Activation of transport and local dynamics in polysiloxane based salt in polymer electrolytes a multinuclear NMR study
Yazarlar (5)
Miriam Kunze
University Of Münster, Almanya
University Of Münster, Almanya
Prof. Dr. Yunus KARATAŞ Kırşehir Ahi Evran Üniversitesi, Türkiye
Hans-Dieter Wiemhöfer
University Of Münster, Almanya
University Of Münster, Almanya
Hellmut Eckert
University Of Münster, Almanya
University Of Münster, Almanya
Monika Schönhoff
University Of Münster, Almanya
University Of Münster, Almanya
| Makale Türü | Özgün Makale (SSCI, AHCI, SCI, SCI-Exp dergilerinde yayınlanan tam makale) | ||
| Dergi Adı | Physical Chemistry Chemical Physics | ||
| Dergi ISSN | 1463-9076 Wos Dergi Scopus Dergi | ||
| Dergi Tarandığı Indeksler | SSCI | ||
| Makale Dili | İngilizce | Basım Tarihi | 01-2010 |
| Kabul Tarihi | 12-04-2026 | Yayınlanma Tarihi | – |
| Cilt / Sayı / Sayfa | 12 / 25 / 6844–6851 | DOI | 10.1039/b925840j |
| Makale Linki | http://xlink.rsc.org/?DOI=b925840j | ||
| Özet |
| We have investigated a new improved lithium ion conducting salt-in-polymer electrolyte system consisting of a polysiloxane backbone with oligoether side chains and added LiCF3SO3 (LiTf), which has a conductivity at 30 °C of up to 1.3 × 10−4 S cm−1 and up to 6.9 × 10−5 S cm−1 after cross-linking, which is employed to enhance mechanical stability. The mechanisms governing local dynamics and mass transport have been studied on the basis of temperature dependent spin–lattice relaxation time and pulsed field gradient diffusion measurements for 7Li, 19F and 1H, respectively. The correlation times characterizing the local ion dynamics reflect the complexation of the cations by the polyether side chains of the polymer and show the anion as the more mobile species. In contrast, 7Li and 19F diffusion coefficients and their activation energies are rather similar, suggesting the formation of ion pairs with similar … |
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| Google Scholar | 47 |
| Scopus | 5 |
| Web of Science | 36 |