Download or read book Novel Polymer Electrolytes for Rechargeable Lithium Batteries written by Hong Hu and published by . This book was released on 1996 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Novel Polymer Electrolytes for Lithium Rechargeable Battery written by Wu Xu and published by . This book was released on 1999 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Novel Solid Polymer Electrolytes and Lithium Salts for Rechargeable Lithium Batteries written by Wendy Zhao and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Proceedings of the Symposium on Lithium Polymer Batteries written by John Broadhead and published by The Electrochemical Society. This book was released on 1997 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt:

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 Rechargeable Lithium Batteries written by Alejandro Franco and published by Elsevier. This book was released on 2015-04-07 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rechargeable Lithium Batteries: From Fundamentals to Application provides an overview of rechargeable lithium batteries, from fundamental materials, though characterization and modeling, to applications. The market share of lithium ion batteries is fast increasing due to their high energy density and low maintenance requirements. Lithium air batteries have the potential for even higher energy densities, a requirement for the development of electric vehicles, and other types of rechargeable lithium battery are also in development. After an introductory chapter providing an overview of the main scientific and technological challenges posed by rechargeable Li batteries, Part One of this book reviews materials and characterization of rechargeable lithium batteries. Part Two covers performance and applications, discussing essential aspects such as battery management, battery safety and emerging rechargeable lithium battery technologies as well as medical and aerospace applications. Expert overview of the main scientific and technological challenges posed by rechargeable lithium batteries Address the important topics of analysis, characterization, and modeling in rechargeable lithium batteries Key analysis of essential aspects such as battery management, battery safety, and emerging rechargeable lithium battery technologies

Download or read book Designing Electrolytes for Lithium Ion and Post Lithium Batteries written by Władysław Wieczorek and published by CRC Press. This book was released on 2021-06-23 with total page 345 pages. Available in PDF, EPUB and Kindle. Book excerpt: Every electrochemical source of electric current is composed of two electrodes with an electrolyte in between. Since storage capacity depends predominantly on the composition and design of the electrodes, most research and development efforts have been focused on them. Considerably less attention has been paid to the electrolyte, a battery’s basic component. This book fills this gap and shines more light on the role of electrolytes in modern batteries. Today, limitations in lithium-ion batteries result from non-optimal properties of commercial electrolytes as well as scientific and engineering challenges related to novel electrolytes for improved lithium-ion as well as future post-lithium batteries.

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 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 Synthesis and Characterization of Liquid and Polymer Electrolytes for Rechargeable Lithium Batteries written by Xiaoguang Sun and published by . This book was released on 2001 with total page 298 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymer Electrolyte Reviews written by J.R. MacCallum and published by Springer Science & Business Media. This book was released on 1989-10-31 with total page 366 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymer Electrolytes for a Rechargeable Li Ion Battery written by and published by . This book was released on 1996 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lithium-ion polymer electrolyte battery technology is attractive for many consumer and military applications. A Li(subscript x)C/Li{sub y}Mn2O4 battery system incorporating a polymer electrolyte separator base on novel Li-imide salts is being developed under sponsorship of US Army Research Laboratory (Fort Monmouth NJ). This paper reports on work currently in progress on synthesis of Li-imide salts, polymer electrolyte films incorporating these salts, and development of electrodes and cells. A number of Li salts have been synthesized and characterized. These salts appear to have good voltaic stability. PVDF polymer gel electrolytes based on these salts have exhibited conductivities in the range 10−4 to 103 S/cm.

Download or read book Polymer Electrolytes for Energy Storage Devices written by Prasanth Raghavan and published by CRC Press. This book was released on 2021-03-23 with total page 303 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer Electrolytes for Energy Storage Devices, Volume I, offers a detailed explanation of recent progress and challenges in polymer electrolyte research for energy storage devices. The influence of these electrolyte properties on the performance of different energy storage devices is discussed in detail. Features: • Discusses a variety of energy storage systems and their workings and a detailed history of LIBs • Covers a wide range of polymer-based electrolytes including PVdF, PVdF-co-HFP, PAN, blend polymeric systems, composite polymeric systems, and polymer ionic liquid gel electrolytes • Provides a comprehensive review of biopolymer electrolytes for energy storage applications • Suitable for readers with experience in batteries as well as newcomers to the field This book will be invaluable to researchers and engineers working on the development of next-generation energy storage devices, including materials, chemical, electrical, and mechanical engineers, as well as those involved in related disciplines.

