کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
12039543 | 1007993 | 2019 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Novel configuration of heat-resistant gel polymer electrolyte with electrospun poly (vinylidene fluoride-co-hexafluoropropylene) and poly-m-phenyleneisophthalamide composite separator for high-safety lithium-ion battery
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this work, a novel nanofiber composite membrane constituting poly (vinylidene fluoride-co-hexafluoropropylene)/poly-m-phenyleneiso-phthalamide (PVDF-HFP/PMIA) was successfully fabricated through one-step electrospinning technique. The PVDF-HFP/PMIA nanofibers possessed low average diameter and uniform diameter distribution, which were able to be acted as matrix for gel polymer electrolyte. Significantly, the presence of PVDF-HFP endowed PMIA membrane with considerable high electrolyte uptake and porosity, eminent mechanical strength and remarkable thermal shrinkage resistance. Compared with pure PMIA and polyethylene separators, the PVDF-HFP/PMIA separator obtained higher ionic conductivity, lower interfacial resistance and more stable electrochemical window. The Li/LiCoO2 battery with the prepared separator reflected admirable cycle stability with outstanding first discharge capacity up to 153.8â¯mAhâ¯gâ1 at 0.5C rate and superior capacity retention of 88.75% after 100â¯cycles.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 236, 1 February 2019, Pages 101-105
Journal: Materials Letters - Volume 236, 1 February 2019, Pages 101-105
نویسندگان
Huijuan Zhao, Nanping Deng, Jingge Ju, Zongjie Li, Weimin Kang, Bowen Cheng,