Studies On Anionic Redox In Li Rich Cathode Materials Of Li Ion Batteries
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Studies On Anionic Redox In Li Rich Cathode Materials Of Li Ion Batteries
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Author : Biao Li
language : en
Publisher: Springer
Release Date : 2018-12-13
Studies On Anionic Redox In Li Rich Cathode Materials Of Li Ion Batteries written by Biao Li and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-12-13 with Technology & Engineering categories.
This book presents studies and discussions on anionic redox, which can be used to boost the capacities of cathode electrodes by providing extra electron transfer. This theoretically and practically significant book facilitates the implementation of anionic redox in electrodes for real-world use and accelerates the development of high-energy-density lithium-ion batteries. Lithium-ion batteries, as energy storage systems, are playing a more and more important role in powering modern society. However, their energy density is still limited by the low specific capacity of the cathode electrodes. Based on a profound understanding of band theory, the author has achieved considerable advances in tuning the redox process of lithium-rich electrodes to obtain enhanced electrochemical performance, identifying both the stability mechanism of anionic redox in lithium-rich cathode materials, and its activation mechanism in these electrode systems.
Anionic Redox For High Energy Batteries Fundamental Understanding Practical Challenges And Future Outlook
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Author : Gaurav Assat
language : en
Publisher:
Release Date : 2018
Anionic Redox For High Energy Batteries Fundamental Understanding Practical Challenges And Future Outlook written by Gaurav Assat and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with categories.
Our increasing dependence on lithium-ion batteries for energy storage applications calls for continual performance improvements of their positive electrodes, which have so far relied solely on cationic redox of transition-metal ions for driving the electrochemical reactions. Great hope has recently been placed on the emergence of anionic redox - a transformational approach for designing Li-rich positive electrodes as it leads to a near-doubling of capacity - hence generating worldwide research interest. However, questions have been raised on the fundamental origins of anionic redox and whether its full potential can be realised in applications. This is exactly what this thesis aims to answer by using the knowledge from the fields of solid-state chemistry, electrochemistry, X-ray spectroscopy, and thermochemistry. We first provide a comprehensive historical account, a theoretical framework, some materials' design rules, and a survey of characterization techniques specific to anionic redox. Then, through comprehensive experimental studies that were performed in parallel on one 'model' (4d metal based) and one 'practical' (3d metal based) material, we highlight how the fundamental interplay between cationic and anionic redox processes governs the application-wise important properties of these promising battery materials (i.e. voltage hysteresis, rate performance, voltage decay, and heat generation,). Finally, using these results, we outline possible approaches for improving such materials and for designing novel ones. We also summarize their chances for market implementation in face of the competing nickel-based layered cathodes that are prevalent today.
From Intrinsic To Extrinsic Design Of Lithium Ion Battery Layered Oxide Cathode Material Via Doping Strategies
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Author : Chul-Ho Jung
language : en
Publisher: Springer Nature
Release Date : 2022-10-20
From Intrinsic To Extrinsic Design Of Lithium Ion Battery Layered Oxide Cathode Material Via Doping Strategies written by Chul-Ho Jung and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-20 with Technology & Engineering categories.
This book addresses the comprehensive understanding of Ni-rich layered oxide of lithium-ion batteries cathodes materials, especially focusing on the effect of dopant on the intrinsic and extrinsic effect to its host materials. This book can be divided into three parts, that is, 1. overall understanding of layered oxide system, 2. intrinsic effect of dopant on layered oxides, and 3. extrinsic effect of dopant on layered oxides. To truly understand and discover the fundamental solution (e.g. doping) to improve the Ni-rich layered oxides cathodic performance, understanding the foundation of layered oxide degradation mechanism is the key, thus, the first chapter focuses on discovering the true degradation mechanisms of layered oxides systems. Then, the second and third chapter deals with the effect of dopant on alleviating the fundamental degradation mechanism of Ni-rich layered oxides, which we believe is the first insight ever been provided. The content described in this book will provide research insight to develop high-performance Ni-rich layered oxide cathode materials and serve as a guide for those who study energy storage systems.
Energy Storage Properties Of Iridium Oxides
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Author : Arnaud Perez
language : en
Publisher:
Release Date : 2017
Energy Storage Properties Of Iridium Oxides written by Arnaud Perez and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
Improving energy storage stands as a key challenge to facilitate the transition to electric vehicles and renewable energy sources in the next years. Li-ion batteries, which have already conquered the portable electronic market, will be the leading technology to achieve this goal and are therefore the focus of intense research activities to improve their performances, especially in terms of capacity. Among the most promising strategies to obtain high capacity cathode materials, the preparation of Li-rich materials combining the redox activity of cations (transition metals) and anions (oxygen) attracts considerable interest. However, activation of anionic redox in these high capacity materials comes with several issues that need to be solved prior their implementation in the energy storage market. Deep fundamental understanding of anionic redox is therefore required to go forward. Using model systems based on iridium, this work explores how the oxygen local environment can play a role on the activation of anionic redox. The electrochemical properties of Na2IrO3 and Na(Li1/3Ir2/3)O2 phases are studied to understand the impact of the alkali nature. The influence of the Li/M ratio in rocksalt oxides is investigated with the synthesis of a new material Li3IrO4, which presents the highest reversible capacity among intercalation cathode materials. The rich electrochemical properties of this family of iridate materials are finally extended by preparing proton-based materials through a simple ion-exchange reaction and the electrochemical properties of a new H3+xIrO4 material are presented, with high rate capability performances.
