کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1294351 973610 2009 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Nano-NiOOH prepared by splitting method as super high-speed charge/discharge cathode material for rechargeable alkaline batteries
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Nano-NiOOH prepared by splitting method as super high-speed charge/discharge cathode material for rechargeable alkaline batteries
چکیده انگلیسی

The present paper introduces a new method to prepare nano-NiOOH by oxidizing and cracking spherical Ni(OH)2 of nano-structure in NaClO–NaOH solution. The prepared samples were characterized by X-ray powder diffraction (XRD), field emission scan electronic microscope (FESEM) and transmission electron microscopy (TEM). Results indicate that the synthesized sample is nano-NiOOH rod of 60–150 nm in width. The charge/discharge tests show that the nano-NiOOH cathode shows good cycling reversibility at high current density of 10,000 mA g−1, provides a high capacity of 276 mAh g−1 and reduces the charge time to as short as 1.83 min. Furthermore, the nano-NiOOH still keeps a reversible capacity of 93.7% after 120 cycles at a super high charge/discharge current of 10,000 mA g−1, showing a good charge/discharge property.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 188, Issue 1, 1 March 2009, Pages 308–312
نویسندگان
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