کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1876828 1531907 2012 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
AC ionic conductivity and DC polarization method of lithium ion transport in PMMA–LiBF4 gel polymer electrolytes
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک و نجوم (عمومی)
پیش نمایش صفحه اول مقاله
AC ionic conductivity and DC polarization method of lithium ion transport in PMMA–LiBF4 gel polymer electrolytes
چکیده انگلیسی

Polymethylmethacrylate (PMMA)-based gel polymer electrolytes comprising ethylene carbonate–propylene carbonate (EC/PC) mixed solvent plasticizer and various concentrations of lithium tetrafluoroborate (LiBF4) salt are prepared using a solvent casting technique. Electrical conductivity and transference number measurements were carried out to investigate conductivity and charge transport in the gel polymer electrolytes. The conductivity results show that the ionic conductivity of the samples increases when the amount of salt is increased, however decreases after reaching the optimum value. This result is consistent with the transference number measurements. The conductivity–frequency dependence plots show two distinct regions; i.e. at lower frequencies the conductivity increases with increasing frequency and the frequency independent plateau region at higher frequencies. The temperature-dependence conductivity of the films seems to obey the Arrhenius rule.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Results in Physics - Volume 2, 2012, Pages 1–4
نویسندگان
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