کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7744408 1498223 2018 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Fabrication of N-doped carbon-coated Li4Ti5−xCoxO12 anode for lithium-ion batteries
موضوعات مرتبط
مهندسی و علوم پایه شیمی الکتروشیمی
پیش نمایش صفحه اول مقاله
Fabrication of N-doped carbon-coated Li4Ti5−xCoxO12 anode for lithium-ion batteries
چکیده انگلیسی
In this work, the Co2+-ion doping and N-doped carbon coating are adopted to improve the intrinsic and apparent electronic conductivities of Li4Ti5O12. This co-modified composite is fabricated through a ball-milling process followed by one-step solid-state reaction. XRD results demonstrate that the doped Co2+ does not destroy the spinel-type structure and it has successfully doped into the crystal structure of Li4Ti5O12. TEM images reveal that the surface of Li4Ti5-xCoxO12 particle is coated by a thin N-doped carbon layer with a thickness of 3-4 nm. Benefiting from the improved conductivity, the obtained composite displays an excellent rate capability and a stable cyclic property. Thus, the Co2+-ion doped and N-doped carbon-coated Li4Ti5O12 anode has great potential for the application of lithium-ion batteries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Solid State Ionics - Volume 320, July 2018, Pages 113-117
نویسندگان
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