Author : Du Yuan
Publisher : Frontiers Media SA
Page : 96 pages
File Size : 48,49 MB
Release : 2021-01-12
Category : Science
ISBN : 2889663760
Author : Yizhak Marcus
Publisher : Springer
Page : 205 pages
File Size : 25,73 MB
Release : 2018-12-05
Category : Science
ISBN : 3030006085
This is one of the first books fully dedicated to the rapidly advancing and expanding research area of deep eutectic solvents. Written by the internationally recognized expert in solution chemistry, it supplies full information regarding preparation of these new eco-friendly solvents, their properties and applications. The current and potential applications of deep eutectic solvents as organic reaction media, catalytic system, in biomass processing, nanotechnology and metal finishing industry, as well as for extraction and separation are extensively discussed.This highly informative and carefully presented book will appeal to practicing chemists (organic chemists, polymer chemists, biochemists) as well as chemical engineers and environmental scientists.
Author : Kang Xu
Publisher : Royal Society of Chemistry
Page : 824 pages
File Size : 21,10 MB
Release : 2023-04-12
Category : Science
ISBN : 1839166177
Electrolytes are indispensable components in electrochemistry and the fast-growing electrochemical energy storage markets. Research in electrolytes has witnessed exponential growth in recent years, accompanied by their applications in the most popular electrochemical cell ever invented, lithium-ion batteries (LIBs). In myriads of LIBs, electrolytes and their interphases determine how high the voltage of a battery is, how many times it can be charged/discharged, or how rapid the energy stored therein could be released. The conquest of further technical challenges around safety, life and cost-effectiveness of lithium-based or beyond-lithium batteries requires in-depth understanding of electrolytes and interphases. This will be the authoritative textbook for those entering the field. Chapters will establish the fundamental principles for the field, before moving onto important knowledge acquired in recent years. There will be special emphasis on linking these fundamentals to real-world problems encountered in devices, especially lithium-ion batteries. The book will be suitable for advanced undergraduate and postgraduate students in electrochemical energy storage, electrochemistry, materials science and engineering, as well as researchers new to the subject.
Author : Prasanth Raghavan
Publisher : CRC Press
Page : 335 pages
File Size : 13,94 MB
Release : 2021-04-04
Category : Technology & Engineering
ISBN : 1000351807
Ceramic and Specialty Electrolytes for Energy Storage Devices, Volume II, investigates recent progress and challenges in a wide range of ceramic solid and quasi-solid electrolytes and specialty electrolytes for energy storage devices. The influence of these electrolyte properties on the performance of different energy storage devices is discussed in detail. Features: • Offers a detailed outlook on the performance requirements and ion transportation mechanism in solid polymer electrolytes • Covers solid-state electrolytes based on oxides (perovskite, anti-perovskite) and sulfide-type ion conductor electrolytes for lithium-ion batteries followed by solid-state electrolytes based on NASICON and garnet-type ionic conductors • Discusses electrolytes employed for high-temperature lithium-ion batteries, low-temperature lithium-ion batteries, and magnesium-ion batteries • Describes sodium-ion batteries, transparent electrolytes for energy storage devices, non-platinum-based cathode electrocatalyst for direct methanol fuel cells, non-platinum-based anode electrocatalyst for direct methanol fuel cells, and ionic liquid-based electrolytes for supercapacitor 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 and chemical engineers, as well as those involved in related disciplines.
