K-doped Li3V2(PO4)3: A novel cathode material for high performance lithium-ion batteries

被引：17
|
作者：
Jiang, Ling
Fu, Chaopeng
Li, Kaiqi
Zhou, Haihui [1 ]
Huang, Yanping
Kuang, Yafei [1 ]
机构：
[1] Hunan Univ, Coll Chem & Chem Engn, Changsha 410082, Hunan, Peoples R China
来源：
MATERIALS LETTERS | 2017年 / 198卷
基金：
中国国家自然科学基金;
关键词：
Potassium ion doping; Li3V2(PO4)(3); Cathode material; Lithium-ion battery; ELECTROCHEMICAL PERFORMANCE; NANOCOMPOSITE;
D O I：
10.1016/j.matlet.2017.04.014
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The K-doped Li3V2(PO4)(3) cathode material with nanorod structure is prepared for the first time by a facile sol-gel method in combination with traditional calcination. The K-doped Li3V2(PO4)(3) delivers a discharge capacity of 140 mAh g(-1), remaining nearly invariable, when the rate increases from 0.1 C to 2 C. After 200 cycles at 1 C, the discharge capacity fading is nearly negligible. In contrast to the pristine Li3V2(PO4)(3), the K-doped Li3V2(PO4)(3) cathode demonstrates significantly enhanced electrochemical performance for lithium-ion batteries. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码：73 / 75
页数：3
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