Read Books Online and Download eBooks, EPub, PDF, Mobi, Kindle, Text Full Free.
Microstructured Electrodes For Electrochemical Energy Storage
Download Microstructured Electrodes For Electrochemical Energy Storage full books in PDF, epub, and Kindle. Read online Microstructured Electrodes For Electrochemical Energy Storage ebook anywhere anytime directly on your device. Fast Download speed and no annoying ads. We cannot guarantee that every ebooks is available!
Book Synopsis Microstructured Electrodes for Electrochemical Energy Storage by : Leland Cramer Smith
Download or read book Microstructured Electrodes for Electrochemical Energy Storage written by Leland Cramer Smith and published by . This book was released on 2015 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lithium-ion batteries and electric double-layer capacitors are two types of electrochemical energy storage devices that are characterized by high energy density and high power density, respectively. While these technologies have been successfully applied in applications such as personal electronics and electric vehicles, the potential for microscale energy storage devices remains unrealized. In this dissertation novel materials and processing methods are introduced for the fabrication of microscale lithium-ion batteries and electric double-layer capacitors. In the area of electric double-layer capacitors, carbon electrodes are fabricated by electrophoretic deposition and self-assembly and paired with a novel solid-state ionogel electrolyte. We successfully fabricate an on-chip electric double-layer capacitor that is just 0.14 mm2 in electrode area, which is about 40 times smaller than any device so far reported in the literature. Microscale lithium-ion battery electrodes are prepared by micro-molding techniques. The composition of the anode and cathode are tuned to maximize mechanical durability, electronic and ionic conductivity. SU-8 photoresist is presented as a novel electrolyte material for conformally patterning 3D anode arrays. Both 2D and 3D lithium-ion batteries using SU-8 are presented. Initial results suggest that a working 3D microbattery based on SU-8 electrolyte is feasible. Finally, more fundamental research is presented on the sol-gel encapsulation of lithium-polysulfide liquid catholytes. By carefully tuning the non-hydrolytic sol-gel reaction, water-reactive lithium-polysulfides are successfully encapsulated to form a polysulfide gel that retains its lithium storage activity. This polysulfide gel is used to fabricate a fully solid-state lithium-sulfur battery.
Book Synopsis Electrode Materials for Energy Storage and Conversion by : Mesfin A. Kebede
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.
Book Synopsis Role of Electrode Microstructure in Performance of Electrochemical Energy Storage Devices by : Mohammad Amin Sadeghi
Download or read book Role of Electrode Microstructure in Performance of Electrochemical Energy Storage Devices written by Mohammad Amin Sadeghi and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: "Reactive transport was studied in two different systems of diffusion-dominated and combined advection-diffusion, which are relevant in the context of fuel cells and redox flow batteries. The pore network approach was employed for modeling transport in these systems. This approach enabled the study of meaningfully large domains that otherwise would be infeasible using typical pore-scale modeling approaches, usually referred as direct numerical simulation (DNS). As for diffusion-dominated systems, reactive transport in a hierarchically porous particle was considered, and the effect of the internal structure was studied. It was found that using a hierarchy of porosity, a 350% increase in power density could be achieved, merely by manipulating the internal structure. It was also found that using smaller-sized templates for creating macropores within a nanoporous particle leads to much larger performance gains when increasing the volume fraction of macropores.For energy storage devices in which mass transfer is a result of both diffusion and advection, it was found that the most common approach for modeling dispersion in pore networks is too crude an approximation. Therefore, in a comprehensive study, this discrepancy was demonstrated via comparison with DNS as ground truth and was followed by introducing a novel approach adapted from the CFD literature. The developed pore-scale model was shown to agree remarkably well with the results obtained from DNS with a maximum relative error of 0.5%. Finally, the developed pore-scale model was used in a multiphysics pore-network study of redox flow batteries, demonstrated in the context of a hydrogen bromine system. The effect of porosity at constant fiber diameter and fiber alignment on the overall performance of the battery was studied, both of which can be manipulated during electrode manufacture. It was shown that despite the decrease in available reactive surface area, the battery generally performed better at higher porosities. Furthermore, it was shown that aligning the fibers along the flow direction, while initially helping the electrode performance, leads to diminishing returns beyond slight alignment. This phenomenon was shown to correlate with the diminishing return in permeability of the electrode as alignment increased. This