Download or read book Polymerized Ionic Liquids written by Ali Eftekhari and published by Royal Society of Chemistry. This book was released on 2017-09-18 with total page 564 pages. Available in PDF, EPUB and Kindle. Book excerpt: The applications of ionic liquids can be enormously expanded by arranging the organic ions in the form of a polymer architecture. Polymerized ionic liquids (PILs), also known as poly(ionic liquid)s or polymeric ionic liquids, provide almost all features of ionic polymers plus a rare versatility in design. The mechanical properties of the solid or solid-like polymers can also be controlled by external stimuli, the basis for designing smart materials. Known for over four decades, PILs are a member of the ionic polymers family. Although the previous forms of ionic polymers have a partial ionicity, PILs are entirely composed of ions. Therefore, they offer a better flexibility for designing a responsive architecture as smart materials. Despite the terminology, PILs can be synthesized from solid organic ionic salts since the monomer liquidity is not a requirement for the polymerization process. Ionicity can also be induced to a neutral polymer by post-polymerization treatments. This is indeed an emerging field whose capabilities have been somehow overshadowed by the popularity of ionic liquids. However, recent reports in the literature have shown impressive potentials for the future. Written by leading authors, the present book provides a comprehensive overview of this exciting area, discussing various aspects of PILs and their applications as smart materials. Owing to the novelty of this area of research, the book will appeal to a broad readership including students and researchers from materials science, polymer science, chemistry, and physics.

Download or read book Pure Hybrid and Polymerized Ionic Liquid Based Electrolytes written by Manfred Kerner and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Polymer and Ceramic Electrolytes for Energy Storage Devices Two Volume Set written by Prasanth Raghavan and published by CRC Press. This book was released on 2021-04-08 with total page 639 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymer and Ceramic Electrolytes for Energy Storage Devices features two volumes that focus on the most recent technological and scientific accomplishments in polymer, ceramic, and specialty electrolytes and their applications in lithium-ion batteries. These volumes cover the fundamentals in a logical and clear manner for students, as well as researchers from different disciplines, to follow. The set includes the following volumes: 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. 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. These volumes 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.

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 ionic Liquid Hybrid Electrolytes for Lithium Batteries written by Aaron Steven Fisher and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Molecular Design of Polymerized Ionic Liquids written by Gabriel Eduardo Sanoja and published by . This book was released on 2016 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymerized ionic liquids are an emerging class of functional materials with ionic liquid moieties covalently attached to a polymer backbone. As such, they synergistically combine the structural hierarchy of polymers with the versatile physicochemical properties of ionic liquids. Unlike other ion-containing polymers that are typically constrained to high glass transition temperatures, polymerized ionic liquids can exhibit low glass transition temperatures due to weak electrostatic interactions even at high charge fractions. Promising applications relevant to electrochemical energy conversion and CO2 capture and sequestration have been demonstrated for polymerized ionic liquids, but a molecular design strategy that allows for elucidation of their structure-property relationships is yet to be developed. A combination of anionic polymerization, click chemistry, and ion metathesis allows for fine and independent control over polymer properties including the number of repeat units, fraction of ionic liquid moieties, composition, and architecture. This strategy has been exploited to elucidate the effect of lamellar domain spacing on the ionic conductivity of block copolymers based on hydrated protic polymerized ionic liquids. The conductivity relationship demonstrated in this study suggests that a mechanically robust material can be designed without compromising its ability to transport ions. The vast set of ion pair combinations in polymerized liquids provides a unique opportunity to develop functional materials where properties can be controlled with subtle changes in molecular structure via ion metathesis. We illustrate the case of a polymerized ionic liquid that combines the low toxicity and macromolecular dimensions of poly(ethylene glycol) with the magnetic functionality of ion pairs containing iron(III). This material can yield novel theranostic agents with controlled residence time within the human body, and paramagnetic functionality to enhance 1H nuclei relaxation rate required for medical imaging. Finally, the molecular design strategy is expanded to incorporate ion pairs based on metal-ligand coordination bonds between cations and imidazole moieties tethered to the polymer backbone. This illustrates a general approach for using chelating polymers with appropriate metal-ligand interactions to design high conductivity and tunable modulus polymer electrolytes.

