Physics and Materials Science at Hawassa University, Ethiopia. His extensive research experience covers the use of electrode materials for energy storage and energy conversion. Prof. Fabian I. Ezema is a professor at the University of Nigeria, Nsukka. He obtained his PhD in Physics and Astronomy from University of Nigeria, Nsukka. His research focuses on several areas of materials science with an emphasis on energy applications, specifically electrode materials for energy conversion and storage.
Download or read book Polymer based Solid State Batteries written by Daniel Brandell and published by Walter de Gruyter GmbH & Co KG. This book was released on 2021-07-19 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent years has seen a tremendous growth in interest for solid state batteries based on polymer electrolytes, with advantages of higher safety, energy density, and ease of processing. The book explains which polymer properties guide the performance of the solid-state device, and how these properties are best determined. It is an excellent guide for students, newcomers and experts in the area of solid polymer electrolytes.
Download or read book Electrochemical Energy Storage written by Jean-Marie Tarascon and published by John Wiley & Sons. This book was released on 2015-02-23 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: The electrochemical storage of energy has become essential in assisting the development of electrical transport and use of renewable energies. French researchers have played a key role in this domain but Asia is currently the market leader. Not wanting to see history repeat itself, France created the research network on electrochemical energy storage (RS2E) in 2011. This book discusses the launch of RS2E, its stakeholders, objectives, and integrated structure that assures a continuum between basic research, technological research and industries. Here, the authors will cover the technological advances as well as the challenges that must still be resolved in the field of electrochemical storage, taking into account sustainable development and the limited time available to us.
Download or read book Handbook Of Solid State Batteries And Capacitors written by M Z A Munshi and published by World Scientific. This book was released on 1995-05-11 with total page 739 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid state power sources have developed remarkably in the last three decades owing to improvements in technology and a greater understanding of the underlying basic sciences. In particular, a greater impetus has recently been placed in developing and commercializing small, lightweight, and highly energetic solid state power sources driven by demands from portable consumer electronics, medical technology, sensors, and electric vehicles. This comprehensive handbook features contributions by forerunners in the field of solid state power source technology from universities, research organizations, and industry. It is directed at the physicist, chemist, materials scientist, electrochemist, electrical engineer, science students, battery and capacitor technologists, and evaluators of present and future generations of power sources, as a reference text providing state-of-the-art reviews on solid state battery and capacitor technologies, and also insights into likely future developments in the field. The volume covers a comprehensive series of articles that deal with the fundamental aspects and experimental aspects of solid state power sources, an in-depth discussion on the state of the various technologies, and applications of these technologies. A description of the recent developments on solid state capacitor technology, and a comprehensive list of references in each and every article will help the reader with an encyclopedia of hidden information. The organization of the material has been carefully divided into thirty-one chapters to ensure that the handbook is thoroughly comprehensive and authoritative on the subject for the reader.
Download or read book Modulating Ion Aggregation and Mobility in Ionomers written by David Caldwell and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer electrolyte research has the potential to revolutionize battery technology, similar to what was seen during the emergence of Lithium Ion batteries. Polymers have the advantage over volatile organic liquid electrolytes with respect to their superior mechanical properties and electrochemical stability. Before polymer electrolytes can take the place of their liquid counterparts, limitations involving ion transport must be addressed. The room temperature ionic conductivity of solid polymer electrolytes, 10-5 S/cm or lower, is below the industry set goal of 10-3 S/cm, despite decades of research. This dissertation provides new insights into the underlying mechanisms of ion transport in polymer electrolytes and their relations to the polymer host matrix. By taking advantage of these transport mechanisms, new polymer electrolytes can be designed to meet the growing demand for safe portable energy.Ionomers are a particular class of polymer electrolytes, where one of the ionic species is bound to the polymer backbone. Binding the anion to the polymer backbone reduces the formation of anionic concentration gradients and increases the cationic transference number, both desired properties for electrolytes used in batteries. The ionomer in this work was selected because of the availability of experimental and simulation data, as well as previous research indicating its potential to decouple the mechanical properties of the polymer from ion transport. The decoupling of these properties enables the development of a dendrite suppressing electrolyte. By suppressing dendrites, alkali metal can be used as an anode, resulting in increased volumetric and gravimetric energy density. The underlying mechanism which enables this decoupling is not well understood in literature, but is postulated to involve ion aggregates.This dissertation explores the relationships between ion aggregation, ion transport, and mechanical