observation, along with the trend in performance against porosity shows the significance of permeability as the dominant factor in performance of such systems.This thesis highlights pore-network modeling as a practical way to model transport in energy storage devices at the pore-scale with minimal computing requirements. Developing such a modeling framework paves the way for better understanding how the internal structure of these devices affects their performance, serving as a guideline for making better prototypes with higher energy densities. The power of this framework was demonstrated in the context of two promising energy storage devices, but we expect that the different studies presented in this thesis be the cornerstone for many future studies, through which a more complete understanding of multiphysics at pore-scale will be achieved"--
Book Synopsis Development of Surface-modified Electrodes for Electrochemical Energy Storage Applications by : Hao Tian Shi
Download or read book Development of Surface-modified Electrodes for Electrochemical Energy Storage Applications written by Hao Tian Shi and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent commercialization efforts made in the fields of flexible sensors, low-energy Bluetooth transmitters, and low-power thin-film electronics have contributed to significant fast-paced growth in the smart wearable industry. This drastic paradigm shift in the flexible electronics component design has fuelled an evolution in the flexible personal electronics, biomedical, athletics, and logistics industries as more flexible, thin-film products are offered. Flexible thin-film electrochemical capacitors (EC) or supercapacitors are energy storage solutions that offer both high energy and power densities resulting from the exceptional high electrode specific surface area and appropriately tuned electrode/electrolyte interface. To meet both the electrochemical and mechanical requirements, several aspects of the electrode design was to be considered in the proposed flexible EC devices: a) Areal- and gravimetric specific capacitance; b) Charge-discharge cycling properties; c) Mechanical bending and flexing behaviours; and d) Environmental stability. In this work, novel facile techniques in fabricating flexible EC electrodes with micro- and nano-structured surface modification have been proposed to produce high-performing flexible EC electrodes with additional intrinsic multi-functionalities, such as piezoresistive sensors and breathing sensors, along with energy storage. Herein, to create facile pathways for fabricating flexible, high-performance EC electrodes, this thesis has been divided into the following studies: The first study focuses on the design of a novel environmental-controlled self-assembly method, where polyaniline (PAni) nanorod structures were grown on polyacrylonitrile (PAN) nanofibers for high-surface-area textile electrochemical capacitor electrodes with intrinsic piezoresistive tactile sensing capabilities. The second study relied on a novel laser-assisted photochemical reduction method to produce reduced graphene oxide micro-ribbon textile electrode directly on a liquid surface, which can be transfer printed onto any substrate for both supercapacitors and breath sensor applications. The third study validated a method for creating hierarchically structured multilayer reduced graphene oxide for flexible intercalated supercapacitor electrodes where simultaneous reduction and nitrogen-doping were successfully achieved. The last study explored the possibility of creating a multi-layered flexible polypyrrole micro-foam/carbon nanotube composite electrodes for flexible supercapacitor devices via the creation of three-dimensional polypyrrole microsphere architecture.
Book Synopsis Next-generation Electrochemical Energy Storage Devices by : Yuxin Tang
Download or read book Next-generation Electrochemical Energy Storage Devices written by Yuxin Tang and published by Frontiers Media SA. This book was released on 2020-08-21 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Nanomaterials for Electrochemical Energy Storage by : Rinaldo Raccichini
Download or read book Nanomaterials for Electrochemical Energy Storage written by Rinaldo Raccichini and published by Elsevier. This book was released on 2021-11-24 with total page 388 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomaterials for Electrochemical Energy Storage: Challenges and Opportunities, Volume Nineteen provides an objective, realistic overview on the use of nanomaterials for various rechargeable electrochemical energy storage systems. It delivers a clear message on opportunities and critical aspects for the application of nanomaterials in currently available commercial devices (i.e., lithium-ion, supercapacitors, lithium-ion capacitors) and in the most promising battery technologies (e.g., lithium-sulphur, sodium-ion, metal-air, multivalent-ion batteries, dual-ion). In addition, it covers the use of nanomaterials on two of the most promising research pathways, specifically solid electrolytes and nanostructured alkali metal interfaces. Finally, the book outlines future use scenarios in developed and industrial applications. Nanomaterials have been considered as the “holy grail of electrochemical energy storage during recent decades. Compounds and composites made of nanomaterials have opened unexpected research avenues, allowing entirely new classes of materials to be explored. Covers the major nanomaterials classes used for electrochemical energy storage devices Assesses the major challenges of using nanomaterials for energy storage Shows how the use of nanomaterials can lead to lower cost and more efficient energy storage products and devices
