Functional Design Of Advanced Polymer Architectures For Improved Lithium Ion Batteries
DOWNLOAD
Download Functional Design Of Advanced Polymer Architectures For Improved Lithium Ion Batteries PDF/ePub or read online books in Mobi eBooks. Click Download or Read Online button to get Functional Design Of Advanced Polymer Architectures For Improved Lithium Ion Batteries book now. This website allows unlimited access to, at the time of writing, more than 1.5 million titles, including hundreds of thousands of titles in various foreign languages. If the content not found or just blank you must refresh this page
Functional Design Of Advanced Polymer Architectures For Improved Lithium Ion Batteries
DOWNLOAD
Author : David G Mackanic
language : en
Publisher:
Release Date : 2020
Functional Design Of Advanced Polymer Architectures For Improved Lithium Ion Batteries written by David G Mackanic and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.
Lithium ion batteries (LIBs) are ubiquitous for applications in consumer electronics, electric vehicles, and grid-scale energy storage. Despite rapidly increasing demand, modern LIBs face significant challenges with regards to their safety and energy density. Additionally, the rigid nature of existing LIBs precludes their use in emerging applications in flexible/wearable electronics. Polymeric materials promise to address many of the issues facing LIBs, yet the existing polymers used commercially fall short of this goal. In this work, we design functional polymer materials to address three major challenges for next-generation LIBs. We explore the structure-property relationships of these polymer architectures in the context of ion transport, mechanical properties, and electrochemical performance. In the first project, a new polymer electrolyte is designed to replace the flammable liquid electrolyte in conventional LIBs. We study the effect of lithium ion coordination in polymer electrolytes and discover a modified polymeric backbone that loosely coordinates to lithium ions. The loose coordination of this new polymer electrolyte enables an improved lithium transference number of 0.54, compared to 0.2 achieved in conventional polymer electrolytes. This polymer electrolyte is demonstrated to operate effectively in a battery with a lithium-metal anode. In the second project, the learnings of the lithium coordination environment from the first project are used to design a multifunctional polymer coating to stabilize high energy density lithium metal anodes. We combined loosely-coordinating fluorinated ligands dynamically bonded with single-ion-conductive metal centers. The resulting supramolecular polymer network functions as an excellent lithium metal coating, allowing for achievement of one of the highest-reported coulombic efficiencies and cycle lives of a lithium metal anode. A systematic investigation of the chemical structure of the coating reveals that the properties of dynamic flowability, single-ion transport, and electrolyte blocking are synergistic in improving Li-metal coating performance. This coating is applied in a commercially relevant lithium metal full-cell and increases the cycle life over two-fold compared to an uncoated anode. The final project uses supramolecular polymer design to create ultra-robust ion transport materials. We show that when soft ion conducting segments are combined with strong dynamically bonded moieties in the polymer backbone, the ion transport properties can be decoupled from the mechanical properties. This decoupling enables for the creation of polymer electrolytes with extremely high toughness and high ionic conductivity. These supramolecular materials enable the fabrication of stretchable and deformable batteries that demonstrate respectable energy density even when stretched to 70% of their original length. Overall, the work demonstrated in this thesis provides a robust understanding towards designing polymer networks with tunable ion transport and mechanical properties. Additionally, the polymer materials demonstrated here provide promising avenues toward improving the safety, energy density, and flexibility of LIBs.
Materials For Advanced Batteries
DOWNLOAD
Author : D. Murphy
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-03-09
Materials For Advanced Batteries written by D. Murphy 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 2013-03-09 with Technology & Engineering categories.
The idea of a NATO Science Committee Institute on "Materials for Advanced Batteries" was suggested to JB and DWM by Dr. A. G. Chynoweth. His idea was to bring together experts in the field over the entire spectrum of pure research to applied research in order to familiarize everyone with potentially interesting new systems and the problems involved in their development. Dr. M. C. B. Hotz and Professor M. N. Ozdas were instrumental in helping organize this meeting as a NATO Advanced Science Institute. An organlzlng committee consisting of the three of us along with W. A. Adams, U. v Alpen, J. Casey and J. Rouxel organized the program. The program consisted of plenary talks and poster papers which are included in this volume. Nearly half the time of the conference was spent in study groups. The aim of these groups was to assess the status of several key aspects of batteries and prospects for research opportunities in each. The study groups and their chairmen were: Current status and new systems J. Broadhead High temperature systems W. A. Adams Interface problems B. C. H. Steele Electrolytes U. v Alpen Electrode materials J. Rouxel These discussions are summarized in this volume. We and all the conference participants are most grateful to Professor J. Rouxel for suggesting the Aussois conference site, and to both he and Dr. M. Armand for handling local arrangements.