properties in ionomers. Ion aggregation is controlled by varying the concentration of ions using two approaches. The low ion content systems are studied by increasing the fraction of functionalized isophthalate groups along the ionomer chain. The high ion content systems are studied by reducing the number of poly(ethylene oxide) monomers between isophthalate groups. Temperature was varied as a third parameter to construct a more complete description of ion aggregation and transport.This work shows that ion transport is accurately described by jump diffusion, which involves discreet jumps between coordination sites of oxygen atoms. This model is then further decomposed into three main categories; ion transport through poly(ethylene oxide), ion aggregates, or the interface between poly(ethylene oxide) and ion aggregates. At low ion content, the majority of ion transport is through the poly(ethylene oxide) backbone. As ion content is increased, the formation of ion aggregates provides channels through which ions jump without directly interacting with poly(ethylene oxide). The transition from a poly(ethylene oxide) dominate transport to ion aggregate dominate transport explains the observed experimental relationship of conductivity and ion content.Percolation theory is used as a foundation to describe ion aggregation below the aggregate percolation threshold. A model is developed which reproduces the distribution of ion aggregate sizes and is shown to be applicable across a wide range of ion content and temperature. This new framework for describing ion aggregation has the potential to be expanded to cover a larger range of electrolytes.Finally, a series of uniaxial stress-strain simulations demonstrate the impact of ion aggregation on mechanical properties. These results are then used to construct a time-temperature-ion content master curve which provides an estimate of the ion content necessary for dendrite suppression.
Download or read book Impedance Spectroscopy written by Evgenij Barsoukov and published by John Wiley & Sons. This book was released on 2018-03-22 with total page 1088 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Essential Reference for the Field, Featuring Protocols, Analysis, Fundamentals, and the Latest Advances Impedance Spectroscopy: Theory, Experiment, and Applications provides a comprehensive reference for graduate students, researchers, and engineers working in electrochemistry, physical chemistry, and physics. Covering both fundamentals concepts and practical applications, this unique reference provides a level of understanding that allows immediate use of impedance spectroscopy methods. Step-by-step experiment protocols with analysis guidance lend immediate relevance to general principles, while extensive figures and equations aid in the understanding of complex concepts. Detailed discussion includes the best measurement methods and identifying sources of error, and theoretical considerations for modeling, equivalent circuits, and equations in the complex domain are provided for most subjects under investigation. Written by a team of expert contributors, this book provides a clear understanding of impedance spectroscopy in general as well as the essential skills needed to use it in specific applications. Extensively updated to reflect the field’s latest advances, this new Third Edition: Incorporates the latest research, and provides coverage of new areas in which impedance spectroscopy is gaining importance Discusses the application of impedance spectroscopy to viscoelastic rubbery materials and biological systems Explores impedance spectroscopy applications in electrochemistry, semiconductors, solid electrolytes, corrosion, solid state devices, and electrochemical power sources Examines both the theoretical and practical aspects, and discusses when impedance spectroscopy is and is not the appropriate solution to an analysis problem Researchers and engineers will find value in the immediate practicality, while students will appreciate the hands-on approach to impedance spectroscopy methods. Retaining the reputation it has gained over years as a primary reference, Impedance Spectroscopy: Theory, Experiment, and Applications once again present a comprehensive reference reflecting the current state of the field.
Download or read book Polymer Electrolytes written by Tan Winie and published by John Wiley & Sons. This book was released on 2020-02-18 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of the main characterization techniques of polymer electrolytes and their applications in electrochemical devices Polymer Electrolytes is a comprehensive and up-to-date guide to the characterization and applications of polymer electrolytes. The authors ? noted experts on the topic ? discuss the various characterization methods, including impedance spectroscopy and thermal characterization. The authors also provide information on the myriad applications of polymer electrolytes in electrochemical devices, lithium ion batteries, supercapacitors, solar cells and electrochromic windows. Over the past three decades, researchers have been developing new polymer electrolytes and assessed their application potential in electrochemical and electrical power generation, storage, and conversion systems. As a result, many new polymer electrolytes have been found, characterized, and applied in electrochemical and electrical devices. This important book: -Reviews polymer electrolytes, a key component in electrochemical power sources, and thus benefits scientists in both academia and industry -Provides an interdisciplinary resource spanning electrochemistry, physical chemistry, and energy applications -Contains detailed and comprehensive information on characterization and applications of polymer electrolytes Written for materials scientists, physical chemists, solid state chemists, electrochemists, and chemists in industry professions, Polymer Electrolytes is an essential resource that explores the key characterization techniques of polymer electrolytes and reveals how they are applied in electrochemical devices.
