کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7738111 | 1497981 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Anatase TiO2 nanoparticles for high power sodium-ion anodes
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Anatase TiO2 nanoparticles for high power sodium-ion anodes Anatase TiO2 nanoparticles for high power sodium-ion anodes](/preview/png/7738111.png)
چکیده انگلیسی
Sodium-ion batteries (SIBs) are considered to be a promising low-cost alternative to common lithium-ion batteries. Herein, we present a detailed electrochemical characterization of anatase TiO2 nanoparticles as anode material for Na-ion batteries, highlighting the substantial influence of the electrolyte composition (salt and solvent) on the obtainable specific capacity, cycling stability, and particularly the coulombic efficiency. TiO2-based electrodes cycled using a 1M solution of NaClO4 in a mixture of ethylene carbonate and propylene carbonate present excellent high rate capability, offering about 100 and 86 mAh gâ1 at 5.5 and 11C, respectively, which is - to the best of our knowledge - the best high rate capability for all titanium-based sodium-ion anode materials reported so far. Setting the C rate to 5.5C (i.e., 1.85 A gâ1), such electrodes can be cycled for more than 1000 cycles without significant capacity decay, confirming their outstanding durability at such high specific current. These results, in combination with its environmental friendliness and cost efficiency, render anatase TiO2 nanoparticles a promising anode material for high power sodium-ion batteries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 251, 1 April 2014, Pages 379-385
Journal: Journal of Power Sources - Volume 251, 1 April 2014, Pages 379-385
نویسندگان
Liming Wu, Daniel Buchholz, Dominic Bresser, Luciana Gomes Chagas, Stefano Passerini,