Printed Batteries
DOWNLOAD
Author : Senentxu Lanceros-Méndez
language : en
Publisher: John Wiley & Sons
Release Date : 2018-04-23
Printed Batteries written by Senentxu Lanceros-Méndez 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 2018-04-23 with Technology & Engineering categories.
Offers the first comprehensive account of this interesting and growing research field Printed Batteries: Materials, Technologies and Applications reviews the current state of the art for printed batteries, discussing the different types and materials, and describing the printing techniques. It addresses the main applications that are being developed for printed batteries as well as the major advantages and remaining challenges that exist in this rapidly evolving area of research. It is the first book on printed batteries that seeks to promote a deeper understanding of this increasingly relevant research and application area. It is written in a way so as to interest and motivate readers to tackle the many challenges that lie ahead so that the entire research community can provide the world with a bright, innovative future in the area of printed batteries. Topics covered in Printed Batteries include, Printed Batteries: Definition, Types and Advantages; Printing Techniques for Batteries, Including 3D Printing; Inks Formulation and Properties for Printing Techniques; Rheological Properties for Electrode Slurry; Solid Polymer Electrolytes for Printed Batteries; Printed Battery Design; and Printed Battery Applications. Covers everything readers need to know about the materials and techniques required for printed batteries Informs on the applications for printed batteries and what the benefits are Discusses the challenges that lie ahead as innovators continue with their research Printed Batteries: Materials, Technologies and Applications is a unique and informative book that will appeal to academic researchers, industrial scientists, and engineers working in the areas of sensors, actuators, energy storage, and printed electronics.
Novel Electrochemical Energy Storage Devices
DOWNLOAD
Author : Feng Li
language : en
Publisher: John Wiley & Sons
Release Date : 2021-04-13
Novel Electrochemical Energy Storage Devices written by Feng Li 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 2021-04-13 with Technology & Engineering categories.
Novel Electrochemical Energy Storage Devices Explore the latest developments in electrochemical energy storage device technology In Novel Electrochemical Energy Storage Devices, an accomplished team of authors delivers a thorough examination of the latest developments in the electrode and cell configurations of lithium-ion batteries and electrochemical capacitors. Several kinds of newly developed devices are introduced, with information about their theoretical bases, materials, fabrication technologies, design considerations, and implementation presented. You’ll learn about the current challenges facing the industry, future research trends likely to capture the imaginations of researchers and professionals working in industry and academia, and still-available opportunities in this fast-moving area. You’ll discover a wide range of new concepts, materials, and technologies that have been developed over the past few decades to advance the technologies of lithium‐ion batteries, electrochemical capacitors, and intelligent devices. Finally, you’ll find solutions to basic research challenges and the technologies applicable to energy storage industries. Readers will also benefit from the inclusion of: A thorough introduction to energy conversion and storage, and the history and classification of electrochemical energy storage An exploration of materials and fabrication of electrochemical energy storage devices, including categories, EDLCSs, pseudocapacitors, and hybrid capacitors A practical discussion of the theory and characterizations of flexible cells, including their mechanical properties and the limits of conventional architectures A concise treatment of the materials and fabrication technologies involved in the manufacture of flexible cells Perfect for materials scientists, electrochemists, and solid-state chemists, Novel Electrochemical Energy Storage Devices will also earn a place in the libraries of applied physicists, and engineers in power technology and the electrotechnical industry seeking a one-stop reference for portable and smart electrochemical energy storage devices.
Rational Design Of Composite Cathodes And Functional Electrolytes For High Energy Lithium Metal Batteries
DOWNLOAD
Author : Panpan Dong
language : en
Publisher:
Release Date : 2020
Rational Design Of Composite Cathodes And Functional Electrolytes For High Energy Lithium Metal Batteries written by Panpan Dong and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Cathodes categories.