Book Synopsis Combining Computation and Experimentation for Accelerated Understanding of Electrode Microstructure in Redox Flow Batteries by : Kevin M. Tenny
Download or read book Combining Computation and Experimentation for Accelerated Understanding of Electrode Microstructure in Redox Flow Batteries written by Kevin M. Tenny and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Improving grid energy storage is crucial for integrating renewable energy options and reducing anthropogenic carbon emissions. Redox flow batteries (RFBs) are a promising long-duration energy storage technology, whose modular energy and power scaling complements diurnal, weather-dependent electricity generation. Pumped from external tanks, liquid-phase electrolytes containing redox active species are dispersed through the RFB reactor to undergo an interconversion of oxidative states, releasing electrons to pass through external loads before the electrolytes return to their respective tanks. The electrodes are encased in the RFB reactor and fulfill several critical functions for successful operation: They facilitate advection through the porous media, afford active sites for redox events, and transfer liberated electrons through a solid matrix. Consequently, electrode topologies influence multiple transport scales that require precise metering to ascertain performance metrics. However, most electrode analysis relies on experimentation or modeling to analyze structures that engender favorable performance; but when combined, the two can provide a deep analysis of electrode structure/function relationships. In this dissertation, I first provide an assessment of the U.S. long-duration energy storage market, outlining the industry competitiveness and attractiveness, as well as discussing headwinds for RFBs seeking to enter the market. This work then focuses on exploring multiple electrode topologies, both experimentally and computationally, drawing relationships between fluid dynamic and electrochemical functions in diverse electrolyte environments. Further, I examine a promising potentiodynamic electrochemical method that can improve our understanding of flow cell performance. Next, I demonstrate the progression of high- and low-dimensional macrohomogenous models and their applications for screening structural and operational benchmarks, culminating in regressive models for targeted domain optimization. I conclude with parameter sweeps across artificially designed electrodes, revealing key microstructural features that lead to augmented functionality before offering my perspective on various business and research directions for the field.
Download or read book Energy Storage written by Robert Huggins and published by Springer. This book was released on 2015-11-13 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy Storage explains the underlying scientific and engineering fundamentals of all major energy storage methods. These include the storage of energy as heat, in phase transitions and reversible chemical reactions, and in organic fuels and hydrogen, as well as in mechanical, electrostatic and magnetic systems. Updated coverage of electrochemical storage systems considers exciting developments in materials and methods for applications such as rapid short-term storage in hybrid and intermittent energy generation systems, and battery optimization for increasingly prevalent EV and stop-start automotive technologies. This nuanced coverage of cutting-edge advances is unique in that it does not require prior knowledge of electrochemistry. Traditional and emerging battery systems are explained, including lithium, flow and liquid batteries. Energy Storage provides a comprehensive overview of the concepts, principles and practice of energy storage that is useful to both students and professionals.
Book Synopsis Micro Energy Harvesting by : Danick Briand
Download or read book Micro Energy Harvesting written by Danick Briand and published by John Wiley & Sons. This book was released on 2015-06-22 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt: With its inclusion of the fundamentals, systems and applications, this reference provides readers with the basics of micro energy conversion along with expert knowledge on system electronics and real-life microdevices. The authors address different aspects of energy harvesting at the micro scale with a focus on miniaturized and microfabricated devices. Along the way they provide an overview of the field by compiling knowledge on the design, materials development, device realization and aspects of system integration, covering emerging technologies, as well as applications in power management, energy storage, medicine and low-power system electronics. In addition, they survey the energy harvesting principles based on chemical, thermal, mechanical, as well as hybrid and nanotechnology approaches. In unparalleled detail this volume presents the complete picture -- and a peek into the future -- of micro-powered microsystems.
