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Novel Conductive Glass Perovskites As Solid Electrolytes In Lithium Ion Batteries
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Book Synopsis Novel Conductive Glass-perovskites as Solid Electrolytes in Lithium-ion Batteries by : Taiye J. Salami
Download or read book Novel Conductive Glass-perovskites as Solid Electrolytes in Lithium-ion Batteries written by Taiye J. Salami and published by . This book was released on 2018 with total page 112 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite commanding a huge market share of rechargeable batteries, current lithium ion batteries have safety concerns due to their use of flammable organic solvents as electrolytes. Successfully replacing the liquid electrolyte in a lithium ion battery with a solid electrolyte with comparable capability to the organic liquids would result in batteries that are safer to use, have a longer cycle life, and possess minimal self-discharge, wider operating potential and temperature window. Solid electrolytes currently have a limitation in that they do not match the ability of the organic liquids in conducting lithium ions because they almost always have ionic resistive components called grain boundaries in their microstructure. Appropriate combination of a glass with a perovskite-type ceramic that contains a lithium-ion conductive phase is shown to result in an amorphous composite having denser microstructure, better stability and no grain boundary effects. This is a pioneering breakthrough and a major upgrade to the ordinary crystalline ceramic, which, previously, had been shown to have one of the highest bulk ionic conductivity among solid electrolytes but greatly limited in application because of the much higher ionic resistance of its grain boundaries. In this research, different molar composition of glass and ceramics were melted and cooled using varying techniques, including a dual roller-quencher built from a rolling mill. A phase diagram for the mixture at different compositions was proposed and the composition giving a nucleation & growth morphology, where the lithium - ion conductive phase was the amorphous matrix was found to be one order higher in ionic conductivity than the ordinary Li0.5La0.5TiO3 perovskite-type ceramic. The results from other cooling rates and doping of the glass - ceramics with foreign ions were also reported and explained in this report.
Download or read book Nanoinformatics written by Isao Tanaka and published by Springer. This book was released on 2018-01-15 with total page 296 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book brings out the state of the art on how informatics-based tools are used and expected to be used in nanomaterials research. There has been great progress in the area in which “big-data” generated by experiments or computations are fully utilized to accelerate discovery of new materials, key factors, and design rules. Data-intensive approaches play indispensable roles in advanced materials characterization. "Materials informatics" is the central paradigm in the new trend. "Nanoinformatics" is its essential subset, which focuses on nanostructures of materials such as surfaces, interfaces, dopants, and point defects, playing a critical role in determining materials properties. There have been significant advances in experimental and computational techniques to characterize individual atoms in nanostructures and to gain quantitative information. The collaboration of researchers in materials science and information science is growing actively and is creating a new trend in materials science and engineering.
Book Synopsis Lithium Ion Glassy Electrolytes by : Sanjib Bhattacharya
Download or read book Lithium Ion Glassy Electrolytes written by Sanjib Bhattacharya and published by Springer Nature. This book was released on 2022-10-02 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents recent developments and future scopes of glassy systems, such as their electrical and optical properties, use as electrodes, photonics devices, battery applications and others, which are of great interest for material scientists and professionals. Each chapter is designed to increase coherence, containing examples and question sets as exercises for in-depth understanding of the text. It provides a valuable resource for researchers, professionals and students in the area of material research especially on Li-doped glasses.
Book Synopsis Novel Lithium Ionic Conducting Perovskite Materials for Lithium-Air Batteries by : Muneerah Almohareb
Download or read book Novel Lithium Ionic Conducting Perovskite Materials for Lithium-Air Batteries written by Muneerah Almohareb and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Lithium Air (Li/O2) batteries are energy conversion devices that produce electricity from the oxidation of lithium metal at the anode and the reduction of molecular oxygen at the cathode. These batteries are considered as promising rechargeable cells for high power applications due to their high power density ranging from 1000 to 2000 Wh/kg. However, one of the most significant challenges is the need to separate the metallic lithium anode from any oxygen or water-containing environment while at the same time allowing fast and efficient lithium ion transport through the electrolyte. Therefore, lithium ion conducting materials that are water and CO2 resistant are a prerequisite. Common materials used as anode protective films and/or Li+ conducting electrolytes for lithium air batteries are perovskite-type oxides (formula: ABO3). Perovskites are good candidates for this application because of their versatility, particularly in regards to ionic conductivity. In the present work, a low cost perovskite family such as SFO (SmFeO3) is developed as a lithium ion conducting material by the introduction of Li+ into its lattice. The perovskites have been synthesized using a solid-state reaction method (SSR) and characterized using different techniques such as powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), energy dispersive X-ray Spectroscopy (EDS) and electrochemical impedance spectroscopy (EIS). The synthesized perovskites are based on samarium lithium ferrite and divided into two groups depending on the formal presence of vacancies in the stoichiometric formula. The first group (SLFO) with no formal vacancies has the stoichiometric formula of SmxLi1-xFeO2+x (where x = 0.1, 0.2, 0.3, 0.5 and 0.7). While the second group (SLFO*) was generated with less metal atoms than specified in the perovskite structure, thereby generating a structure with intrinsic vacancies and with the formula, Sm(x)Li([1-x] - [0.1] or [0.2]) FeO3-? (where x = 0.3, 0.4, 0.5 and 0.6). Finally, the effect of varying Li and Sm concentrations in both groups and vacancies created in the lattice for the second group, on the ionic conductivity is explored.