Metallic lithium has been considered one of the most attractive anode materials for high-energy batteries because it has a low density (0.53 g cm8́23), the lowest reduction potential (8́23.04 V vs. the standard hydrogen electrode), and a high theoretical specific capacity (3,860 mAh g8́21). Chalcogen elements, such as sulfur and selenium, have been widely reported as promising cathode candidates for next-generation lithium-metal batteries (LMBs) that demonstrate much higher energy density than current lithium-ion batteries. However, lithium0́3chalcogen batteries still suffer from the loss of cathode active materials and the degradation of lithium metal anode owing to the shuttle effects of intermediate products (e.g., polysulfides and polyselenides), leading to fast capacity fading and poor cyclability. Moreover, for lithium metal anodes, the cracking of solid electrolyte interphase (SEI) layer during long cycling results in dead lithium formation and lithium dendrite growth, leading to poor Coulombic efficiency and potential safety issues. The abovementioned challenges hinder the commercialization of LMBs. To address these problems, various strategies have been developed to mitigate the dissolution/diffusion of redox intermediates and stabilize metallic lithium anodes. In this dissertation, sulfur- and selenium-based nanocomposites were synthesized and employed as advanced cathode materials for high-energy LMBs. The correlations between syntheses, properties, and performances of such chalcogen cathode materials were established by various characterization methods such as microstructural analyses, solid-state nuclear magnetic resonance, X-ray photoelectron spectroscopy, and nanoscale X-ray computed tomography. Additionally, the interfacial electrochemistry of lithium metal anodes and ionic liquid0́3based electrolytes is comprehensively investigated, revealing the effective stabilization and protection of lithium anode via the formation of an in situ SEI layer with specific compositions. Moreover, strategies for achieving novel solid polymer electrolytes with improved lithium-ion transference number were demonstrated, paving the way toward safe LMBs by mitigating lithium dendrite growth. This dissertation provides a combined strategy of advanced cathode design, electrolyte engineering, and lithium anode stabilization to develop high-energy LMBs for practical applications.
Design Strategies For Improving Ionic Conductivity In Solid Polymer Electrolytes
DOWNLOAD
Author : Yukyung Jung
language : en
Publisher:
Release Date : 2015
Design Strategies For Improving Ionic Conductivity In Solid Polymer Electrolytes written by Yukyung Jung and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Lithium-ion batteries are important in many aspects of modern life from portable electronics to electric vehicles. Their high specific energy, light weight, and design flexibility make them especially useful compared to other types of battery technologies. However, there remains room for improvement with regards to battery stability, safety, and increased capacity. One strategy for making lithium batteries both safer and more practical is by using solid polymer electrolytes (SPEs). Not only does the replacement of small molecule liquid electrolytes by SPEs significantly reduce the flammability of the battery, SPEs also make possible the construction of lighter weight batteries with increased flexibility in form factor. However, SPEs have not been widely incorporated into commercial batteries at the current time. Their applications are limited primarily due to their relatively low conductivities (~10-5 S/cm) at ambient temperatures. The first project describes the synthesis and characterization of a set of polyester-based polymer electrolytes. The polyesters were synthesized using transition metal-catalyzed alternating copolymerization of epoxides and anhydrides, which allowed the incorporation of a variety of Li+ ion coordinating functional groups including allyl ethers, pendant oligo(ethylene glycol), and esters. The bulk properties of the polymers and polymer-salt mixtures were investigated and compared to results from molecular dynamics (MD) simulations. The simulations were also used to probe the mechanism of Li + binding and transport in the polyesters. The simulations suggested that the relatively low Li + conductivity of the polyesters compared to PEO was most likely due to a lower than optimal density and spacing of the Li + binding sites in the polyesters. The insights from the polyester study were used to design a set of polyethers to further elucidate the source of PEO's unusually high ionic conductivity, as well as potentially improve the conductivity by further optimizing binding site connectivity. The polyethers were synthesized using acyclic diene metathesis (ADMET) polymerization, and a set of polymers was made with very specific and systematic alterations in structure. By studying the ionic conductivity as a function of temperature, we were able to analyze the effect of binding group density and pattern on the ionic conductivity and Li + ion transport mechanism in polyethers. The third project was inspired by the search for catalysts to develop novel high performance materials. Enantioselective [beta]-diiminate zinc catalysts were designed for the synthesis of highly isotactic polycarbonates from CO2 and meso epoxides. The ligand optimization process is described, as well as the characterization of the catalyst and isotactic poly(cyclohexene carbonate).
Functional Polymers For Metal Ion Batteries
DOWNLOAD
Author : Shanqing Zhang
language : en
Publisher: John Wiley & Sons
Release Date : 2023-05-22
Functional Polymers For Metal Ion Batteries written by Shanqing Zhang 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 2023-05-22 with Technology & Engineering categories.