Author : Jianmin Ma
Publisher : Royal Society of Chemistry
Page : 380 pages
File Size : 39,79 MB
Release : 2024-02-26
Category : Science
ISBN : 1839167580
Rechargeable batteries are one of the crucial ways we are going to solve the sustainable energy crisis. Lithium-ion batteries have been commercialised and are heavily relied upon, however, the scarcity of lithium resources increases the production cost and hinders further application. Additionally, the toxic and flammable electrolyte brings many potential safety hazards including environmental pollution. Looking for low-cost, safe, and environmentally friendly alternatives to LIBs has become a valuable research direction. The modification of batteries is focused on the anode, the cathode and electrolyte. Globally, researchers have moved onto new rechargeable batteries based on multivalent metal ions which have been extensively studied, including K+, Ca2+, Mg2+ and Al3+. However, the electrolyte is a very important component of a battery as its physical and chemical properties directly affect the electrochemical performance and energy storage mechanism. Finding and selecting an appropriate electrolyte system is a crucial factor that must be taken into account to make these post-lithium-ion batteries commercially viable. Until now, it has been challenging to develop a suitable electrolyte with a wide electrochemical stability window and stable anode interface. This book covers all the major ion-battery groups and their electrolytes, examining their performance and suitability in different solvents: aqueous, non-aqueous, solid gel and polymer. It is suitable for all levels of students and researchers who want to understand the fundamentals and future challenges of developing electrolytes.
Author : T. Richard Jow
Publisher : Springer
Page : 488 pages
File Size : 30,12 MB
Release : 2014-05-06
Category : Technology & Engineering
ISBN : 1493903020
Electrolytes for Lithium and Lithium-ion Batteries provides a comprehensive overview of the scientific understanding and technological development of electrolyte materials in the last several years. This book covers key electrolytes such as LiPF6 salt in mixed-carbonate solvents with additives for the state-of-the-art Li-ion batteries as well as new electrolyte materials developed recently that lay the foundation for future advances. This book also reviews the characterization of electrolyte materials for their transport properties, structures, phase relationships, stabilities, and impurities. The book discusses in-depth the electrode-electrolyte interactions and interphasial chemistries that are key for the successful use of the electrolyte in practical devices. The Quantum Mechanical and Molecular Dynamical calculations that has proved to be so powerful in understanding and predicating behavior and properties of materials is also reviewed in this book. Electrolytes for Lithium and Lithium-ion Batteries is ideal for electrochemists, engineers, researchers interested in energy science and technology, material scientists, and physicists working on energy.
Author : Nina Mahootcheian Asl
Publisher :
Page : 206 pages
File Size : 15,73 MB
Release : 2013
Category : Electric batteries
ISBN :
Rechargeable lithium ion batteries are widely used in portable consumer electronics such as cellphones, laptops, etc. These batteries are capable to provide high energy density with no memory effect and they have small self-discharge when they are not in use, which increases their potential for future electric vehicles. Investigators are attempting to improve the performance of these cells by focusing on the energy density, cost, safety, and durability. The energy density improves with high operation voltage and high capacity. Before any further development of high voltage materials, safe electrolytes with high ionic conductivity, wide electrochemical window, and high stability with both electrodes need to be developed. In this thesis a new strategy was investigated to develop electrolytes that can contribute to the further development of battery technology. The first study is focused on preparing a hybrid electrolyte, the combination of inorganic solid and organic liquid, for lithium based rechargeable batteries to illustrate the effect of electrode/electrolyte interfacing on electrochemical performance. This system behaves as a self-safety device at higher temperatures and provides better performance in comparison with the solid electrolyte cell, and it is also competitive with the pure liquid electrolyte cell. Then a multilayer electrolyte cell (MEC) was designed and developed as a new tool for investigating electrode/electrolyte interfacial reactions in a battery system. The MEC consists of two liquid electrolytes (L.E.) separated by a solid electrolyte (S.E.) which prevents electrolyte crossover while selectively transporting Li+ ions. The MEC successfully reproduced the performance of LiFePO4 comparable with that obtained from coin cells. In addition, the origin of capacity fading in LiNi0.5Mn1.5O4full-cell (with graphite negative electrode) was studied using the MEC. The performance of LiNi0.5Mn1.5O4 MEC full-cell was superior to that of coin full-cell by eliminating the Mn dissolution problem on graphite negative electrode as evidenced by transmission electron microscopy (TEM) analysis. The MEC can be a strong tool for identifying the electrochemical performances of future high voltage positive electrode materials and their electrode/electrolyte interfacial reactions. Finally, by employing the multilayer electrolyte concept, a new application will be introduced to recycle the lithium. This study demonstrates the feasibility of using water and the contents of waste Li-ion batteries for the electrodes in a Li-liquid battery system. Li metal was collected electrochemically from a waste Li-ion battery containing Li-ion source materials from the battery's anode, cathode, and electrolyte, thereby recycling the Li contained in the waste battery at the room temperature.