Download or read book Polymer Electrolytes for Rechargeable Lithium sulfur Batteries written by Kazem Jeddi and published by . This book was released on 2015 with total page 97 pages. Available in PDF, EPUB and Kindle. Book excerpt: The lithium/sulfur (Li/S) battery is one of the most promising candidates for energy storage systems due to sulfur's high theoretical specific capacity at 1672 mAh g-1. This capacity is an order of magnitude higher than that of conventional electrodes and gives packaged Li/S cells an energy density of 400-600 W h kg-1, which is two or three times higher than that of current lithium-ion batteries. In addition, low cost, abundance and environmental friendliness of sulfur offer the opportunity to produce cheap, safe and commercializable high-energy density batteries. Despite these advantages, the practical application of Li/S batteries is still prevented by modest practical capacity, short cycle life and low Coulombic efficiency. These problems are mainly due to:(i) low electronic conductivity of sulfur, which leads to low sulfur utilization; (ii) generation of various forms of soluble intermediate lithium polysulfides during the electrochemical reactions, which dissolve in the electrolyte and induce the so-called shuttle effect causing irreversible loss of sulfur active material over repeat cycles; (iii) volume change of sulfur upon cycling, which leads to its mechanical rupture and, consequently, rapid degradation of the electrochemical performance. Since the early development of Li/S batteries by Abraham and Peled in the 1980s, a large number of studies have been done to understand the electrochemical mechanism of the Li/S cell and overcome its drawbacks. Studies have focused on increasing the electronic conductivity of sulfur by encapsulating sulfur with conducting materials such as porous carbon or conductive polymers, and suppressing polysulfide dissolution into the liquid electrolyte by coating with conductive polymers and oxides. It should be pointed out that most of the research efforts to improve the performance of Li/S batteries have focused on the cathode electrode. From the electrolyte perspective, the use of conventional liquid electrolytes deteriorates battery performance due to polysulfide dissolution and their shuttle between cathode and anode that leads to fast capacity degradation and low Coulombic efficiency. Moreover, the use of these liquid electrolytes raises safety concerns since they are prone to leakage and safety hazard. The motivation for this PhD work is to search for better electrolyte systems for Li/S batteries. We aim to study the effect of these electrolytes on the performance of Li/S batteries in conjunction with designed cathode materials using sulfur/conductive polymer and sulfur/carbon composites. In the first part of the thesis, we introduce gel polymer electrolytes (GPEs) into Li/S batteries with sulfur-polyacrylonitrile (S/PAN) composite cathodes. GPEs, consisting of solid matrices and embedded liquid electrolytes, may generally be defined as a polymer membrane that possesses ionic transport properties comparable to that of liquid electrolytes. In particular, for Li/S batteries, it is expected that the polymer membrane can act as a physical barrier, which can help control the dissolution of the polysulfide anions from the cathode and also prevent their migration to the anode. Specifically, the GPE was formed by trapping solutions of lithium hexafluorophosphate (LiPF6) in ethylene carbonate electrolyte in a poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP)-based polymer matrix. However, these Li/GPE/S cells suffer from performance fade after a few cycles due to the inability to retain liquid electrolyte in the GPE. A wide variety of methods were studied in order to improve the stability of the GPE and the performance of Li/S cells, including incorporation of layered nanoparticles, synthesis and addition of functionalized polymers and synthesis and addition of mesoporous nanoparticles. It was observed that incorporation of organically modified nanoparticles (OMMT) or functional polymer bearing inorganic domains reduces the pore size and improves the uniformity of pore size in the PVdF-HFP membrane, which prevents the release of electrolyte solution during cycling and suppresses the dissolution of polysulfides. The Li/S cell with the PVdF-HFP/OMMT nanocomposite electrolyte delivered an initial capacity of 1622 mAh g-1 and maintained a capacity of 500 mAh g-1 after 300 cycles. When the PVdF-HFP/functionalized PMMA electrolyte was used, the Li/S battery had an initial discharge capacity of 1600 mAh g-1 and a stable capacity of 1050 mAh g-1 after more than 100 cycles. Furthermore, utilization of the PVdF-HFP/functionalized PMMA/mesoporous silica composite electrolyte resulted in an initial discharge capacity of 1648 mAh g-1 and a stable discharge capacity of 1143 mAh g-1 after more than 100 cycles. The preparation procedures employed have the advantage of being reproducible, simple and inexpensive. In the second part of the thesis, gel polymer electrolyte systems were prepared and tested in Li/S batteries with sulfur/carbon (S/C) composite cathodes. Sulfur/carbon (S/C) composite cathodes are of great interest since they potentially offer higher loading of sulfur (>60 wt%). However, severe capacity fading and low cycling efficiency due to lithium polyslfide dissolution and diffusion result in poor cyclability. Therefore, it is difficult to find a suitable electrolyte for this category of sulfur-based composite cathodes. The high-energy and low-cost S/C composite cathode was synthesized through a facile one-step solution processing method, in which activated hardwood charcoal (AHC) powder was used as a scaffold to embed the sulfur active material and improve its electronic conductivity and its utilization in the battery cell. Results showed that normal gel polymer electrolytes could not effectively prevent polysulfide dissolution and performance fading. However, when a fluorinated liquid electrolyte containing1,1,2,2-tetrafluoroethyl-2,2,3,3-tetrafluoropropyl ether was employed, a significant improvement in the electrochemical performance of the Li/S cell was achieved. It was observed that such a low-cost Li/S cell can be operated for more than 300 cycles while still maintaining high specific capacity (600 mAh g-1) and 97% Coulombic efficiency. Further analyses confirmed that such an enhanced performance was due to the confinement of lithium polysulfides inside the cathode electrode that prevented their shuttling between cathode and anode. This minimized the severe active mass loss that leads to fast capacity degradation and low Coulombic efficiency. The electrochemical performance of this new Li/S battery configuration represents a significant improvement in comparison to that of conventional electrolytes under the same testing conditions.