Download or read book Fast Ion Transport in Solids written by B. Scrosati and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 375 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main motivation for the organization of the Advanced Research Workshop in Belgirate was the promotion of discussions on the most recent issues and the future perspectives in the field of Solid State lonics. The location was chosen on purpose since Belgirate was the place were twenty years ago, also then under the sponsorship of NATO, the very first international meeting on this important and interdisciplinary field took place. That meeting was named "Fast Ion Transport in Solids" and gathered virtually everybody at that time having been active in any aspect of motion of ions in solids. The original Belgirate Meeting made for the first time visible the technological potential related to the phenomenon of the fast ionic transport in solids and, accordingly, the field was given the name "Solid State lonics". This field is now expanded to cover a wide range of technologies which includes chemical sensors for environmental and process control, electrochromic windows, mirrors and displays, fuel cells, high performance rechargeable batteries for stationary applications and electrotraction, chemotronics, semiconductor ionics, water electrolysis cells for hydrogen economy and other applications. The main idea for holding an anniversary meeting was that of discussing the most recent issues and the future perspectives of Solid State lonics just twenty years after it has started at the same location on the lake Maggiore in North Italy.
Download or read book Polymer Electrolytes written by César Sequeira and published by Elsevier. This book was released on 2010-08-30 with total page 640 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer electrolytes are electrolytic materials that are widely used in batteries, fuel cells and other applications such as supercapacitors, photoelectrochemical and electrochromic devices. Polymer electrolytes: Fundamentals and applications provides an important review of this class of ionic conductors, their properties and applications.Part one reviews the various types of polymer electrolyte compounds, with chapters on ceramic polymer electrolytes, natural polymer-based polymer electrolytes, composite polymer electrolytes, lithium-doped hybrid polymer electrolytes, hybrid inorganic-organic polymer electrolytes. There are also chapters on ways of characterising and modelling polymer electrolytes. Part two discusses applications such as solar cells, supercapacitors, electrochromic and electrochemical devices, fuel cells and batteries.With its distinguished editors and international team of contributors, Polymer electrolytes: Fundamentals and applications is a standard reference for all those researching and using polymer electrolytes in such areas as battery and fuel cell technology for automotive and other applications. Provides an important review of this class of ionic conductors, their properties and applications in practical devices Explores categories of polymer electrolytes and conductivity measurements Features a comprehensive analysis of current developments in polymer electrolytes and highlights a new type of polymer electrolyte
Download or read book Synthesis and Characterization of Solid Polymer Electrolytes written by Anji Reddy Polu and published by LAP Lambert Academic Publishing. This book was released on 2012-08 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ion conducting polymer electrolytes in thin flexible forms show great technological potentials to fabricate all-solid-state mini/micro electrochemical power sources viz. batteries, fuel cells, supercapacitors etc. This book contains the synthesis and characterization of solid polymer electrolytes, is mainly focused on the objectives: to develop some new Mg2+ ion conducting solid polymer and composite polymer electrolytes using a novel solution casting technique; to characterize these materials using various models and experimental techniques; to understand the ion transport properties; subsequently, to employ these solid polymer electrolytes in the fabrication of solid state batteries and study the cell performances under constant load. This book is also provide the basic ideas of ion conduction mechanism in polymer electrolytes and also explained various models for transport phenomenon.
Download or read book De Brettes seigneurs du Cros de Cieux de Masrocher etc marquis de Brettes du Cros en Limosin written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Polymerized Ionic Liquids written by Ali Eftekhari and published by Royal Society of Chemistry. This book was released on 2017-09-18 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series covers the fundamentals and applications of different smart material systems from renowned international experts.
Download or read book Polymer Electrolytes written by Fiona M. Gray and published by . This book was released on 1997 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt: The first book in the RSC Materials Monographs Series, Polymer Electrolytes brings together the latest research in this important subject. The emphasis is on practical materials and it includes an excellent classification of polymer electrolytes, a comprehensive look at material types and an important discussion of the commercial prospects. The text is designed for research workers from a variety of disciplines and looks at some of the history as well as the future of the subject, including reference to computer simulation. Overall, Polymer Electrolytes is an important review of the structural, physical and electrical properties of the materials which are competing for a place in the future energy generation, storage and distribution markets.
