کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10269253 459825 2005 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
In situ composite of nano SiO2-P(VDF-HFP) porous polymer electrolytes for Li-ion batteries
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
In situ composite of nano SiO2-P(VDF-HFP) porous polymer electrolytes for Li-ion batteries
چکیده انگلیسی
Nano SiO2-P(VDF-HFP) composite porous membranes were prepared as the matrix of porous polymer electrolytes through in situ composite method based on hydrolysis of tetraethoxysilane and phase inversion. SEM, TEM, DSC and AC impedance analysis were carried out. It is found that the in situ prepared nano silica was homogeneously dispersed in the polymeric matrix, enhanced conductivity and electrochemical stability of porous polymer electrolytes, and improved the stability of the electrolytes against lithium metal electrodes. The in situ composite method was found to be much better than the direct composite method in lowering the interfacial resistance between electrolyte and lithium metal electrode. Moreover, cycle test of lithium batteries using lithium metal as anode and sulfur composite material as cathode showed that the electrolyte based on in situ composite of silica presented stable charge-discharge behavior and little capacity loss of battery.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 51, Issue 6, 25 November 2005, Pages 1069-1075
نویسندگان
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