Download or read book Polymer Electrolytes for Rechargeable Lithium sulfur Batteries written by Yan Zhao and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: With the rapid development of portable electronics, hybrid-electric and electric cars, there is great interest in utilization of sulfur as cathodes for rechargeable lithium batteries. Lithium/sulfur batteries implement inexpensive, the earth-abundant elements at the cathode while offering up to a five-fold increase in energy density compared with the present Li-ion batteries. However, electrically insulating character of sulfur and solubility of intermediate polysulfides in organic liquid electrolytes, which causes rapid capacity loss upon repeated cycling, restrict the practical application of Li/S batteries. In this thesis, the gel polymer and solid polymer electrolytes were synthesized and applied in Li/S batteries.

Download or read book Novel Lithium Salt and Polymer Electrolytes for Polymer Lithium Batteries written by and published by . This book was released on 2008 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Development of Polymer Electrolytes and Cathode Materials for Rechargeable Lithium Battery written by Himani Gupta and published by . This book was released on 2023-04-04 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, world faces the energy challenges on two main issues. One of them is the electricity production from sustainable energy sources in place of burning fuel. And, another one is shifting the ground transportation toward electric vehicles. For these purposes, energy storage devices such as, batteries, fuel cell, supercapacitors are in demand. Among them, batteries, particularly lithium batteries are the most suitable storage device due to its reasonable energy density, capacity and cycle life. To improve the performance parameters of Li batteries, it is necessary to focus on their components. Present thesis is mainly concerned with developing electrolytes having high thermal stability, wide electrochemical window and sufficient Li+ ion conductivity and cathode materials with high discharge capacity and cyclability for Li batteries. Using polymer electrolytes in place of liquid electrolytes is technologically important for manufacturing and commercializing as they provide safer and flexible Li battery. In polymer electrolytes, polymer poly(ethylene oxide) (PEO) and lithium salt (LiTFSI and/or LiFSI) based systems are suitable electrolytes owing to high conductivity, safety, cyclability and mechanical robustness. But these electrolytes are semi-crystalline in nature which results low segmental motion of polymer chains and causes low ionic conductivity (̱10-6 S/cm) at room temperature. To use them in Li battery, the ionic conductivity of polymer electrolytes should be of the order of 10-5-10-4 S/cm or more which can be achieved in such systems only at temperatures higher than the melting temperature of PEO i.e. when it becomes amorphous. So, for obtaining high ionic conductivity, large amorphous regions of polymer electrolytes are required. There are many techniques to enhance the ionic conductivity and improve electrochemical behavior of PEO-salt systems.