کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1487092 1510696 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Porous CoFe2O4 nanowire arrays on carbon cloth as binder-free anodes for flexible lithium-ion batteries
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Porous CoFe2O4 nanowire arrays on carbon cloth as binder-free anodes for flexible lithium-ion batteries
چکیده انگلیسی


• Hierarchal CoFe2O4 nanowire arrays are directly grown on flexible carbon cloth.
• Porous CoFe2O4 nanowires are composed of many nanocrystals of 20–40 nm.
• CoFe2O4 nanowire arrays exhibit excellent rate capability and cycling stability.
• Integrated CoFe2O4/carbon cloth electrodes show high flexibility and areal capacity.

A three-dimensional CoFe2O4 nanowire array on carbon cloth was fabricated with a hydrothermal method together with a post-annealing treatment. As a binder-free and flexible anode material for LIBs, it showed an improved electrochemical performance with high cycling stability and excellent rate capability. It exhibited an initial discharge capacity of 1615 mAh g−1 and retained a reversible capacity of about 1204 mAh g−1 after 200 cycles at a specific current of 500 mA g−1. The high capacity, outstanding rate performance and cycling stability can be attributed to the special configuration of hierarchal porous CoFe2O4 nanowires on carbon cloth, which possess many advantages like short diffusion length, easy strain relaxation and fast electron transport. Moreover, the integrated CoFe2O4 nanowires/carbon cloth electrode shows high flexibility and high areal capacity (2.41 mAh cm−2), which makes it suitable for use as a binder-free anode to build flexible LIBs.

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ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Research Bulletin - Volume 79, July 2016, Pages 22–28
نویسندگان
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