کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1288760 973274 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Cycling performance and thermal stability of lithium polymer cells assembled with ionic liquid-containing gel polymer electrolytes
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Cycling performance and thermal stability of lithium polymer cells assembled with ionic liquid-containing gel polymer electrolytes
چکیده انگلیسی

Gel polymer electrolytes containing 1-butyl-1-methylpyrrolidinium bis(trifluoromethanesulfonyl)imide and a small amount of additive (vinylene carbonate, fluoroethylene carbonate, and ethylene carbonate) are prepared, and their electrochemical properties are investigated. The cathodic limit of the gel polymer electrolytes can be extended to 0 V vs. Li by the formation of a protective solid electrolyte interphase on the electrode surface. Using these gel polymer electrolytes, lithium metal polymer cells composed of a lithium anode and a LiNi1/3Co1/3Mn1/3O2 cathode are assembled, and their cycling performances are evaluated at room temperature. The cells show good cycling performance, comparable to that of a cell assembled with gel polymer electrolyte containing standard liquid electrolyte (1.0 M LiPF6 in ethylene carbonate/diethylene carbonate). Flammability tests and differential scanning calorimetry studies show that the presence of the ionic liquid in the gel polymer electrolyte considerably improves the safety and thermal stability of the cells.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 196, Issue 16, 15 August 2011, Pages 6750–6755
نویسندگان
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