Functional Polymers for Metal-Ion Batteries Unique and useful book covering fundamental knowledge and practical applications of polymer materials in energy storage systems In Functional Polymers for Metal-Ion Batteries, the recent development and achievements of polymer-based materials are comprehensively analyzed in four directions, including electrode materials, binders, separators, and solid electrolytes, highlighting the working mechanisms, classification, design strategies, and practical applications of these polymer materials in mental-ion batteries. Specific sample topics covered in Functional Polymers for Metal-Ion Batteries include: Prominent advantages of various solid-state electrolytes, such as low flammability, easy processability, more tolerance to vibration, shock, and mechanical deformation Why and how functional polymers present opportunities to maximize energy density and pursue the sustainability of the battery industry How the application of functional polymers in metal-ion batteries helps enhance the high energy density of energy storage devices and reduce carbon footprint during production How development of functional separators could significantly lower the cost of battery manufacturing Providing a comprehensive understanding of the role of polymers in the whole configuration of metal-ion batteries from electrodes to electrolytes, Functional Polymers for Metal-Ion Batteries is an ideal resource for materials scientists, electrochemists, and polymer, solid state, and physical chemists who wish to understand the latest developments of this technology.
Development Of Functional Polymeric Materials For Lithium Ion Based Energy Storage Devices
DOWNLOAD
Author : Zhuo Li
language : en
Publisher:
Release Date : 2021
Development Of Functional Polymeric Materials For Lithium Ion Based Energy Storage Devices written by Zhuo Li 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.
"The ever-growing energy demand of modern society calls for application of renewable energy sources. Among various renewable energy sources, solid-state lithium-ion battery (SSLIB) has become a rising star due to its high intrinsic safety, high energy density and sustainability compared with traditional liquid lithium-ion batteries. In the development of SSLIBs, solid polymer materials have attracted intensive attention due to their many desirable properties such as processibility, sustainability and low cost. This dissertation focused on the understanding and development of novel polymer materials for SSLIBs. Chapter 2 discusses a new strategy of modifying the structure of polymer electrolyte to increase its ionic conductivity while preserving other desirable properties, such as oxidative stability by utilizing flexible, oxidatively stable aliphatic segments. Hydrogenated nitrile butadiene rubber (HNBR) and nitrile butadiene rubber (NBR) was blended with lithium bis(trifluoromethanesulfonyl) imide (LiTFSI) to create polymer electrolytes. Their physical and electrochemical properties were characterized in detail. It was found that HNBR:LiTFSI has 3.1×10-7 S/cm at room temperature. Compared with unplasticized PAN:LiTFSI and unsaturated NBR:LiTFSI, ionic conductivity of HNBR:LiTFSI is significantly improved, while the oxidative stability of PAN:LiTFSI is preserved. Chapter 3 focuses on developing a more reliable measure of oxidative stability in polymer electrolyte. Oxidative stability is an important and widely referenced property of battery electrolytes, yet its measurement is often poorly conducted. A capacity-based electrochemical method that measures the reversibility of the system was developed. The absolute stability threshold of PEO/LiTFSI (3.6V vs. Li/Li+) and HNBR/LiTFSI (3.7V vs. Li/Li+) was measured with reversibility test, and further verified by a non-electrochemical method. Chapter 4 explores the possibility of expanding the role of polymeric materials from electrolyte to cathode. Anew cathode chemistry for thin-film battery was proposed and examined. A vapor deposited polymeric charge transfer complex (CTC) cathode, P4VP-ICl was investigated. Spectroscopic, stoichiometric, and electrochemical properties of the CTC complex was collected and analyzed. P4VP-ICI LIPON Li thin film battery was demonstrated on both rigid and flexible substrates. The flexible P4VP-ICI LIPON Li battery can be bent 180ʻ without losing electrochemical performance"--Pages x-xi.
Lithium Sulfur Batteries
DOWNLOAD
Author : Ram Gupta
language : en
Publisher: Elsevier
Release Date : 2022-04-30
Lithium Sulfur Batteries written by Ram Gupta and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-04-30 with Technology & Engineering categories.
Lithium-Sulfur Batteries: Materials, Challenges, and Applications presents the advantages of lithium-sulfur batteries, such as high theoretical capacity, low cost, and stability, while also addressing some of the existing challenges. Some of the challenges are low electrical conductivity, the possible reaction of sulfur with lithium to form a soluble lithium salt, the formation of the dendrimer, large volume variation of cathode materials during the electrochemical reaction, and shuttle behavior of highly soluble intermediate polysulfides in the electrolyte. This book provides some possible solutions to these issues through novel architecture, using composite materials, doping to improve low conductivity, etc., as well as emphasizing novel materials, architectural concepts, and methods to improve the performance of lithium-sulfur batteries. Covers the state-of-the-art progress on materials, technology, and challenges for lithium-sulfur batteries Presents novel synthetic approaches, characterizations, and applications of nanostructured and 2D nanomaterials for energy applications Provides fundamentals of electrochemical behavior and their understanding at nanoscale for emerging applications in lithium-sulfur batteries
Engineered Nano Architectures As Advanced Anode Materials For Next Generation Lithium Ion Batteries
DOWNLOAD
Author : Fathy Mohamed Hassan
language : en
Publisher:
Release Date : 2014
Engineered Nano Architectures As Advanced Anode Materials For Next Generation Lithium Ion Batteries written by Fathy Mohamed Hassan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with categories.