Download or read book Design of Ionic Liquid based Electrolytes for High Power Devices written by Andrea Balducci and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Pyrrolidinium Ionic Liquid based Polymer Electrolytes written by Zviadi Katcharava and published by . This book was released on 2024* with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lithium-ion batteries (LiBs) are crucial for the electronics and automotive industries, playing a key role in the transition to renewable energy. Alternative electrolytes are essential for enhancing the safety and performance of LiBs towards next-generation devices. This study combines the benefits of polymers and ionic liquids (ILs), focusing on pyrrolidinium-based ILs due to their exceptional stability, and explores approaches to create 3D printable, reprocessable, mechanically strong, and electrochemically and thermally stable electrolytes. The material concepts include the preparation of vitrimeric poly(ionic liquid)s using dynamic boric ester bonds, polymer composites with surface-modified nanofillers, fluorinated dicationic ILs for enhanced properties, and gel electrolytes with tunable properties through the interplay between components.

Download or read book Ionic Liquid Electrolytes and Their Mixtures for Lithium Batteries written by Paul Morgan Bayley and published by . This book was released on 2011 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: The insatiable apatite humanity has for energy provides a great desire for portable battery technology, with large growth and increased development sure to become one of the big achievements of this century. Lithium batteries provide the energy density required by modern devices, however, the flammability and toxicity of the electrolytes currently employed leaves much to be desired in the way of safety. In particular, lithium metal anodes, that take full advantage of the electrochemical properties of lithium and are the focus of this research, are considered too unsafe for commercial applications. Ionic Liquids (ILs) provide the safety and electrochemical stability to facilitate better lithium batteries, however, they still suffer from the disadvantage of typically having a viscosity 1-2 orders of magnitude above conventional solvents. Through a greater understanding of the affect of additives and blending on the transport properties and speciation within the electrolyte, a commercially practical material is closer to development. Screening a range of molecular additives, from common organic solvents to short chain oligoethers, has shown that the viscosity of the additive is not important and that selection of the right structure can dramatically enhance the transport properties and alter the speciation of the lithium ions. Although the carbonates increase the lithium ion diffusivity, their main mode of enhancement in battery electrolytes is their ability to polymerise into suitable Solid Electrolyte Interphase (SEI) layers. Even though tetrahydrofuran (THF) increased lithium diffusion more than the carbonates, its electrochemical instability negates any positive enhancement. Short chain oligoethers, particularly tetraglyme (TG), are an extremely effective additive that essentially removes the detrimental effect on the transport properties of the Ionic Liquid (IL) when lithium salt is added, enhancing the lithium ion diffusivity by more than a factor of 4 at 274 K. Interestingly, the diffusivity and molecular motions of the pyrrolidinium cation remain largely unchanged regardless of the additive that is present. Variable temperature Nuclear Magnetic Resonance Spectroscopy (NMR) spin-lattice relaxation experiments display a clear trend in lithium environment based on the complexing ability of the additive, with the order from the almost unchanged to dramatically different, respectively; Toluene, THF, 1NM3 and TG. Purely ionic electrolytes maintain the full safety aspect that ILs provide, however, the difficulties in maintaining reasonable transport properties while improving lithium electrochemistry are highlighted. The Nmethyl- N-butyl-morpholinium cation exhibited much lower conductivity than analogous structures without an ether oxygen yet its favourable lithium electrochemistry and high temperature cycling performance is promising for high temperature applications or for use as an additive. Binary and ternary mixtures of ILs with lithium salts provide a viable avenue to increase the transport properties and extend the operating temperature of the electrolyte. Using a common cation, N-methyl-N-propylpyrrolidinium, and mixed anions, the binary blend with an anion concentration at a ratio of 2:1, bis(fluorosulfonyl)imide:bis(trifluoromethanesulfonyl)imide, produced a material with a melting temperature more than 20 K lower than either pure component.

