کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1294827 | 973638 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Nickel oxyhydroxide/manganese dioxide composite as a candidate electrode material for alkaline secondary cells
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
الکتروشیمی
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Nickel hydroxide and manganese dioxide are used in alkaline cells as positive electrode materials. Positive electrodes comprising a nickel oxyhydroxide/manganese dioxide composite, with modification by Bi2O3, deliver a combined reversible discharge capacity of 2.25e per metal atom (650 mAh g−1 metal content), which is higher than that realized from electrodes of either component taken singly. The composite discharges with two potential plateaux, the first appearing at 325 mV corresponds to the discharge of the nickel component, whereas the second at −600 mV is due to the manganese component. Composites of NiO(OH)/MnO2 can be used as a new electrode material with higher discharge capacity than conventional electrodes.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Power Sources - Volume 175, Issue 1, 3 January 2008, Pages 625–629
Journal: Journal of Power Sources - Volume 175, Issue 1, 3 January 2008, Pages 625–629
نویسندگان
T.N. Ramesh, P. Vishnu Kamath,