Book Synopsis Lithium Ion Conducting Glasses as Solid State Electrolytes by : Margaret Jagla
Download or read book Lithium Ion Conducting Glasses as Solid State Electrolytes written by Margaret Jagla and published by . This book was released on 1983 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Lithium-ion Batteries by : Mitsunobu Sato
Download or read book Lithium-ion Batteries written by Mitsunobu Sato and published by BoD – Books on Demand. This book was released on 2020-07-08 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book “Lithium-ion Batteries - Thin Film for Energy Materials and Devices” provides recent research and trends for thin film materials relevant to energy utilization. The book has seven chapters with high quality content covering general aspects of the fabrication method for cathode, anode, and solid electrolyte materials and their thin films. All the chapters have been written by experts from different backgrounds, and the book is the result of collaborations between all contributing authors who agreed to share their research expertise and technological visions for the future. We hope this book will significantly stimulate readers to develop new devices.
Book Synopsis Lithium-Ion Batteries by : Xianxia Yuan
Download or read book Lithium-Ion Batteries written by Xianxia Yuan and published by CRC Press. This book was released on 2016-04-19 with total page 419 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by a group of top scientists and engineers in academic and industrial R&D, Lithium-Ion Batteries: Advanced Materials and Technologies gives a clear picture of the current status of these highly efficient batteries. Leading international specialists from universities, government laboratories, and the lithium-ion battery industry share th
Book Synopsis Ceramic Electrolytes For All-solid-state Li Batteries by : Masashi Kotobuki
Download or read book Ceramic Electrolytes For All-solid-state Li Batteries written by Masashi Kotobuki and published by World Scientific. This book was released on 2018-06-04 with total page 246 pages. Available in PDF, EPUB and Kindle. Book excerpt: All-solid-state batteries have gained much attention as the next-generation batteries. This book is about various Li ion ceramic electrolytes and their applications to all-solid-state battery. It contains a wide range of topics from history of ceramic electrolytes and ion conduction mechanisms to recent research achievements. Here oxide-type and sulfide-type ceramic electrolytes are described in detail. Additionally, their applications to all-solid-state batteries, including Li-air battery and Li-S battery, are reviewed.Consisting of fundamentals and advanced technology, this book would be suitable for beginners in the research of ceramic electrolytes; it can also be used by scientists and research engineers for more advanced development.
Book Synopsis Optimization of Fast Ionic Conducting Glasses for Lithium Batteries by : Jason Edward Saienga
Download or read book Optimization of Fast Ionic Conducting Glasses for Lithium Batteries written by Jason Edward Saienga and published by . This book was released on 2005 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fast ion conducting (FIC) sulfide glasses are ideal candidates for solid electrolytes used in Li battery applications because they have high ionic conductivity and may be tailored for extreme operating conditions through the addition of modifiers. An effort has been put forth to develop sulfide glass compositions possessing chemical stability necessary for production and thermal stability for a wide variety of applications while still retaining high ionic conductivity. A few new series of FIC glasses have been developed that have exceptional conductivities combined with high T[subscript g]s and good electrochemical stability. The structure of the glass network generally dictates the bulk properties of the glass, such as the ionic conductivity, density, thermal stability, and chemical stability. The structure of the glass network in the Li2S + GeS2 + Ga2S3 and Li2S + GeS2 + La2S3 systems was performed using Raman and Infrared spectroscopy. The effects of concentration variations of each glass component along with the effects of additional glass modifiers such as Lil and BaS can be observed with the change in bulk properties, but can be explained using the structural analysis results obtained from the Raman and IR spectroscopy. The optimized glasses have room temperature conductivities of>10−3([Omega] cm)−1 and T[subscript g]s in excess of 300°C. An increase in Ga2S3 concentration leads to the reduction of non-bridging sulfiirs in the glass thus improving the thermal stability of the glass. The substitution of La2S3 for Ga2S3 gives a slight improvement in the ionic conductivity and chemical stability of the glass. The addition of Lil is found to improve the glass formation and conductivity with only moderate decreases in the T[subscript g] (