Author : Shuting Feng (Ph.D.)
Publisher :
Page : 190 pages
File Size : 21,10 MB
Release : 2019
Category :
ISBN :
The global society urgently needs to remedy the effects of climate change resulting from burning fossil fuels and significantly increase the utilization of renewable energy. Rechargeable batteries are important enablers of sustainable energy use, as they can be employed to store energy generated from renewable but intermittent source. Enhancing the functionality of battery electrolytes, such as (electro)chemical stability and ion conductivity, can improve battery energy density, operation efficiency, and safety. This thesis explores strategies to improve the stability and ion conductivity of organic electrolytes for rechargeable batteries. Special attention is given to aprotic lithium-oxygen (Li-O2) batteries, which offer theoretical energy densities that are 2 to 4 times increase over the state-of-the-art Li-ion batteries (LIBs). Currently, the practical development of rechargeable Li-O2 batteries is hindered by severe electrolyte degradations. Numerous families of organic solvents, polymers, and ionic liquids have been evaluated as electrolyte candidates; none are stable against the oxygen electrode in LiO2 batteries. Moreover, the decomposition pathways of many molecules are poorly understood. To investigate the structure-property relationships governing the stability of organic molecules in aprotic Li-O2 electrode environment, we developed and applied a comprehensive stability framework to a library of organic molecules with varied functionalities using density functional theory (DFT) calculations. Additionally, the chemical stability of the molecules was investigated experimentally. The computed and experimental results were in excellent agreement, and have been employed to identify unstable chemical moieties at the molecular level and to provide insight into the design of new electrolytes that would be stable in Li-O2 battery environment. Using the guiding principles provided by this stability framework, we developed three sulfamide- and sulfonamide-based electrolyte solvents that exhibited exceptional stability under aprotic Li-O2 conditions. In particular, the sulfonamide-based electrolytes have been found to be stable for >90 cycles in a Li-O2 cell, highlighting the power of rational molecular design for the development of stable and ion-conductive organic electrolytes for next-generation batteries.
Author : Laure Monconduit
Publisher : World Scientific
Page : 381 pages
File Size : 24,18 MB
Release : 2018-02-28
Category : Science
ISBN : 9813228156
The Li-ion battery market is growing fast due to its ever increasing number of applications, from electric vehicles to portable devices. These devices are in demand due to safety reasons, energy efficiency, high power density and long life duration, which drive the need for more efficient electrochemical energy storage systems. The aim of this book is to provide the challenges and perspectives for Li-ion batteries (chapters 1 and 2), at the negative electrode as well as at the positive electrode, and for technologies beyond the Li-ion with the emerging Na-ion batteries and multivalent (Mg, Al, Ca, etc) systems (chapters 4 and 5). The aim is also to alert on the necessity to develop the recycling methods of the millions of produced batteries which are going to further flood our societies (chapter 3), and also to continuously increase the safety of the energy storage systems. For the latter challenge, it is interesting to seriously consider polymer electrolytes and batteries as an alternative (chapter 6).This book will take readers inside recent breakthroughs made in the electrochemical energy systems. It is a collaborative work of experts from the most known teams in the batteries field in Europe and beyond, from academics as well as from manufacturers.
Author : Władysław Wieczorek
Publisher : CRC Press
Page : 345 pages
File Size : 15,88 MB
Release : 2021-06-23
Category : Technology & Engineering
ISBN : 1000076806
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.
