کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1613137 1516311 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Scalable synthesis of Fe3O4/C composites with enhanced electrochemical performance as anode materials for lithium-ion batteries
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
Scalable synthesis of Fe3O4/C composites with enhanced electrochemical performance as anode materials for lithium-ion batteries
چکیده انگلیسی
A facile and scalable process for synthesizing Fe3O4/C composites via a solution combustion technique followed by carbon-coating annealing treatment is developed. The as-prepared Fe3O4/C sample containing about 13.9 wt% carbon displays an attractive cycling performance up to 100 cycles (∼470 mA h g−1 retained at 100 mA g−1). In addition, the Fe3O4/C electrode shows good rate capability, a capacity of 530 mA h g−1 at 92.4 mA g−1 is still recoverable and sustainable up to 60 cycles after charge/discharge process at high rates. The enhanced electrochemical performance can be attributed to the improved electron transport from the consecutive carbon layer and Li+ diffusion due to the nanoscale nature of the Fe3O4 active materials. The present work represents a successful example of solution combustion technique combined with carbon-coating annealing process for preparing iron oxide-based electrodes in large scale, which can also be extended to prepare other metal oxide/carbon composites.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Alloys and Compounds - Volume 582, 5 January 2014, Pages 563-568
نویسندگان
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