Porous NiO/graphene hybrid film as anode for lithium ion batteries

被引：18
|
作者：
Huang, X. H. [1 ,2 ]
Zhang, P. [1 ]
Wu, J. B. [1 ]
Lin, Y. [1 ]
Guo, R. Q. [1 ]
机构：
[1] Taizhou Univ, Coll Phys & Elect Engn, Taizhou 318000, Peoples R China
[2] Zhejiang Univ, Key Lab Adv Mat & Applicat Batteries Zhejiang Pro, Hangzhou 310027, Zhejiang, Peoples R China
来源：
MATERIALS LETTERS | 2015年 / 153卷
基金：
中国国家自然科学基金;
关键词：
NiO; Graphene; Porous materials; Energy storage and conversion; Lithium ion battery; HIGH-CAPACITY; GRAPHENE; PERFORMANCE; NANOSHEETS; ELECTRODE; COPPER;
D O I：
10.1016/j.matlet.2015.04.016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Porous NiO/graphene hybrid film is prepared by a combination of chemical bath deposition and a graphene spin-coating. The material is characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The film has a porous structure, and it is covered by graphene sheets. The electrochemical performance as anode materials for lithium ion batteries is investigated by galvanostatic charge-discharge cycle and cyclic voltammetry. The hybrid film that contains 8 wt% of graphene exhibits an initial charge capacity of 885 mA h g(-1) and an initial coulombic efficiency of 85%, and its cycling performance is enhanced significantly compared with that of bare NiO film. It is believed that the porous structure and the covering of graphene play important roles in the electrochemical performance. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：102 / 105
页数：4
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