Pulsed laser deposited Cr2O3 nanostructured thin film on graphene as anode material for lithium-ion batteries

被引：46

作者：

Khamlich, S. ^{[1
,2
]}

Nuru, Z. Y. ^{[1
,2
]}

Bello, A. ^{[3
]}

Fabiane, M. ^{[3
]}

Dangbegnon, J. K. ^{[3
]}

Manyala, N. ^{[3
]}

Maaza, M. ^{[1
,2
]}

机构：

[1] Univ S Africa, Coll Grad Studies, UNESCO UNISA Africa Chair Nanosci Nanotechnol, ZA-0001 Pretoria, South Africa

[2] iThemba LABS Natl Res Fdn, Nanosci African Network NANOAFNET, Somerset West, Western Cape Pr, South Africa

[3] Univ Pretoria, Dept Phys, SARChI Chair Carbon Technol & Mat, Inst Appl Mat, Pretoria, South Africa

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2015年 / 637卷

基金：

新加坡国家研究基金会;

关键词：

Chromium (III) oxide; Anode; Graphene; Lithium-ion batteries; NEGATIVE-ELECTRODE MATERIALS; ELECTROCHEMICAL PERFORMANCES; CURRENT COLLECTOR; MESOPOROUS CR2O3; NI FOAM; CO3O4; COMPOSITE; NANOSHEETS; CARBON; NANOPARTICLES;

D O I：

10.1016/j.jallcom.2015.02.155

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：

Pulsed laser deposition technique was used to deposit Cr2O3 nanostructured thin film on a chemical vapor deposited few-layer graphene (FLG) on nickel (Ni) substrate for application as anode material for lithium-ion batteries. The experimental results show that graphene can effectively enhance the electrochemical property of Cr2O3. For Cr2O3 thin film deposited on Ni (Cr2O3/Ni), a discharge capacity of 747.8 mA h g(-1) can be delivered during the first lithiation process. After growing Cr2O3 thin film on FLG/Ni, the initial discharge capacity of Cr2O3/FLG/Ni was improved to 1234.5 mA h g(-1). The reversible lithium storage capacity of the as-grown material is 692.2 mA h g(-1) after 100 cycles, which is much higher than that of Cr2O3/Ni (111.3 mA h g(-1)). This study reveals the differences between the two material systems and emphasizes the role of the graphene layers in improving the electrochemical stability of the Cr2O3 nanostructured thin film. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：219 / 225

页数：7

共 47 条

[1] Towards new negative electrode materials for Li-ion batteries:: Electrochemical properties of LiNiN [J].