کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1290760 973335 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
The discharge properties of Na/Ni3S2 cell at ambient temperature
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
The discharge properties of Na/Ni3S2 cell at ambient temperature
چکیده انگلیسی

The discharge properties of a Na/Ni3S2 cell using 1 M NaCF3SO3 in tetra(ethylene glycol)dimethyl ether liquid electrolyte were investigated at room temperature. The products were characterized by X-ray diffraction, scanning electron microscopy and energy dispersive spectroscopy. Electrochemical properties of Na/Ni3S2 cells were also presented by cyclic voltammetry and the galvanostatic current method. Na/Ni3S2 cells have an initial discharge capacity of 420 mAh g−1 with a plateau potential at 0.94 V versus Na/Na+. After the first discharge, Ni3S2 and Na react at room temperature and then form sodium sulfide (Na2S) and nickel. Sodium ion can be partially deintercalated from Na2S charge reaction. The discharge process can be explained as follows: Ni3S2 + 4Na ↔ 3Ni + 2Na2S.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 178, Issue 2, 1 April 2008, Pages 852–856
نویسندگان
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