Three-dimensional porous carbon-coated graphene composite as high-stable and long-life anode for sodium-ion batteries

Zhou, Dan1; Liu, Yongchang1; Song, Wei-Li1; Li, Xiaogang1; Fan, Li-Zhen1; Deng, Yonghong2

2017-05-15

10.1016/j.cej.2017.02.008

CHEMICAL ENGINEERING JOURNAL   影响因子和分区

1385-8947

1873-3212

Sodium-ion batteries (SIBs) have been investigated as promising alternatives to lithium-ion batteries (LIBs) because of the rich sodium natural resource. Exploring suitable electrode materials is still a great challenge for the practical applications of SIBs. Herein, we demonstrate a novel three-dimensional porous carbon-coated graphene (3D PG@C) anode for SIBs using silica as the porous template combined with a subsequent polyaniline (PANI)-converted carbon coating. The synthesis process mainly consists of deposition of SiO2 nanoparticles on graphene surface, in situ polymerization of aniline monomers and carbonization of PANI and etching of SiO2. The resultant 3D PG@C composite possesses high electrical conductivity, rapid ion insertion, sufficient active sites, short ionic diffusion distance and stable structural integrity for efficient Na-storage. As an anode material for SIBs, the 3D PG@C composite delivers excellent Na-storage performance, in terms of high initial discharge capacity (824 mAh g(-1) at 50 mA g(-1)), large reversible capacity and long cyclability (323 mAh g(-1) after 1000 cycles at 1000 mA g(-1)) and remarkable rate capability (207 mAh g(-1) at 10000 mA g(-1)). The design strategy reported in this work would provide a promising approach toward high-stable and long-life carbonaceous anode materials for SIBs. (C) 2017 Elsevier B.V. All rights reserved.

Sodium-ion batteries Anode Carbon-coated graphene Long cyclability

SCI ; EI

英语

通讯

National Basic Research Program of China[2015CB932500] ; National Basic Research Program of China[2013CB934001]

Engineering

Engineering, Environmental ; Engineering, Chemical

WOS:000398985200067

ELSEVIER SCIENCE SA

20170703351161

Anodes ; Carbonization ; Graphene ; Lithium-ion batteries ; Metal ions ; Polyaniline ; Porous materials ; Silica

Metallurgy:531.1 ; Conducting Materials:708.2 ; Electron Tubes:714.1 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Products Generally:804 ; Materials Science:951

ENGINEERING

Web of Science

1.Univ Sci & Technol Beijing, Inst Adv Mat & Technol, Key Lab New Energy Mat & Technol, Beijing 100083, Peoples R China
2.South Univ Sci & Technol China, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China

Zhou, Dan,Liu, Yongchang,Song, Wei-Li,et al. Three-dimensional porous carbon-coated graphene composite as high-stable and long-life anode for sodium-ion batteries[J]. CHEMICAL ENGINEERING JOURNAL,2017,316:645-654.

Zhou, Dan,Liu, Yongchang,Song, Wei-Li,Li, Xiaogang,Fan, Li-Zhen,&Deng, Yonghong.(2017).Three-dimensional porous carbon-coated graphene composite as high-stable and long-life anode for sodium-ion batteries.CHEMICAL ENGINEERING JOURNAL,316,645-654.

Zhou, Dan,et al."Three-dimensional porous carbon-coated graphene composite as high-stable and long-life anode for sodium-ion batteries".CHEMICAL ENGINEERING JOURNAL 316(2017):645-654.