کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7886375 | 1509786 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
FeS@onion-like carbon nanocapsules embedded in amorphous carbon for the lithium ion batteries with excellent cycling stability
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The development of lithium ion battery with long-term cycle stability is considered to be a prerequisite for commercialization. Onion-like carbon coated FeS nanocapsules embedded in amorphous carbon (FeS@OLC/a-C) is designed and one-step developed via discharging the Fe-C composite ingot under the atmosphere of Ar and H2S. In FeS@OLC/a-C nanocomposites, ~ 8.9â¯nm FeS@OLC nanocapsules with an average onion-like shell of 2â¯nm are covered by the amorphous carbon. The formation mechanism has been proposed for FeS@OLC/a-C nanocomposites. As the lithium ion battery anode candidate, FeS@OLC/a-C nanocomposite electrode have the advantages of good cycling stability (719.2 mAh gâ1 after being cycled at 0.1â¯Aâ¯gâ1 for 200 times) and excellent high-rate performances (569.3 mAh gâ1 for 2â¯Aâ¯gâ1, 540.9 mAh gâ1 for 4â¯Aâ¯gâ1, 466.6 mAh gâ1 for 8â¯Aâ¯gâ1 and 340.0 mAh gâ1 for 16â¯Aâ¯gâ1), which originates from the combined effect of small FeS nanoparticles, the onion-like carbon layers and amorphous carbon. The design idea in this paper provides a new approach for improving the cycling stability and rate capability of lithium ion battery.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ceramics International - Volume 44, Issue 12, 15 August 2018, Pages 13654-13661
Journal: Ceramics International - Volume 44, Issue 12, 15 August 2018, Pages 13654-13661
نویسندگان
Xianguo Liu, Yunyi Wu, Xiaolong Li, Jieyi Yu, Yuping Sun,