Li-ion batteries have a predominant market share as mobile energy storage devices, especially in consumer electronics. New concepts for electrode material designs are, however, necessary to boost their energy and power densities, and most importantly, the long term cycle stability. This will allow for these devices to gain widespread acceptance in electric vehicles, an area with immense market potential and environmental benefits. From a practical perspective, new electrode materials must be developed by simplistic, environmentally friendly and low cost processes. As a new class of electrode materials, mesoporous Sn/SnO2/Carbon composites with uniformly distributed Sn/SnO2 embedded within the carbon pore walls have been rationally designed and synthesized. These nanocomposites have been characterized by x-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), x-ray photoelectron spectroscopy (XPS), and tested as negative electrodes in a cell using lithium foil as the counter electrode. The inclusion of metallic Sn in SnO2/CMK3 resulted in a unique, ordered structure and provided a synergistic effect which resulted in an impressive initial reversible capacity of 799 mAh g-1. In addition, at a high current of 800 mAg-1, the heterogeneous structure was able to provide a stable capacity of 350 mAhg-1 and a retention capacity of ~ 670 mAh g-1 after 60 cycles. While Sn/SnO2 composites have been deemed very promising, Si materials boast improved energy storage capacities, inspiring us to investigate these materials as new anode structure. A novel one-pot synthesis for the sub-eutectic growth of (111) oriented Si nanowires on an in-situ formed nickel nanoparticle catalyst prepared from an inexpensive nickel nitrate precursor is developed. Anchoring the nickel nanoparticles to a simultaneously reduced graphene oxide support created synergy between the individual components of the c-SiNW-G composite, which greatly improved the reversible charge capacity and its retention at high current density when applied as an anode for a lithium-ion battery. The c-SiNW-G electrodes in a Li-ion battery achieved excellent high-rate performance, producing a stable reversible capacity of 550 mAh g-1 after 100 cycles at 6.8 A g-1 (78% of that at 0.1 A g-1). Thus, this process creates an important building block for a new wave of low cost silicon nanowire materials and a promising avenue for high rate Li-ion batteries. While excellent rate capability was obtained by using SiNW/graphene based material, simplifying the process may drive Si based materials to commercialization. A novel, economical flash heat treatment to fabricate silicon based electrodes is introduced to boost the performance and cycle capability of Li-ion batteries. The treatment results in a high mass fraction of Si, improved interfacial contact, synergistic SiO2/C coating and a conductive cellular network for improved electronic conductivity, as well as flexibility for stress compensation. The developed electrodes achieve first cycle efficiency of ~84% and a maximum charge capacity of 3525 mA h g-1, which is almost 84% of silicon's theoretical maximum. Furthermore, a stable reversible charge capacity of 1150 mA h g-1 at 1.2 A g-1 can be achieved over 500 cycles. Thus, the flash heat treatment method introduces a promising avenue for the production of industrially viable, next-generation Li-ion batteries. Even though we obtained a dramatic improvement to a treated electrode based on commercial silicon, we still need to boast the cycle stability and high areal capacity achieved by higher electrode loading. Thus, we report a scalable approach that relies on covalent binding commercially available Si nanoparticles (SiNP) to sulfur-doped graphene (SG) followed by shielding them with cyclized polyacrylonitrile. The covalent synergy led to improved material property that can deliver stable reversible capacity of 1033 mAh g-1 for more than 2000 cycles at a rate of 1 A g-1. The areal capacity was 3.5 mAh cm-2 at 0.1 A g-1, approaching the commercial demand. The spatial arrangement of Si after cycling reveals that it was confined in nanowires morphology. This reveals that the solid electrolyte interphase remains stable leading to superior cyclability. Our DFT calculations revealed covalent hybrid interaction between Si, S, and C leading to stable material configuration. Furthermore, the structure synergy facilitated lithium diffusion, which strongly supports our results. This simple, low cost, feasible, and safe approach provide new avenues for engineering electrode structure for enhanced performance.