Li3V2(PO4)3/C composite with hollow coaxial structure for high-capacity and high-rate performance in lithium-ion batteries

被引：10
|
作者：
Li, Yonghai [1 ]
Xiang, Kaixiong [1 ]
Zhou, Wei [1 ]
Zhu, Yirong [1 ]
Xiao, Li [1 ]
Chen, Xianhong [1 ]
Chen, Han [1 ]
机构：
[1] Hunan Univ Technol, Sch Met & Mat Engn, Zhuzhou 412007, Hunan, Peoples R China
来源：
MATERIALS LETTERS | 2018年 / 216卷
关键词：
Composite materials; Lithium-ion batteries; Cotton fibers; Hollow coaxial structure; Cathode materials; CATHODE MATERIAL; ANODE;
D O I：
10.1016/j.matlet.2017.12.136
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The Li3V2(PO4)(3)/C composite with hollow coaxial structure has been successfully synthesized via a facile repeated immersion method induced by cotton fibers. The morphologies, structures and properties are investigated by X-ray diffractometer, scanning electron microscopy and galvanostatic charge-discharge tests. Li3V2(PO4)(3)/C composite displays a unique hollow coaxial structure constructed by hollow carbon fibers filled with Li3V2(PO4)(3)/C particles inside and coated by Li3V2(PO4)(3)/C layer outside. Li3V2(PO4)(3)/C composite exhibits good rate performance with a specific capacity of 115.7 mAh g(-1) at 15 C rate between 3.0 and 4.3 V. The improved properties can be attributed to the formation for hollow coaxial structure. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：46 / 49
页数：4
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