LiNi0.5Mn0.5O2 hierarchical nanorods as high-capacity cathode materials for Li-ion batteries

被引：19
|
作者：
Yang, Jingang [1 ,2 ]
Guo, Biao [1 ]
He, Hong [1 ]
Li, Yuan [1 ]
Song, Chunlin [1 ]
Liu, Gang [1 ]
机构：
[1] Southwest Univ, Fac Mat & Energy, Chongqing 400715, Peoples R China
[2] Nankai Univ, Minist Educ, Key Lab Adv Energy Mat Chem, Tianjin 300071, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2017年 / 698卷
基金：
中国国家自然科学基金;
关键词：
LNMO-NRs; High-capacity; Cathode materials; Lithium-ion batteries; HIGH-RATE CAPABILITY; PERFORMANCE;
D O I：
10.1016/j.jallcom.2016.12.264
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：
LiNi0.5Mn0.5O2 nanorods (LNMO-NRs) stacked with nanoparticles have been prepared and investigated as cathode materials for rechargeable lithium-ion batteries. The LNMO NRs were obtained through solid-state Li and Ni implantation of alpha-MnO2 nanotubes. Without surface modification, the as synthesized LNMO NRs exhibited superior high-capacity compared to the bulk samples. An initial discharge capacity of 172 mAh g(-1) could be delivered at 0.2 C and about 88% capacity retention could be achieved after 100 cycles. The remarkable performance was attributed to the one-dimensional structure assembled with nanoparticles that shows fast Li-intercalation kinetics and high structural stability. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：714 / 718
页数：5
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