Book Synopsis Microsupercapacitors by : Kazufumi Kobashi
Download or read book Microsupercapacitors written by Kazufumi Kobashi and published by Woodhead Publishing. This book was released on 2021-10-01 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Microsupercapacitors systematically guides the reader through the key materials, characterization techniques, performance factors and potential applications and benefits to society of this emerging electrical energy storage solution. The book reviews the technical challenges in scaling down supercapacitors, covering materials, performance, design and applications perspectives. Sections provide a fundamental understanding of microsupercapacitors and compare them to existing energy storage technologies. Final discussions consider the factors that impact performance, potential tactics to improve performance, barriers to implementation, emerging solutions to those barriers, and a future outlook. This book will be of particular interest to materials scientists and engineers working in academia, research and development. Provides a concise introduction of the fundamental science, related technological challenges, and solutions that microsupercapacitors can offer Compares microsupercapacitors with current technologies Reviews the applications of new strategies and the challenge of scaling down supercapacitors Covers the most relevant applications, including energy storage, energy harvesting, sensors and biomedical devices
Book Synopsis NMR and MRI of Electrochemical Energy Storage Materials and Devices by : Yong Yang
Download or read book NMR and MRI of Electrochemical Energy Storage Materials and Devices written by Yong Yang and published by Royal Society of Chemistry. This book was released on 2021-06-17 with total page 573 pages. Available in PDF, EPUB and Kindle. Book excerpt: Energy storage material is a hot topic in material science and chemistry. During the past decade, nuclear magnetic resonance (NMR) has emerged as a powerful tool to aid understanding of the working and failing mechanisms of energy storage materials and devices. The aim of this book is to introduce the use of NMR methods for investigating electrochemical storage materials and devices. Presenting a comprehensive overview of NMR spectroscopy and magnetic resonance imaging (MRI) on energy storage materials, the book will include the theory of paramagnetic interactions and relevant calculation methods, a number of specific NMR approaches developed in the past decade for battery materials (e.g. in situ, ex situ NMR, MRI, DNP, 2D NMR, NMR dynamics) and case studies on a variety of related materials. Helping both NMR spectroscopists entering the field of batteries and battery specialists seeking diagnostic methods for material and device degradation, it is written by leading authorities from international research groups in this field.
Book Synopsis Experiments and Analysis of Evaporation in Electrode Processing for Energy Storage by : Malcolm Thomas Stein
Download or read book Experiments and Analysis of Evaporation in Electrode Processing for Energy Storage written by Malcolm Thomas Stein and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite the wide range of ideal applications for LIBs, there is still room for improvement in their performance. While novel electrode materials are typically prohibitively expensive to develop and implement, changes to processing steps represent a cost-effective measure for improving the performance of LIBs that can be implemented almost immediately. Although each step of processing can impact the final microstructure of LIB electrodes, perhaps the most important step is the last: drying. This is when the final microstructure of the electrode is set. During this solvent evaporation stage, a non-uniform distribution of electrode constituents can develop in cases where the solvent evaporation rate exceeds that of the diffusion rate of the mobile electrode constituents. An even distribution of carbon black and binder throughout the electrode is crucial to ensuring the minimization of internal cell resistance, and therefore the maximum performance for a given electrode composition. In this work, we experimentally evaluate the impact of evaporation rate on the distribution of binder and carbon black in the electrode microstructure and the subsequent electrochemical performance. Chapter I introduces some basic concepts in Lithium-ion batteries and a literature overview of related concepts. Chapter II details the experimental procedures and equipment utilized in this study. Chapter III details the results of experimental evaluation of evaporate rate and a 1-D analysis performed to determine the resulting particle distribution as a function of drying rate. Chapter IV details the post-processing calendering used on electrodes and its result on electrode performance. Lastly, Chapter V details the summary and future outlook for this work. My analysis has shown that a slower two-stage dry - as opposed to a high-rate single stage dry - allows for an optimal, more even volumetric distribution of binder and conductive additive, thus reducing cell resistance and improving electrochemical performance. The electronic version of this dissertation is accessible from http://hdl.handle.net/1969.1/155130
Book Synopsis Electrochemical Systems by : John Newman
Download or read book Electrochemical Systems written by John Newman and published by John Wiley & Sons. This book was released on 2012-11-27 with total page 671 pages. Available in PDF, EPUB and Kindle. Book excerpt: The new edition of the cornerstone text on electrochemistry Spans all the areas of electrochemistry, from the basicsof thermodynamics and electrode kinetics to transport phenomena inelectrolytes, metals, and semiconductors. Newly updated andexpanded, the Third Edition covers important new treatments, ideas,and technologies while also increasing the book's accessibility forreaders in related fields. Rigorous and complete presentation of the fundamentalconcepts In-depth examples applying the concepts to real-life designproblems Homework problems ranging from the reinforcing to the highlythought-provoking Extensive bibliography giving both the historical developmentof the field and references for the practicing electrochemist.