Download or read book Solid Electrolytes and Their Applications written by E. Subbarao and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 309 pages. Available in PDF, EPUB and Kindle. Book excerpt: Defect solid state has been an area of major scientific and technological interest for the last few decades, the resulting important applications sus taining this interest. Solid electrolytes represent one area of defect solid state. The early work on defect ionic crystals and, in particular, the classic results of Kiukkola and Wagner in 1957 on stabilized zirconia and doped thoria laid the foundation for a systematic study of solid electrolytes. In the same year, Ure reported on the ionic conductivity of calcium fluoride. Since then, intense worldwide research has advanced our understanding of the defect structure and electrical conductivity of oxygen ion conductors such as doped zirconia and thoria and of the fluorides. This paved the way for thermo dynamic and kinetic studies using these materials and for technological applications based on the oxygen ion conductors. In the last few years we have seen the emergence of two new classes of solid electrolytes of great signifi cance: the fJ-aluminas and the silver ion conductors. The significance of these discoveries is that now (i) solid electrolytes are available which at room temperature exhibit electrical conductivity comparable to that of liquid electrolytes, (ii) useful electrical conductivity values can be achieved over a wide range of temperature and ambient conditions, and (iii) a wide variety of ions are available as conducting species in solids. The stage is therefore set for a massive effort at developing applications.
Download or read book Handbook Of Solid State Batteries Second Edition written by Nancy J Dudney and published by World Scientific. This book was released on 2015-07-09 with total page 835 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid-state batteries hold the promise of providing energy storage with high volumetric and gravimetric energy densities at high power densities, yet with far less safety issues relative to those associated with conventional liquid or gel-based lithium-ion batteries. Solid-state batteries are envisioned to be useful for a broad spectrum of energy storage applications, including powering automobiles and portable electronic devices, as well as stationary storage and load-leveling of renewably generated energy. This comprehensive handbook covers a wide range of topics related to solid-state batteries, including advanced enabling characterization techniques, fundamentals of solid-state systems, novel solid electrolyte systems, interfaces, cell-level studies, and three-dimensional architectures. It is directed at physicists, chemists, materials scientists, electrochemists, electrical engineers, battery technologists, and evaluators of present and future generations of power sources. This handbook serves as a reference text providing state-of-the-art reviews on solid-state battery technologies, as well as providing insights into likely future developments in the field. It is extensively annotated with comprehensive references useful to the student and practitioners in the field.
Download or read book Ion Transport in Semicrystalline Solid Polymer Electrolytes written by Shan Cheng and published by . This book was released on 2014 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid polymer electrolytes (SPEs) with both high room temperature ionic conductivity and mechanical integrity are highly desirable for all-solid-state lithium batteries. Linear polyethylene oxide (PEO) represents the simplest yet most attractive solvating polymer due to its capability to form complex with a selected number of alkali metal salt, especially lithium salt. The ether oxygen on PEO backbone coordinates with Li+ and the transport of the latter is facilitated through segmental motion of the polymer chain. However, the highly crystalline nature due to stereoregularity and flexibility of the polymer chain complicate the ion transport mechanism. PEO crystallization has been long considered to be detrimental to ion transport as it results in a decrease of the effective fraction of amorphous conducting phase, slower polymer chain dynamics and more tortuous pathways for ion transport. However, a quantitative analysis of crystallization effect on the ionic conductivity is challenging since these factors are always coupled. In this dissertation, we demonstrated that the two factors, namely tethered chain/dynamic and tortuosity/structural effects can be decoupled by preparing polymer membranes with controlled crystal orientation and measuring the in-plane and through-plane conductivity of the orientated membrane. Moderate conductivity anisotropy as a result of PEO lamellar orientation was first observed in a solution cast PEO SPE. We further used graphene oxide to enhance the crystal orientation, hence the conductivity anisotropy. To quantitatively characterize the crystallization effect, a model electrolyte system consists of PEO single crystals with well controlled crystal structure, size, crystallinity and orientation were fabricated. Ion conduction was confined within the chain fold region, and guided by the crystalline lamellae. We demonstrated that at low ion content, the in-plane conductivity was 1000-2000 times greater than through-plane one due to the tortuosity effect, which was described using Nielsen's permeability model. Contradictory to the general view, the dynamic effect was negligible at moderate ion contents and the overall conductivity was mainly controlled by crystal orientation, strong Li-PEO interaction and Li+ aggregation. Our results demonstrated that semicrystalline polymer can be viewed as a two phase model which morphologically mimicking the popular systems such as block copolymers and polyolefin porous membranes. By controlling crystallization behavior, mechanically robust semi-crystalline SPE with high room temperature conductivity is feasible.
