کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6616923 459629 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The study of novel gel polymer electrolytes plasticized with non-volatile tris(methoxypolyethyleneglycol) aluminate esters
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
The study of novel gel polymer electrolytes plasticized with non-volatile tris(methoxypolyethyleneglycol) aluminate esters
چکیده انگلیسی
A series of novel gel polymer electrolytes (GPEs) based on a co-polymer matrix of methoxy-poly(ethylene glycol) methacrylate (MPEGM) and hexadecal-poly(ethylene glycol) methacrylate (HPEGM) are synthesized in this study using non-volatile tris(methoxypolyethyleneglycol) aluminate ester ((MPEGn)3-Al) as the plasticizer. Their thermal stability and ionic conductivity are studied by differential scanning calorimeter, thermogravimetric analysis and alternating current impedance techniques. The results show that all the synthesized GPEs possess excellent thermal stability and exhibit relatively high ionic conductivity. Among all the synthesized GPEs, one with the composition of 40 wt% MPEGM, 10 wt% HPEGM and 50 wt% (MPEG7)3-Al exhibits the highest ionic conductivity, up to 0.59 × 10−3 S cm−1 at 30 °C when the salt concentration is [Li]:[EO] = 1:20. In addition, a coin cell based on this GPE, with LiFePO4 as cathode and metallic lithium as anode shows discharge capacities as high as 146 mAh g−1 and 151 mAh g−1 when cycled at 30 °C and 50 °C, respectively, under a current rate of 0.1 C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 106, 1 September 2013, Pages 209-214
نویسندگان
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