کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1294262 | 973603 | 2009 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A new phosphate-based nonflammable electrolyte solvent for Li-ion batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
A new fire-retardant—dimethyl(2-methoxyethoxy)methylphosphonate (DMMEMP) has been synthesized and evaluated as a high safe electrolyte solvent for lithium-ion batteries. This report summarizes the physical and electrochemical properties of the new compound. It is found that, this nonflammable phosphonate has a moderate viscosity, a high dielectric constant and a good thermal stability. It can provide a wide electrochemical stability window of 0–5.5 V (vs. Li+/Li), a high conductivity of 2.0 mS cm−1 at 20 °C with 1 M LiTFSI. The electrochemical performance investigated with the Li/LiFePO4 half-cells shows a good capacity of 148.1 mAh g−1 and a coulombic efficiency close to 100% at the 10th cycle.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 188, Issue 2, 15 March 2009, Pages 570–573
Journal: Journal of Power Sources - Volume 188, Issue 2, 15 March 2009, Pages 570–573
نویسندگان
Lei Wu, Zhiping Song, Lishan Liu, Xiangfeng Guo, Lingbo Kong, Hui Zhan, Yunhong Zhou, Zaoying Li,