Transport Properties Of Polymer Electrolytes

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Transport Properties Of Polymer Electrolytes

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Author : Anatoly Golovnev
language : en
Publisher:
Release Date : 2011

Transport Properties Of Polymer Electrolytes written by Anatoly Golovnev and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.

A binary, symmetric, polymer electrolyte placed between flat, infinite, blocking and ideal electrodes is considered. To describe the system the Poisson-Nernst-Planck (PNP) approach is employed in one dimension. The steady state as well as the dynamical case of the PNP equations is treated analytically. For the steady state the exact solution of the nonlinear problem is found and analyzed in terms of Jacobi elliptic functions. An approximate solution, expressed via elementary functions, is presented. The breakdown of the PNP approach at high applied voltages is discussed. The solution is generalized to the multidimensional case. The dynamical problem is studied in the linear regime for two general cases: DC- and AC applied voltages. In both cases the analytical solution of the PNP equations is presented whereas several time regimes can be distinguished. The limit of the applicability of the PNP approach at high frequencies of the applied voltage is pointed out.

Dependence Of Transport Properties And Influence Of Substrates On Structure And Polymer Dynamics In A Composite Polymer Electrolyte

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Author : Robert L. Karlinsey
language : en
Publisher:
Release Date : 2003

Dependence Of Transport Properties And Influence Of Substrates On Structure And Polymer Dynamics In A Composite Polymer Electrolyte written by Robert L. Karlinsey and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with categories.

Transport Properties Of The Solid Polymer Electrolyte Systemp Eo Nlitfsi

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Author :
language : en
Publisher:
Release Date : 1999

Transport Properties Of The Solid Polymer Electrolyte Systemp Eo Nlitfsi written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999 with categories.

Solid Polymer Electrolytes

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Author : Fiona M. Gray
language : en
Publisher: Wiley-VCH
Release Date : 1991

Solid Polymer Electrolytes written by Fiona M. Gray and has been published by Wiley-VCH this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Polyélectrolytes categories.

This book is a welcome response to the general concerns for the generation and conservation of energy in the future. It gives a comprehensive overview of both the fundamental and applied aspects of solid polymer electrolytes. Topics discussed include: * Polymer Electrolyte-based Devices * Homopolymer Hosts * The Interaction between Polymer and Salt * Conductivity in Polymer Electrolytes * Polymer Electrolyte Architecture * Transport Properties Effects of Dynamic Disorder * The Electrode-Electrolyte Interface Newcomers and experts alike will greatly benefit from the lucid and objective analysis this book provides.

Electrode Materials For Energy Storage And Conversion

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Author : Mesfin A. Kebede
language : en
Publisher: CRC Press
Release Date : 2021-11-17

Electrode Materials For Energy Storage And Conversion written by Mesfin A. Kebede and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-11-17 with Science categories.

This book provides a comprehensive overview of the latest developments and materials used in electrochemical energy storage and conversion devices, including lithium-ion batteries, sodium-ion batteries, zinc-ion batteries, supercapacitors and conversion materials for solar and fuel cells. Chapters introduce the technologies behind each material, in addition to the fundamental principles of the devices, and their wider impact and contribution to the field. This book will be an ideal reference for researchers and individuals working in industries based on energy storage and conversion technologies across physics, chemistry and engineering. FEATURES Edited by established authorities, with chapter contributions from subject-area specialists Provides a comprehensive review of the field Up to date with the latest developments and research Editors Dr. Mesfin A. Kebede obtained his PhD in Metallurgical Engineering from Inha University, South Korea. He is now a principal research scientist at Energy Centre of Council for Scientific and Industrial Research (CSIR), South Africa. He was previously an assistant professor in the Department of Applied Physics and Materials Science at Hawassa University, Ethiopia. His extensive research experience covers the use of electrode materials for energy storage and energy conversion. Prof. Fabian I. Ezema is a professor at the University of Nigeria, Nsukka. He obtained his PhD in Physics and Astronomy from University of Nigeria, Nsukka. His research focuses on several areas of materials science with an emphasis on energy applications, specifically electrode materials for energy conversion and storage.

Characterization Of Transport Phenomena In Polymer Electrolyte Systems

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Author : Hooman Hafezi
language : en
Publisher:
Release Date : 2002

Characterization Of Transport Phenomena In Polymer Electrolyte Systems written by Hooman Hafezi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with categories.