Download or read book Electrochemical Aspects of Ionic Liquids written by Hiroyuki Ohno and published by Wiley-Interscience. This book was released on 2005-04-27 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt: Publisher Description

Download or read book Ionic Liquid Based Electrolytes for High temperature Lithium ion Batteries written by and published by . This book was released on 2015 with total page 37 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ionic Liquid for High Voltage Supercapacitor written by Jeeyoung Yoo and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Pure ionic liquids (ILs) and IL mixtures in organic solvents have been investigated for higher operating voltages around 3.0-4.0 V. ILs have design flexibility due to the numerous possible combinations of anions and cations. Current research on ILs as electrolytes has focused on several ILs, including imidazolium and pyrrolidinium. At early stages, various ILs have been studied as salts of electrolyte with organic solvents like acetonitrile and propylene carbonate. Neat ILs have been applied for high-performance electrolyte, and some of them have been used as electrolyte (1-ethyl 3-methylimidazolium tetrafluoroborate). These liquid electrolytes need additional encapsulation; therefore, SCs applied ILs face difficulty in integration and manufacturing flexible devices. These drawbacks can be solved by adopting a polymer electrolyte because the ILs maintain the conductivity even when solidified, unlike a typical organic electrolyte. Common polymer matrixes such as PVdF, PMMA, and PVA have been suggested to embed ILs. Poly(ionic liquid) (PIL) is also studied. PIL is a polymer electrolyte containing a polymer backbone and an IL species in the monomer repeat unit. PIL-based polymer electrolytes have high ionic conductivity, wide electrochemical windows, and high thermal stability.

Download or read book Synthesis and Electrochemical Studies of Novel Ionic Liquid Based Electrolytes written by Avinash Raju Vadapalli and published by . This book was released on 2015 with total page 126 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Room temperature ionic liquids (RTILs) have received substantial interest as nonaqueous electrolytes in lithium ion- and metal-air batteries in recent years due to their low volatility, non-flammability, wide liquid range, and thermal stability characteristics. Towards developing a new generation of high specific energy lithium ion batteries, a series of imidazolium and pyrrolidinium based ionic liquids were synthesized and explored as nonaqueous electrolytes in lithium-, lithium ion-, and lithium-air batteries. Pyrrolidinium-TFSI based ionic liquids have wide electrochemical stability (5.7 - 6.2 V vs Li/Li+); however, they show limited thermal stabilities and lithium cell discharge characteristics. TFSI-based ionic liquids are thermally and electrochemically more stable when compared with their BF4-based analogues. A series of fluorinated ionic liquid electrolytes were synthesized and investigated for their use in lithium-air batteries. These ionic liquids have improved the diffusion coefficient and higher solubility of oxygen when compared with currently used nonaqueous electrolytes. Cathode materials, such as LiNi[subscript 1/3]Mn[subscript 1/3]Co[subscript 1/3]O2 and LiFePO4, were chemically delithiated using nitronium tetrafluoroborate (NO2BF4), or disodium peroxydisulfate (Na2S2O8), to explore their effect on the oxidative degradation of the carbonate based electrolytes. Using fluoroethylene carbonate as the electrolyte additive, electrolyte degradation was monitored by 19F NMR spectroscopy. Formation of the solid electrolyte interface (SEI) on the delithiated cathode materials was probed using surface techniques, such as X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM)"--Abstract, page iii.

Download or read book Ionic Liquid based Electrolytes written by Ruben-Simon Kühnel and published by . This book was released on 2014 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Ionic Liquid based Electrolytes for Lithium Metal Batteries written by Lorenzo Grande and published by . This book was released on 2015 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hybrid Polymer Electrolyte Membranes Incorporating Ether derivatized Ionic Liquid and Glyme complex of Lithium Salt written by Yanni Wang and published by . This book was released on 2018 with total page 253 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Solid State Ionic Liquid Based Electrolytes for Dye Sensitized Solar Cells written by Chuan-Pei Lee and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Solid-State Ionic Liquid Based Electrolytes for Dye-Sensitized Solar Cells.