Ultramicroporous Carbon through an Activation-Free Approach for Li-S and Na-S Batteries in Carbonate-Based Electrolyte

被引：64
作者：
Hu, Lei [1 ,2 ]
Lu, Yue [1 ,2 ]
Zhang, Tianwen [1 ,2 ]
Huang, Tao [1 ,2 ]
Zhu, Yongchun [1 ,2 ]
Qian, Yitai [1 ,2 ,3 ]
机构：
[1] Univ Sci & Technol China, Hefei Natl Lab Phys Sci Microscale, Hefei 230026, Anhui, Peoples R China
[2] Univ Sci & Technol China, Dept Chem, Hefei 230026, Anhui, Peoples R China
[3] Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Peoples R China
来源：
ACS APPLIED MATERIALS & INTERFACES | 2017年 / 9卷 / 16期
关键词：
lithium-sulfur batteries; sodium-sulfur batteries; carbonate-based electrolyte; ultramicroporous carbon; activation free-approach; metal-sulfur batteries; LITHIUM-SULFUR BATTERIES; ELECTROCHEMICAL PERFORMANCE; TEMPERATURE; SUPERCAPACITORS; CAPACITANCE; CATHODE;
D O I：
10.1021/acsami.7b01387
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
We report an activation-free approach for fabricating ultramicroporous carbon as an accommodation of sulfur molecules for Li-S and Na-S batteries applications in carbonate-based electrolyte. Because of the high specific surface area of 967 m(2) g(-1), as well as 51.8% of the pore volume is contributed by ultramicropore with pore size less than 0.7 nm, sulfur cathode exhibits superior electrochemical behavior in carbonate-based electrolyte with a capacity of 507.9 mA h g(-1) after 500 cycles at 2 C in Li-S batteries and 392 mA. h g(-1) after 200 cycles at 1 C in Na-S batteries, respectively.
引用
收藏
页码：13813 / 13818
页数：7
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