Book Synopsis Metal-Organic Frameworks-Based Electrolytes for Lithium Rechargeable Batteries by : Li Shen
Download or read book Metal-Organic Frameworks-Based Electrolytes for Lithium Rechargeable Batteries written by Li Shen and published by . This book was released on 2018 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: The extensive utilization of fossil fuels since 2nd industry revolution bears a major responsibility for climate change. The raising awareness towards sustainable and renewable energy supply calls for game-changing research and progress in field of electrochemical energy storage, among which lithium-ion batteries (LIBs) is of particular interest. The developments of LIBs, in conjunction with the revolutions in the area of semiconductor and information technologies, have triggered the rapid growth of portable electronics and electric vehicles. Particularly, the transition of gasoline-powered automobiles to electrification ones requires better LIBs with higher energy density, faster charging rate, cheaper cost and longer-lasting lifetime. To achieve the goals, it is essential to rethink and closely examine the fundamental electrochemistry beneath the conversion between electricity and chemical reactions. The operation of batteries relies on the separation of electrons and ions in electrodes, and their subsequent respective translocation through the electronic pathways and the electrolytes. The electronic conductivity of electrodes has been improved by rational architecture design and incorporation of conductive agents. While optimizing ionic transport is more challenging since the electrode-electrolyte interface is dynamic during cycling. Variation of electrolytes would not only impact the electrochemical reactions in electrodes, but also the ohmic and concentration polarizations throughout the devices. Therefore, advances in electrolyte are vital for driving innovations in battery technologies. Commercial liquid electrolytes, which are based on ion diffusion in fluidic medium, have merit in ionic conductivity. However, its suitability for next-generation LIBs is under dispute. Firstly, the Li+ transference number, defined as the ratio of conductivity carried by Li+ versus by Li+ and counter anions, is typically as low as 0.3, indicating an inferior transport efficiency. Such scenario is responsible for severe polarization and deterioration of the cycling life, particularly, during fast charging/discharging process. Second, liquid electrolytes are not compatible with high energy electrodes (e.g. Li anode, high voltage cathode, etc.) viewed from the aspects of electrochemical voltage window and safety. To address these issues, solid electrolytes and polymer electrolytes have been extensively explored due to their high Li+ transference number and superior safety. Yet their implementation to commercial LIBs still encounters considerable challenges from the aspects of low ionic conductivity and manufactural difficulties. In this dissertation, a novel class of ionic conductors with biomimetic ionic channels have been developed to overcome the aforementioned limitations in liquid electrolytes. By thermal activation, porous metal-organic frameworks (MOFs) yield unsaturated metal centers which could be complexed with liquid electrolytes. The anions in liquid electrolytes can spontaneously bind with the unsaturated metal centers, forming ionic channels mimicking those of in the biologic systems and allowing effective transport of Li+. The ionic conductors built upon MOFs outperform liquid electrolytes in terms of high ionic conductivity, high transference number, broad electrochemical window and improved safety. The dissertation research could be outlined briefly with following two parts: 1. Development of MOFs-based electrolytes with high ionic conductivity and high Li+ transfer number. This part of work firstly demonstrated the concept of biomimetic ionic channels within MOFs. Second, optimization of MOF pore structures according to infiltrated liquid electrolyte affords the synthesis of suitable MOF-based electrolytes with high Li+ ionic conductivity and low cost. 2. Integration of MOFs-based electrolytes into batteries. Three strategies were explored in this part to integrate the MOFs-based ionic conductors as following components: 1) separator; 2) electrolyte additive; 3) electrode additive. Overall, this dissertation research has developed a new class of fast lithium ion conductors based on MOFs and commercially available liquid electrolytes, a variety of architecture designs for incorporating these fast Li+ conductors into battery device could be implemented in a cost-effective manner. By taking advantage of unsaturated metal sites in MOFs, immobilized anions and fast Li+ mobility enable superior device performances with prolonged cycling performance, especially at fast charging rate. Based on these works, one can expect the advances in electrolytes will impact the markets of lithium rechargeable batteries in the near future.
