کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6612785 | 459590 | 2014 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
High capacity and low cost spinel Fe3O4 for the Na-ion battery negative electrode materials
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The iron-containing electrode material is a promising candidate for low-cost Na-ion batteries. In this work, the electrochemical properties of Fe3O4 nanoparticles obtained by simple hydrothermal reaction are investigated as an anode material for Na-ion batteries. The Fe3O4 with alginate binder delivers a reversible capacity of 248 mAh gâ1 after 50 cycles at a current density of 83 mA gâ1 (0.1C), while the electrode using polyvinylidene fluoride binder shows a gradually capacity fading to 79 mAh gâ1 after 50 cycles. The high electrochemical performance can be ascribed to both the nano size of Fe3O4 and excellent binding ability of alginate binder which can buffer large volume change. The mechanism of conversion reaction for Fe3O4 is also tracked by combining electrochemical impedance spectroscopy analysis and magnetization measurement after electrochemical cycling. Finally, the Na-ion full cell consisting of the Fe3O4-alginate anode and the Na3V2(PO4)3/graphene cathode is assembled to demonstrate performance of the Fe3O4 anode for Na-ion batteries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Electrochimica Acta - Volume 146, 10 November 2014, Pages 503-510
Journal: Electrochimica Acta - Volume 146, 10 November 2014, Pages 503-510
نویسندگان
P. Ramesh Kumar, Young Hwa Jung, K. Kamala Bharathi, Chek Hai Lim, Do Kyung Kim,