کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1665477 1518046 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Stable cyclic performance of nickel oxide-carbon composite anode for lithium-ion batteries
ترجمه فارسی عنوان
عملکرد سیکل پایدار از آند نیکل اکسید کربن کامپوزیت برای باتری های لیتیوم یون
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی
Nickel oxide (NiO) directly grown on nickel foam is regarded as a promising lithium ion battery anode material which shows good cyclic and rate performances with a theoretical specific capacity of 718 mA h g− 1. In this study, we demonstrated a carbon-incorporated NiO anode (NiO-C) with a capacity per unit area of 2.11 mA h cm− 2 and 1.76 mA h cm− 2 at 0.2 C and 0.5 C rates, respectively, fabricated by thermal oxidation of carbon coated nickel foam. The specific capacity of our NiO-C composite samples at 0.5 C rate is found to be typically 389.16 mA h g− 1, with a stable cyclic performance up to more than 100 cycles. This remarkable performance is apparently superior to the control samples of pure NiO samples. The improved performance is contributed to carbon incorporation which serves as a fluent channel for electrons and a flexible network preventing NiO nanostructures from structural deformation during charge and discharge processes. The advantage of using our approach is the easy preparation of the NiO-C composite using a simple two-step process: chemical vapor deposition of ethanol and annealing in air.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 558, 2 May 2014, Pages 356-364
نویسندگان
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