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

页码：11422 / 11425

页数：4

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