کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1285303 1497914 2016 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ethyl 3,3,3-trifluoropropanoate as an additive to improve the cycling performance of LiMn2O4 cathode on lithium-ion batteries at elevated temperature
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Ethyl 3,3,3-trifluoropropanoate as an additive to improve the cycling performance of LiMn2O4 cathode on lithium-ion batteries at elevated temperature
چکیده انگلیسی


• TFPE improved cyclic stability of LiMn2O4/Li cells at elevated temperature.
• TFPE participated in the formation of SEI on the surface of electrode.
• The suppression of transition metal ion dissolution was due to TFPE.

Ethyl 3,3,3-trifluoropropanoate (TFPE) is an additive that extends the life of the LiMn2O4/Li cell. After 200 charge and discharge cycles at 55 °C, a LiMn2O4/Li cell increases the capacity retention by 13.2% (48.2% without additive versus 61.4% with additive) when 0.5 vol% TFPE is added to the electrolyte. Versus TFPE-free cells, the additive inhibits the formation of HF induced erosion of the LiMn2O4 electrode and reduces the interfacial impedance by 61.2% (drops to 139 from 227 Ohm).

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 318, 30 June 2016, Pages 264–269
نویسندگان
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