Reduced graphene-oxide/highly ordered mesoporous SiOx hybrid material as an anode material for lithium ion batteries

被引：51

作者：

Liu, Dan ^{[1
,2
]}

Chen, Congrui ^{[1
]}

Hu, Yanyan ^{[1
]}

Wu, Jorryn ^{[2
]}

Zheng, Dong ^{[2
]}

Xie, Zhi-zhong ^{[1
]}

Wang, Gongwei ^{[2
]}

Qu, Deyang ^{[2
]}

Li, Junsheng ^{[1
]}

Qu, Deyu ^{[1
]}

机构：

[1] Wuhan Univ Technol, Sch Chem Chem Engn & Life Sci, Dept Chem, 122 Luoshi Rd, Wuhan 430070, Hubei, Peoples R China

[2] Univ Wisconsin, Coll Engn & Appl Sci, Dept Mech Engn, 3200N Cramer St, Milwaukee, WI 53211 USA

来源：

ELECTROCHIMICA ACTA | 2018年 / 273卷

关键词：

Silicon oxide; Reduced graphene oxide; Meso-porous structure; Hybrid material; Anode material for LIBs; BINDER-FREE ANODE; HIGH-PERFORMANCE; DOPED CARBON; STORAGE PERFORMANCE; OXIDE; COMPOSITE; NANOCOMPOSITE; REDUCTION; SILICON; NETWORK;

D O I：

10.1016/j.electacta.2018.04.030

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

rGO wrapped SiOx with ordered meso-porous structure material is fabricated via a facile route. This meso-porous SiOx/rGO composite, used as anode in LIBs, exhibits a reversible capacity of 580 mAh g(-1) under the applied current density of 100 mAg(-1) up to 200 cycles. And it still can deliver a reversible capacity of 120 mAh g(-1) even at 10,000 mA g(-1) rate. The high cyclic stability and superior rate performance is attributed to the graphene layer as well as the inert products formed in the reduction of SiOx, which can buffer the volume expansion elastically, thus preserve the integrity of the electrode. Moreover, the ordered meso-porous structure can provide high specific surface area, sufficient void space to shorten the pathway of Li ions, improve the electrolyte penetration and enhanced the electrochemical Li ion storage. (c) 2018 Elsevier Ltd. All rights reserved.

引用

页码：26 / 33

页数：8

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