کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
634307 | 1456062 | 2013 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improved thermal and electrochemical performances of PMMA modified PE separator skeleton prepared via dopamine-initiated ATRP for lithium ion batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this work, PMMA layer was immobilized onto PE separator skeleton via surface-initiated ATRP based on dopamine pretreatment. The incorporated “active” layer made separator matrix could be swollen by electrolyte solution to some extent and show some properties of gel polymer electrolyte. Resulted separators were characterized by ATR-FTIR, SEM, contact angle and electrochemical methods. The prepared separators showed improved thermal stability. The electrolyte uptake and ionic conductivity were also elevated due to the improved affinity between separator and liquid electrolyte. The room temperature ion conductivity reached up to 1.19Ã10â3Â SÂ cmâ1. The stability of liquid electrolyte trapped in the separator was enhanced obviously. Cells assembled with such “active separators” showed better cycle performances. These results primarily showed that it was a promising way to prepare high performance PE based separators for lithium ion batteries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Membrane Science - Volume 437, 15 June 2013, Pages 160-168
Journal: Journal of Membrane Science - Volume 437, 15 June 2013, Pages 160-168
نویسندگان
Jun-Li Shi, Li-Feng Fang, Hao Li, Hong Zhang, Bao-Ku Zhu, Li-Ping Zhu,