کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8013688 | 1517169 | 2018 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
CNT-intercalated rGO/sulfur laminated structure for high-rate and long-life lithium-sulfur batteries
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: CNT-intercalated rGO/sulfur laminated structure for high-rate and long-life lithium-sulfur batteries CNT-intercalated rGO/sulfur laminated structure for high-rate and long-life lithium-sulfur batteries](/preview/png/8013688.png)
چکیده انگلیسی
Lithium-sulfur (Li-S) batteries represent one of the next-generation Li-ion batteries. However, the poor conductivity and large volumetric expansion of sulfur result in low rate performance and unfavorable cycle stability. Herein, a laminated structure of sulfur/reduced graphene oxide intercalated by carbon nanotube (CNT-rGO/S) composites was designed and fabricated for the first time to address the issue. The composites prepared via hydrothermal coprecipitation was endowed a perfect crystal and highly integrated structure, which retained a good electrical conductivity and accommodated the sulfur volume expansion due to the sufficient free space between the CNT-intercalated graphene layers. The CNT-rGO/S cathode exhibits a good capacity of 783.3â¯mAhâ¯gâ1 at 0.5â¯C and a desirable cycling stability with 77.2% of the capacity remaining after 1000 cycles even at a rate as high as 5â¯C, which offers great potential for practical applications in Li-S batteries.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Letters - Volume 219, 15 May 2018, Pages 68-71
Journal: Materials Letters - Volume 219, 15 May 2018, Pages 68-71
نویسندگان
Jingjing Yuan, Xiaoke Zheng, Ling Jiang, Dachuan Yao, Guangyu He, Haiqun Chen, Jianfei Che,