Na Ion Batteries
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Author :
language : en
Publisher: John Wiley & Sons
Release Date : 2021-05-11
Na Ion Batteries written by and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-05-11 with Science categories.
This book covers both the fundamental and applied aspects of advanced Na-ion batteries (NIB) which have proven to be a potential challenger to Li-ion batteries. Both the chemistry and design of positive and negative electrode materials are examined. In NIB, the electrolyte is also a crucial part of the batteries and the recent research, showing a possible alternative to classical electrolytes – with the development of ionic liquid-based electrolytes – is also explored. Cycling performance in NIB is also strongly associated with the quality of the electrode-electrolyte interface, where electrolyte degradation takes place; thus, Na-ion Batteries details the recent achievements in furthering knowledge of this interface. Finally, as the ultimate goal is commercialization of this new electrical storage technology, the last chapters are dedicated to the industrial point of view, given by two startup companies, who developed two different NIB chemistries for complementary applications and markets.
Understanding And Exploiting Anion Redox Process For High Energy Density Positive Electrode Materials For Li Ion Batteries
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Author : Yang Yu (Scientist in Materials Science and Engineering)
language : en
Publisher:
Release Date : 2021
Understanding And Exploiting Anion Redox Process For High Energy Density Positive Electrode Materials For Li Ion Batteries written by Yang Yu (Scientist in Materials Science and Engineering) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with categories.
Through systematic transition metal substitution, we have proposed an electronic structure descriptor based on the energetic overlap between transition metal and oxygen to tune the cationic and anionic redox process in Ni-rich NMC as well as Li-rich positive electrode materials to enhance their cycling stability. We have also shown that the electronic structure descriptor can be applied to various electrochemical systems going through redox processes. Our study has laid a solid foundation for future high-throughput screening of novel and affordable metal oxides for battery and electrocatalysis applications.
Consequences Of Combinatorial Studies Of Positive Electrodes For Li Ion Batteries
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Author : Eric McCalla
language : en
Publisher: Springer Science & Business Media
Release Date : 2014-04-11
Consequences Of Combinatorial Studies Of Positive Electrodes For Li Ion Batteries written by Eric McCalla and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-04-11 with Science categories.
Li-Co-Mn-Ni oxides have been of extreme interest as potential positive electrode materials for next generation Li-ion batteries. Though many promising materials have been discovered and studied extensively, much debate remains in the literature about the structures of these materials. There is no consensus as to whether the lithium-rich layered materials are single-phase or form a layered-layered composite on the few nanometer length-scales. Much of this debate came about because no phase diagrams existed to describe these systems under the synthesis conditions used to make electrode materials. Detailed in this thesis are the complete Li-Co-Mn-O and Li-Mn-Ni-O phase diagrams generated by way of the combinatorial synthesis of mg-scale samples at over five hundred compositions characterized with X-ray diffraction. Selected bulk samples were used to confirm that the findings are relevant to synthesis conditions used commercially. The results help resolve a number of points of confusion and contradiction in the literature. Amongst other important findings, the compositions and synthesis conditions giving rise to layered-layered nano-composites are presented and electrochemical results are used to show how better electrode materials can be achieved by making samples in the single phase-layered regions.
Materials For Lithium Ion Batteries
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Author : Christian Julien
language : en
Publisher: Springer Science & Business Media
Release Date : 2000-10-31
Materials For Lithium Ion Batteries written by Christian Julien and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-10-31 with Technology & Engineering categories.
A lithium-ion battery comprises essentially three components: two intercalation compounds as positive and negative electrodes, separated by an ionic-electronic electrolyte. Each component is discussed in sufficient detail to give the practising engineer an understanding of the subject, providing guidance on the selection of suitable materials in actual applications. Each topic covered is written by an expert, reflecting many years of experience in research and applications. Each topic is provided with an extensive list of references, allowing easy access to further information. Readership: Research students and engineers seeking an expert review. Graduate courses in electrical drives can also be designed around the book by selecting sections for discussion. The coverage and treatment make the book indispensable for the lithium battery community.
Batteries For Sustainability
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Author : Ralph J. Brodd
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-12
Batteries For Sustainability written by Ralph J. Brodd and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-12 with Technology & Engineering categories.
Batteries that can store electricity from solar and wind generation farms are a key component of a sustainable energy strategy. Featuring 15 peer-reviewed entries from the Encyclopedia of Sustainability Science and Technology, this book presents a wide range of battery types and components, from nanocarbons for supercapacitors to lead acid battery systems and technology. Worldwide experts provides a snapshot-in-time of the state-of-the art in battery-related R&D, with a particular focus on rechargeable batteries. Such batteries can store electrical energy generated by renewable energy sources such as solar, wind, and hydropower installations with high efficiency and release it on demand. They are efficient, non-polluting, self-contained devices, and their components can be recovered and used to recreate battery systems. Coverage also highlights the significant efforts currently underway to adapt battery technology to power cars, trucks and buses in order to eliminate pollution from petroleum combustion. Written for an audience of undergraduate and graduate students, researchers, and industry experts, Batteries for Sustainability is an invaluable one-stop reference to this essential area of energy technology.
Study On Novel Cathode Materials Involving Anionic Redox Reactions With High Capacity For Rechargeable Ion Batteries
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Author : 蘇碧哲
language : en
Publisher:
Release Date : 2021
Study On Novel Cathode Materials Involving Anionic Redox Reactions With High Capacity For Rechargeable Ion Batteries written by 蘇碧哲 and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021 with Environmental engineering categories.