Download or read book Energy Storage written by Robert Huggins and published by Springer Science & Business Media. This book was released on 2010-08-12 with total page 424 pages. Available in PDF, EPUB and Kindle. Book excerpt: Introduction Energy is necessary for a number of reasons, the most basic and obvious involve the preparation of food and the provision of heat to make life comfortable, or at least, bearable. Subsequently, a wide range of technological uses of energy have emerged and been developed, so that the availability of energy has become a central issue in society. The easiest way to acquire useful energy is to simply ?nd it as wood or a hydrocarbon fossil fuel in nature. But it has often been found to be advantageous to convert what is simply available in nature into more useful forms, and the processing and conversion of raw materials, especially petrochemicals have become a very large industry. Wood Wood has been used to provide heat for a great many years. In some cases, it can be acquired as needed by foraging, or cutting, followed by simple collection. When it is abundant there is relatively little need for it to be stored. However, many societies have found it desirable to collect more wood than is immediately needed during warm periods during the year, and to store it up for use in the winter, when the needs are greater, or its collection is not so convenient. One can still see this in some locations, such as the more remote communities in the Alps, for example. One might think of this as the oldest and simplest example of energy storage.
Download or read book Electrocatalysis written by Minhua Shao and published by Springer. This book was released on 2021-03-21 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Topics in Current Chemistry Collections presents critical reviews from the journal Topics in Current Chemistry organized in topical volumes. The scope of coverage is all areas of chemical science including the interfaces with related disciplines such as biology, medicine and materials science. The goal of each thematic volume is to give the non-specialist reader, whether in academia or industry, a comprehensive insight into an area where new research is emerging which is of interest to a larger scientific audience.Each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years are presented using selected examples to illustrate the principles discussed. The coverage is not intended to be an exhaustive summary of the field or include large quantities of data, but should rather be conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. Contributions also offer an outlook on potential future developments in the field.
Book Synopsis High Energy and Power Co-continuous Electrodes Derived from Bijels by : Jessica Witt
Download or read book High Energy and Power Co-continuous Electrodes Derived from Bijels written by Jessica Witt and published by . This book was released on 2015 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: Next-generation energy storage materials aim to combine the best characteristics of batteries and supercapacitors, producing devices that concurrently deliver high energy and power densities. In order to achieve this goal, the kinetics of ion and electron transport within the electrodes must be enhanced while maintaining a large volume fraction of electrolytically active material for energy storage. In this regard, the idealized electrode microstructure has been envisioned as a three-dimensional, co-continuous arrangement of percolating domains that allow for large interfacial contact between the constituent phases and low-resistance paths for ion and electron transport. In this dissertation, I report a novel method to produce this unique microstructure through the use of soft matter templates derived from bicontinuous interfacially jammed emulsion gels (bijels). These non-equilibrium soft materials inherently have a co-continuous microstructure, where two interpenetrating fluid domains are kinetically arrested through jamming of particles at the fluid-fluid interface during spinodal decomposition. The neutrally-wetting colloids adsorb to the fluid interface upon phase separation and become jammed when the interfacial area is sufficiently reduced to just accommodate them. The characteristic domain size, which establishes both the pore diameter and the internal surface area, is controlled solely through the overall colloid volume fraction and can be tuned over a wide range. Through simple chemical post processing steps, bijels are converted to electrolytically active composites. Combined, the morphological control afforded during bijel formation and our chemical processing steps allow for independent tailoring of the microstructural parameters that govern the electrode's electrochemical performance. In this work, I present composite electrodes that I have synthesized through this route and demonstrate how their salient electrochemical characteristics are dictated by these morphological parameters, allowing for concurrent delivery of high energy and power, bridging the gap between modern batteries and supercapacitors.
Book Synopsis Fabrication of Flexible and Stretchable Li Ion Microbatteries by : Mohamed Aboulfotouh Sayed Nasreldin
Download or read book Fabrication of Flexible and Stretchable Li Ion Microbatteries written by Mohamed Aboulfotouh Sayed Nasreldin and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nowadays, energy storage microsystems composed of thin films are attracting attention to ensurethe autonomy of portable microelectronic devices. Recently, significant progress has been made inthe development of flexible and expandable microbatteries. However, the technological challengeremains to design microbatteries with high electrochemical and mechanical performance to avoidfracture problems during use. It is therefore important to study and develop new strategies for themanufacture of expandable microbatteries with higher energy and power densities.The innovative approach of this thesis is based on the fabrication of high performance Li-ionmicrobatteries expandable by using expandable substrates. These substrates supportmicrostructured electrode arrays and are separated by a polymer electrolyte. This technologicalapproach has several advantages over those in the literature:- It allows greater surface coverage by the active materials,- Three-dimensional microstructured electrodes also increase the energy and power densities ofthe microbattery.- The structuring of the electrodes also prevents fracture and delamination of the active materialsof the electrodes during mechanical stress.The significant progress of this work in the field of flexible and expandable Li-ion microbatteriesis detailed in this study.
