Evaluation of Doped Polyethylene Oxide as Solid Electrolyte for Polymer Batteries PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Evaluation of Doped Polyethylene Oxide as Solid Electrolyte for Polymer Batteries PDF full book. Access full book title Evaluation of Doped Polyethylene Oxide as Solid Electrolyte for Polymer Batteries by . Download full books in PDF and EPUB format.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 59
Get Book Here
Book Description
This report presents results of an investigation on preparation and characterization of polyethylene oxide (PEO) and lithium tetrafluoroborate (LiBF4) complexes for application as solid electrolytes in polymer batteries. AC conductivity and permittivity (dielectric constant) as a function of frequency, temperature, and concentration of lithium tetrafluoroborate (LiBF4) in polyethylene oxide (PEO) films were measured with a TA Instruments DEA 2970, Dielectric Analyzer. Differential Scanning Calorimetry (DSC) was used to trace changes of the morphology of the polymeric medium. Thermogravimetry (TG)/ derivative thermogravimetry (DTG) were used to follow the decomposition of components and define the maximum temperature limits for these measurements. Infrared Spectroscopy monitored structural evolution as the O:Li ratio in the polymer complex was varied. Thin films of a complex (O:Li = 8) were used to assemble Li/Polymer/Li Cell for electrochemical characterization. The study showed that the relationship of dopant concentration to electrical properties is rather complex. Degree of ion-pairing, dissociation of ions on dilution, changes in the morphology of the polymeric medium, and variations in viscosity and its consequence on ion mobility were considered to explain the data. An optimum in room conductivity occurred in a complex with O:Li ratio of 8. Battery, ionic conductivity, polymers, PEO, electrolytes, and characterization.
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 59
Get Book Here
Book Description
This report presents results of an investigation on preparation and characterization of polyethylene oxide (PEO) and lithium tetrafluoroborate (LiBF4) complexes for application as solid electrolytes in polymer batteries. AC conductivity and permittivity (dielectric constant) as a function of frequency, temperature, and concentration of lithium tetrafluoroborate (LiBF4) in polyethylene oxide (PEO) films were measured with a TA Instruments DEA 2970, Dielectric Analyzer. Differential Scanning Calorimetry (DSC) was used to trace changes of the morphology of the polymeric medium. Thermogravimetry (TG)/ derivative thermogravimetry (DTG) were used to follow the decomposition of components and define the maximum temperature limits for these measurements. Infrared Spectroscopy monitored structural evolution as the O:Li ratio in the polymer complex was varied. Thin films of a complex (O:Li = 8) were used to assemble Li/Polymer/Li Cell for electrochemical characterization. The study showed that the relationship of dopant concentration to electrical properties is rather complex. Degree of ion-pairing, dissociation of ions on dilution, changes in the morphology of the polymeric medium, and variations in viscosity and its consequence on ion mobility were considered to explain the data. An optimum in room conductivity occurred in a complex with O:Li ratio of 8. Battery, ionic conductivity, polymers, PEO, electrolytes, and characterization.
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 994
Get Book Here
Book Description
Author: B. Scrosati
Publisher: Springer Science & Business Media
ISBN: 9401119163
Category : Science
Languages : en
Pages : 375
Get Book Here
Book Description
The main motivation for the organization of the Advanced Research Workshop in Belgirate was the promotion of discussions on the most recent issues and the future perspectives in the field of Solid State lonics. The location was chosen on purpose since Belgirate was the place were twenty years ago, also then under the sponsorship of NATO, the very first international meeting on this important and interdisciplinary field took place. That meeting was named "Fast Ion Transport in Solids" and gathered virtually everybody at that time having been active in any aspect of motion of ions in solids. The original Belgirate Meeting made for the first time visible the technological potential related to the phenomenon of the fast ionic transport in solids and, accordingly, the field was given the name "Solid State lonics". This field is now expanded to cover a wide range of technologies which includes chemical sensors for environmental and process control, electrochromic windows, mirrors and displays, fuel cells, high performance rechargeable batteries for stationary applications and electrotraction, chemotronics, semiconductor ionics, water electrolysis cells for hydrogen economy and other applications. The main idea for holding an anniversary meeting was that of discussing the most recent issues and the future perspectives of Solid State lonics just twenty years after it has started at the same location on the lake Maggiore in North Italy.
