کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7746147 1498280 2014 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characterization of Prussian blue as positive electrode materials for sodium-ion batteries
ترجمه فارسی عنوان
شناسایی پروسی آبی به عنوان مواد الکترودهای مثبت برای باتری های سدیم یون
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
چکیده انگلیسی
Prussian blue, KxFey[Fe(CN)6]z/nH2O, was investigated as a positive electrode material for sodium-ion batteries. A Na cell with a Prussian blue positive electrode exhibited a first discharge capacity of 57 mAh/g. However, the discharge capacity rapidly decreased. It appears that the lattice parameter of Prussian blue changes and electron conductivity is gradually lost. Then, we attempted to improve the cycle performance of the cell with a positive electrode using high conductivity carbon, ketjen black EC600JD. As a result, a positive electrode of Prussian blue and ketjen black exhibited a first discharge capacity of 67 mAh/g and exhibited a retention of more than 80% at the 40th cycle. Moreover, the positive electrode was improved owing to dehydration caused by the thermal treatment of the Prussian blue. Prussian blue showed a reversible Na+ intercalation potential around 2.5 V vs. Na, which corresponds to the redox of Fe2 +/Fe3 +.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 262, 1 September 2014, Pages 216-219
نویسندگان
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