Investigation On The Influence Of Macromolecular Additives On Transport Properties Of Lithium Polymer Electrolytes

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Author : Lekshmi Sarojini Amma
language : en
Publisher:
Release Date : 2013

Investigation On The Influence Of Macromolecular Additives On Transport Properties Of Lithium Polymer Electrolytes written by Lekshmi Sarojini Amma and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013 with Dielectric measurements categories.

Synthesis And Characterization Of Solid Polymer Electrolytes

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Author : Anji Reddy Polu
language : en
Publisher: LAP Lambert Academic Publishing
Release Date : 2012-08

Synthesis And Characterization Of Solid Polymer Electrolytes written by Anji Reddy Polu and has been published by LAP Lambert Academic Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-08 with categories.

Ion conducting polymer electrolytes in thin flexible forms show great technological potentials to fabricate all-solid-state mini/micro electrochemical power sources viz. batteries, fuel cells, supercapacitors etc. This book contains the synthesis and characterization of solid polymer electrolytes, is mainly focused on the objectives: to develop some new Mg2+ ion conducting solid polymer and composite polymer electrolytes using a novel solution casting technique; to characterize these materials using various models and experimental techniques; to understand the ion transport properties; subsequently, to employ these solid polymer electrolytes in the fabrication of solid state batteries and study the cell performances under constant load. This book is also provide the basic ideas of ion conduction mechanism in polymer electrolytes and also explained various models for transport phenomenon.

Ion Transport And Structure In Polymer Electrolytes With Applications In Lithium Batteries

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Author : Mahati Chintapalli
language : en
Publisher:
Release Date : 2016

Ion Transport And Structure In Polymer Electrolytes With Applications In Lithium Batteries written by Mahati Chintapalli and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016 with categories.

When mixed with lithium salts, polymers that contain more than one chemical group, such as block copolymers and endgroup-functionalized polymers, are promising electrolyte materials for next-generation lithium batteries. One chemical group can provide good ion solvation and transport properties, while the other chemical group can provide secondary properties that improve the performance characteristics of the battery. Secondary properties of interest include non-flammability for safer lithium ion batteries and high mechanical modulus for dendrite resistance in high energy density lithium metal batteries. Block copolymers and other materials with multiple chemical groups tend to exhibit nanoscale heterogeneity and can undergo microphase separation, which impacts the ion transport properties. In block copolymers that microphase separate, ordered self-assembled structures occur on longer length scales. Understanding the interplay between structure at different length scales, salt concentration, and ion transport is important for improving the performance of multifunctional polymer electrolytes. In this dissertation, two electrolyte materials are characterized: mixtures of endgroup-functionalized, short chain perfluoropolyethers (PFPEs) and lithium bis(trifluoromethanesulfonyl) imide (LiTFSI) salt, and mixtures of polystyrene-block-poly(ethylene oxide) (PS-b-PEO; SEO) and LiTFSI. The PFPE/LiTFSI electrolytes are liquids in which the PFPE backbone provides non-flammability, and the endgroups resemble small molecules that solvate ions. In these electrolytes, the ion transport properties and nanoscale heterogeneity (length scale ~1 nm) are characterized as a function of endgroup using electrochemical techniques, nuclear magnetic resonance spectroscopy, and wide angle X-ray scattering. Endgroups, especially those containing PEO segments, have a large impact on ionic conductivity, in part because the salt distribution is not homogenous; we find that salt partitions preferentially into the endgroup-rich regions. On the other hand, the SEO/LiTFSI electrolytes are fully microphase-separated, solid, lamellar materials in which the PS block provides mechanical rigidity and the PEO block solvates the ions. In these electrolytes longer length scale structure (~10 nm - 1 [mu]m) influences ion transport. We study the relationships between the lamellar grain size, salt concentration, and ionic conductivity using ac impedance spectroscopy, small angle X-ray scattering, electron microscopy, and finite element simulations. In experiments, decreasing grain size is found to correlate with increasing salt concentration and increasing ionic conductivity. Studies on both of these polymer electrolytes illustrate that structure and ion transport are closely linked.

Polymer Electrolytes For Energy Storage Devices

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Author : Prasanth Raghavan
language : en
Publisher: CRC Press
Release Date : 2021-03-23

Polymer Electrolytes For Energy Storage Devices written by Prasanth Raghavan and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-03-23 with Technology & Engineering categories.

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.