کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7735781 | 1497961 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Improved lithium-metal/vanadium pentoxide polymer battery incorporating crosslinked ternary polymer electrolyte with N-butyl-N-methylpyrrolidinium bis(perfluoromethanesulfonyl)imide
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Li metal polymer batteries incorporating crosslinked ternary PEO/PYR14TFSI/LiTFSI solid polymer electrolyte (SPE) have been prepared, using V2O5 as active cathode material. As a result of the optimization of the SPE as well as the cell assembly and cycling conditions, V2O5 lithium metal polymer batteries allow reaching 796 Wh kgâ1 (of V2O5) at C/10 at 40 °C and maintaining 663 Wh kgâ1 after 200 cycles at 40 °C. This is higher than the theoretical specific energy of LiCoO2 vs. Li of 609 Wh kgâ1. Cycling at 80 °C allows reaching 270 mAh gâ1 at C/2 and 210 mAh gâ1 at 1 C, while at 20 °C it is still possible to reach a discharge capacity of almost 100 mAh gâ1 at low rates. Post-cycling SEM and EDX imaging showed that, after 200 cycles at 40 °C, if the plating of Li is not fully homogeneous, no sign of dendrite growth nor obvious vanadium dissolution and redeposition on the anode side occurred.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 271, 20 December 2014, Pages 334-341
Journal: Journal of Power Sources - Volume 271, 20 December 2014, Pages 334-341
نویسندگان
Irene Osada, Jan von Zamory, Elie Paillard, Stefano Passerini,