Book Synopsis Liquid Electrolyte Chemistry for Lithium Metal Batteries by : Jianmin Ma
Download or read book Liquid Electrolyte Chemistry for Lithium Metal Batteries written by Jianmin Ma and published by John Wiley & Sons. This book was released on 2022-02-09 with total page 299 pages. Available in PDF, EPUB and Kindle. Book excerpt: Liquid Electrolyte Chemistry for Lithium Metal Batteries An of-the-moment treatment of liquid electrolytes used in lithium metal batteries Considered by many as the most-promising next-generation batteries, lithium metal batteries have grown in popularity due to their low potential and high capacity. Crucial to the development of this technology, electrolytes can provide efficient electrode electrolyte interfaces, assuring the interconversion of chemical and electrical energy. The quality of electrode electrolyte interphase, in turn, directly governs the performance of batteries. In Liquid Electrolyte Chemistry, provides a comprehensive look at the current understanding and status of research regarding liquid electrolytes for lithium metal batteries. Offering an introduction to lithium-based batteries from development history to their working mechanisms, the book further offers a glimpse at modification strategies of anode electrolyte interphases and cathode electrolytic interphases. More, by discussing the high-voltage electrolytes from their solvents—organic solvents and ionic liquids—to electrolyte additives, the text provides a thorough understanding on liquid electrolyte chemistry in the remit of lithium metal batteries. Liquid Electrolyte Chemistry for Lithium Metal Batteries readers will also find: A unique focus that reviews the development of liquid electrolytes for lithium metal batteries State-of-the-art progress and development of electrolytes for lithium metal batteries Consideration of safety, focusing the design principles of flame retardant and non-flammable electrolytes Principles and progress on low temperature and high temperature electrolytes Liquid Electrolyte Chemistry for Lithium Metal Batteries is a useful reference for electrochemists, solid state chemists, inorganic chemists, physical chemists, surface chemists, materials scientists, and the libraries that supply them.
Book Synopsis Materials for Solid State Batteries by : B. V. R. Chowdari
Download or read book Materials for Solid State Batteries written by B. V. R. Chowdari and published by World Scientific Publishing Company. This book was released on 1986 with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Supramolecular Engineering of New Lithium Ion Conducting Polymer Electrolytes by :
Download or read book Supramolecular Engineering of New Lithium Ion Conducting Polymer Electrolytes written by and published by . This book was released on 2001 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This project involves a novel approach to the synthesis of new classes of materials designed to function as ion conducting systems. In particular, our aim is to synthesize materials for use as polymer electrolytes in solid-state lithium batteries. The current phase of this proposed work is designed to identify promising candidates and to study the mechanism by which ions are transported through these new solids. The ultimate goal is to produce a working lithium battery incorporating the new electrolytes.
Book Synopsis Synthesis and Characterization of Substituted Garnet and Perovskite-based Lithium-ion Conducting Solid Electrolytes by :
Download or read book Synthesis and Characterization of Substituted Garnet and Perovskite-based Lithium-ion Conducting Solid Electrolytes written by and published by . This book was released on 2015 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this study, titanium, tantalum-substituted Li7La3Zr2-xAxO12 (LLZO, A = Ta, Ti) garnets, and chromium-substituted La(2/3)-xLi3xTi1-yCryO3 (LLTO) perovskites were prepared by a conventional solid-state reaction and the Pechini processes. The desired crystal phases were obtained by varying the calcination temperature and time, as well as the substitution concentration. All samples indicated decomposition of the precursors when heated above 750 °C and formation of the desired phase after heat treatment at higher temperatures. Neutron diffraction data shows the formation of a predominant cubic phase in the case of Ta-LLZO, and monoclinic phase with minor impurity phases for Cr-LLTO. Ionic conductivity for Ti-LLZO (Li7La3Zr1.4Ti0.6O12), Ta-LLZO (Li6.03La3Zr1.533Ta0.46O12), and Cr-LLTO (La(2/3)-xLi3xTi0.9Cr0.1O3) at room temperature were found to be 5.21 × 10-6, 1.01 ×10-6, and 1.2 × 10-4 S cm-1, respectively. The activation energies of the compounds were determined from the Arrhenius plot and were 0.44 eV (Ti0.6-LLZO), 0.54 eV (Ta0.5-LLZO), and 0.20 eV (Cr0.1-LLTO).
Book Synopsis New Lithium Ion Conducting Solid Electrolytes by : Alan Rodger
Download or read book New Lithium Ion Conducting Solid Electrolytes written by Alan Rodger and published by . This book was released on 1984 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Solid Electrolytes and Their Applications by : E. Subbarao
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 Chemical Abstracts written by and published by . This book was released on 2002 with total page 2018 pages. Available in PDF, EPUB and Kindle. Book excerpt:
