CoO-Co nanocomposite anode with enhanced electrochemical performance for lithium-ion batteries

被引：61
|
作者：
Qin, Youzhi [1 ]
Li, Qiang [1 ]
Xu, Jie [1 ]
Wang, Xia [1 ]
Zhao, Guoxia [1 ]
Liu, Changkun [1 ]
Yan, Xu [1 ]
Long, Yunze [1 ]
Yan, Shishen [2 ]
Li, Shandong [1 ]
机构：
[1] Qingdao Univ, Coll Phys Sci, Qingdao 266071, Peoples R China
[2] Shandong Univ, Sch Phys, Natl Key Lab Crystal Mat, Jinan 250100, Peoples R China
来源：
ELECTROCHIMICA ACTA | 2017年 / 224卷
基金：
中国博士后科学基金; 美国国家科学基金会; 中国国家自然科学基金;
关键词：
CoO-Co composite; Pulsed laser deposition; Lithium ion batteries; THIN-FILM ELECTRODE; COBALT OXIDE; STORAGE CAPACITY; NANOWIRE ARRAYS; RATE CAPABILITY; LI STORAGE; METAL; CARBON; CO3O4; NANOPARTICLES;
D O I：
10.1016/j.electacta.2016.12.040
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
COO-Co nanocomposite films were successfully deposited at room temperature by pulsed laser deposition as an anode material for lithium-ion batteries. The prepared nanocomposite exhibited enhanced performance, such as excellent cycling stability (830 mA hg(-1) at a specific current of 500 mAg(-1) after 200 cycles) and high rate capability (578 mA hg(-1) at 10,000 mAg(-1)). The outstanding electrochemical performance can be ascribed to the nanocrystalline structure of CoO and the presence of Co nanoparticles, which could sustain high strain, enhance reaction kinetics and improve conductivity. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：90 / 95
页数：6
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