High-performance sodium-ion anodes enabled by a low-temperature molten salt approach

被引：8
|
作者：
Liu, Lei [1 ,2 ]
Sun, Jinmeng [1 ,2 ]
Du, Zhuzhu [1 ,2 ]
Wang, Ke [1 ,2 ]
Liu, Yuhang [1 ,2 ]
He, Song [1 ,2 ]
Du, Hongfang [1 ,2 ]
Ai, Wei [1 ,2 ]
Huang, Wei [1 ,2 ,3 ,4 ,5 ,6 ]
机构：
[1] Northwestern Polytech Univ, Frontiers Sci Ctr Flexible Elect FSCFE, Shaanxi Inst Flexible Elect SIFE, 127 West Youyi Rd, Xian 710072, Peoples R China
[2] Northwestern Polytech Univ, Shaanxi Inst Biomed Mat & Engn SIBME, 127 West Youyi Rd, Xian 710072, Peoples R China
[3] Nanjing Tech Univ NanjingTech, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Key Lab Flexible Elect KLOFE, 30 South Puzhu Rd, Nanjing 211816, Peoples R China
[4] Nanjing Tech Univ NanjingTech, Jiangsu Natl Synerget Innovat Ctr Adv Mat SICAM, Inst Adv Mat IAM, 30 South Puzhu Rd, Nanjing 211816, Peoples R China
[5] Nanjing Univ Posts & Telecommun, Key Lab Organ Elect & Informat Displays KLOEID, Nanjing 210023, Jiangsu, Peoples R China
[6] Nanjing Univ Posts & Telecommun, Inst Adv Mat IAM, SICAM, Nanjing 210023, Jiangsu, Peoples R China
来源：
CHEMICAL COMMUNICATIONS | 2020年 / 56卷 / 77期
基金：
中国国家自然科学基金; 国家自然科学基金国际合作与交流项目;
关键词：
DOPED GRAPHENE; LI-ION; NITROGEN; CARBON; REDUCTION; BATTERIES; ELECTRODE;
D O I：
10.1039/d0cc04112b
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A low-temperature doping approach has been developed for fabricating nitrogen and sulfur co-doped few-layer graphene (NS-FLG) by annealing graphene oxide in KSCN molten salt at 175 degrees C. The as-prepared NS-FLG with a high doping level and unique few-layer structure delivers remarkable performance for sodium-ion batteries (SIBs) in terms of a high reversible capacity of 325.4 mA h g(-1)at 0.5 A g(-1), a superb rate capacity of 203.6 mA h g(-1)at 10 A g(-1), and ultra-long cyclability over 5100 cycles. This work provides a new avenue for exploring advanced graphene-based materials towards SIBs and even other electrochemical fields.
引用
收藏
页码：11422 / 11425
页数：4
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