Porous Na3V2(PO4)3@C nanoparticles enwrapped in three-dimensional graphene for high performance sodium-ion batteries

被引：116

作者：

Fang, Junqi ^{[1
]}

Wang, Suqing ^{[1
]}

Li, Zhitong ^{[1
]}

Chen, Hongbin ^{[1
]}

Xia, Lu ^{[1
]}

Ding, Liangxin ^{[1
]}

Wang, Haihui ^{[1
,2
]}

机构：

[1] S China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Guangdong, Peoples R China

[2] Univ Adelaide, Sch Chem Engn, Adelaide, SA 5005, Australia

来源：

JOURNAL OF MATERIALS CHEMISTRY A | 2016年 / 4卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

CARBON-COATED NA3V2(PO4)(3); CATHODE MATERIAL; ANODE MATERIAL; ELECTRODE MATERIAL; ENERGY-STORAGE; CAPACITY; NANOCOMPOSITES; NANOSPHERES; STABILITY; MATRIX;

D O I：

10.1039/c5ta08869k

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Porous Na3V2(PO4)(3)@ C nanocomposites enwrapped in a 3D graphene network were prepared using a simple freeze-drying-assisted thermal treatment method. The carbon layer and 3D graphene network provide not only a 3D conductive network but also a double restriction on the aggregation of Na3V2(PO4)(3) particles that have a high crystallinity under high temperature treatment. Due to the high electrochemical activity of the highly crystalline Na3V2(PO4)(3) nanoparticles and 3D conductive network, the novel NVP@C/Gmaterial displays a superior rate capability (76 mA h g(-1) at 60C) and ultra-long cyclability (82% capacity retention for 1500 cycles at 40C) when used in sodium-ion batteries.

引用

页码：1180 / 1185

页数：6

共 45 条

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