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Salt-in-Polymer Electrolytes for Lithium Ion Batteries Based on Organo-Functionalized Polyphosphazenes and Polysiloxanes (Progress in Physical Chemistry Volume 4: Ionic Motion in Materials with Disordered Structures - From Elementary Steps to Macroscopic Transport)  
Yazarlar
 Yunus KARATAŞ Yunus KARATAŞ
Kırşehir Ahi Evran Üniversitesi, Türkiye
Özet
An overview is given on polymer electrolytes based on organo-functionalized polyphosphazenes and polysiloxanes. Chemical and electrochemical properties are discussed with respect to the synthesis, the choice of side groups and the goal of obtaining membranes and thin films that combine high ionic conductivity and mechanical stability. Electrochemical stability, concentration polarization and the role of transference numbers are discussed with respect to possible applications in lithium batteries. It is shown that the ionic conductivities of salt-in-polymer membranes without additives and plasticizers are limited to maximum conductivities around 10-4 S/cm. Nevertheless, a straightforward strategy based on additives can increase the conductivities to at least 10-3 S/cm and maybe further. In this context, the future role of polymers for safe, alternative electrolytes in lithium batteries will benefit from concepts based on polymeric gels, composites and hybrid materials. Presently developed polymer electrolytes with oligoether sidechains are electrochemically stable in the potential range 0-4.5V (vs. Li/Li+ reference).
Anahtar Kelimeler
Electrochemistry | Ionic Conductivity | Polymer Electrolyte | Polymer Synthesis | Polyphosphazene | Polysiloxane
Kitap Adı Progress in Physical Chemistry Volume 4: Ionic Motion in Materials with Disordered Structures - From Elementary Steps to Macroscopic Transport
Bölüm(ler) Salt-in-Polymer Electrolytes for Lithium Ion Batteries Based on Organo-Functionalized Polyphosphazenes and Polysiloxanes
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Kitap Niteliği Scopus indeksinde taranan bilimsel kitap
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Basım Tarihi 01-2011
ISBN 9783486711448, 9783486705508
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