Author: Mengying Yuan
Publisher:
ISBN:
Category : Mechanical engineering
Languages : en
Pages :
Get Book Here
Book Description
Solid polymer electrolytes (SPEs) can resolve the safety problems associated with the traditional liquid electrolytes while offering mechanical stability and thin film manufacturability. The main issue with SPEs is the lower ionic conductivity at room temperature compared to that of liquid electrolytes. Nanosized ceramic powders are known to enhance the ionic conductivity as well as the mechanical stability of solid polymer electrolytes. In this study, graphene oxide (GO) nanosheets were used as nanosized fillers in polyethylene oxide (PEO) electrolyte. We demonstrated that about an order of magnitude improvement in lithium-ion conductivity, as high as 10-4 S/cm at room temperature, was achieved with GO fillers. We used thermal analysis, impedance spectroscopy, fourier transform infrared, and morphology analysis to investigate the GO/PEO films. A significant improvement in the tensile strength of the polymer electrolyte was observed with only 1 wt % GO fillers while the % elongation remains uncompromised.
Author: Jean-Marie Tarascon
Publisher: John Wiley & Sons
ISBN: 1118998146
Category : Science
Languages : en
Pages : 96
Get Book Here
Book Description
The electrochemical storage of energy has become essential in assisting the development of electrical transport and use of renewable energies. French researchers have played a key role in this domain but Asia is currently the market leader. Not wanting to see history repeat itself, France created the research network on electrochemical energy storage (RS2E) in 2011. This book discusses the launch of RS2E, its stakeholders, objectives, and integrated structure that assures a continuum between basic research, technological research and industries. Here, the authors will cover the technological advances as well as the challenges that must still be resolved in the field of electrochemical storage, taking into account sustainable development and the limited time available to us.
Author: K. Srinivas
Publisher:
ISBN:
Category :
Languages : en
Pages : 5
Get Book Here
Book Description
Polymer electrolyte films consisting of poly(ethylene oxide) (PEO)doped with various concentrations of copper chloride are prepared by solution casting technique and characterized for their structure - property relationships. The solvation of Cu2+ ions with PEO is confirmed by the spectroscopic (UV) and XRD studies. The temperature dependence of the doncudtivity has been studied in the range 30 C - 100 C. The ac impedance results reveal that the conductivity of the polymer electrolyte PEO + CuCl2 complex exhibits in the order - 10-1 S/cm and it increases significantly to a value of - 10-5 S/cm upon adding a small fraction of PVDF in the above polymer electrolyte blend .. These polymer electrolyte films can be used for the fabrication of thin film all solid state polymer batteries. [Authors' abstract].
Author: Achchhe Lal Sharma
Publisher: CRC Press
ISBN: 1000756114
Category : Science
Languages : en
Pages : 276
Get Book Here
Book Description
Polymer Electrolytes and their Composites for Energy Storage/Conversion Devices presents a state-of-the-art overview of the research and development in the use of polymers as electrolyte materials for various applications. It covers types of polymer electrolytes, ion dynamics, and the role of dielectric parameters and a review of applications. Divided into two parts, the first part of the book focuses on the types of polymer electrolytes, ion dynamics, and the role of dielectric parameters, while the second part provides a critical review of applications based on polymer electrolytes and their composites. This book: Presents the fundamentals of polymer composites for energy storage/conversion devices Explores the ion dynamics and dielectric properties role in polymer electrolytes Provides detailed preparation methods and important characterization techniques to evaluate the electrolyte potential Reviews analysis of current updates in polymer electrolytes Includes various applications in supercapacitor, battery, fuel cell, and electrochromic windows The book is aimed at researchers and graduate students in physics, materials science, chemistry, materials engineering, energy storage, engineering physics, and industry.
Author: Prasanth Raghavan
Publisher: CRC Press
ISBN: 1000351793
Category : Science
Languages : en
Pages : 303
Get Book Here
Book Description
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. The influence of these electrolyte properties on the performance of different energy storage devices is discussed in detail. Features: • Discusses a variety of energy storage systems and their workings and a detailed history of LIBs • Covers a wide range of polymer-based electrolytes including PVdF, PVdF-co-HFP, PAN, blend polymeric systems, composite polymeric systems, and polymer ionic liquid gel electrolytes • Provides a comprehensive review of biopolymer electrolytes for energy storage 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, chemical, electrical, and mechanical engineers, as well as those involved in related disciplines.
Author: Kezhen Qi
Publisher: Frontiers Media SA
ISBN: 2889663329
Category : Science
Languages : en
Pages : 162
Get Book Here
Book Description
This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Author: China Society of Automotive Engineers
Publisher: Springer Nature
ISBN: 9811620903
Category : Technology & Engineering
Languages : en
Pages : 1670
Get Book Here
Book Description
These proceedings gather outstanding papers presented at the China SAE Congress 2020, held on Oct. 27-29, Shanghai, China. Featuring contributions mainly from China, the biggest carmaker as well as most dynamic car market in the world, the book covers a wide range of automotive-related topics and the latest technical advances in the industry. Many of the approaches in the book will help technicians to solve practical problems that affect their daily work. In addition, the book offers valuable technical support to engineers, researchers and postgraduate students in the field of automotive engineering.
