Three-dimensional sponge-like architectured cupric oxides as high-power and long-life anode material for lithium rechargeable batteries

被引：25
作者：
Choi, Chung Seok [1 ]
Park, Young-Uk [2 ]
Kim, Hyungsub [1 ]
Kim, Na Rae [1 ]
Kang, Kisuk [2 ]
Lee, Hyuck Mo [1 ]
机构：
[1] Korea Adv Inst Sci & Technol, Dept Mat Sci & Engn, Taejon 305701, South Korea
[2] Seoul Natl Univ, Dept Mat Sci & Engn, Seoul 151742, South Korea
来源：
ELECTROCHIMICA ACTA | 2012年 / 70卷
基金：
新加坡国家研究基金会;
关键词：
Li-ion battery; Cupric oxide; Nanoparticle; Long-life anodes; Three-dimensional sponge structure; ION BATTERIES; HIGH-CAPACITY; CUO; ELECTRODES; HOLLOW; CO3O4; PERFORMANCE; FABRICATION; PARTICLES; INSERTION;
D O I：
10.1016/j.electacta.2012.03.037
中图分类号：
O646 [电化学、电解、磁化学];
学科分类号：
081704 ;
摘要：
Cupric oxide (CuO) nanoparticles (NPs) with three-dimensional (3D) sponge structure are obtained through the sintering of Cu NPs at 360 degrees C. Their morphology is analyzed by transmission electron microscopy (TEM) and scanning electron microscopy (SEM), and their crystal structure is checked by X-ray diffraction. CuO NPs have a 3D porous structure. The NPs are assembled to form larger secondary particles with many empty spaces among them, and they have a CuO phase after the heat treatment. CuO NPs with this novel architecture exhibit good electrochemical performance as anode material. The anode material with a sponge-like structure is prepared at 360 degrees C, as the Li-ion battery exhibits a high electrochemical capacity of 674 mAhg(-1). When the sample is sintered at 360 degrees C, the charge/discharge capacities increase gradually and cycle up to 50 cycles at a C/10 rate, exhibiting excellent rate capability compared with earlier reported CuO/CuO-composite anodes. Electrochemical impedance spectroscopy (EIS) measurements suggest that the superior electrical conductivity of the sample sintered at 360 degrees C is the main factor responsible for the improved power capability. Crown Copyright (C) 2012 Published by Elsevier Ltd. All rights reserved.
引用
收藏
页码：98 / 104
页数：7
相关论文
共 30 条
[1]   Room temperature growth of CuO nanorod arrays on copper and their application as a cathode in dye-sensitized solar cells [J].
Anandan, S ;
Wen, XG ;
Yang, SH .
MATERIALS CHEMISTRY AND PHYSICS, 2005, 93 (01) :35-40
[2]   Nanostructured materials for advanced energy conversion and storage devices [J].
Aricò, AS ;
Bruce, P ;
Scrosati, B ;
Tarascon, JM ;
Van Schalkwijk, W .
NATURE MATERIALS, 2005, 4 (05) :366-377
[3]   Building better batteries [J].
Armand, M. ;
Tarascon, J. -M. .
NATURE, 2008, 451 (7179) :652-657
[4]   Nanomaterials for rechargeable lithium batteries [J].
Bruce, Peter G. ;
Scrosati, Bruno ;
Tarascon, Jean-Marie .
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (16) :2930-2946
[5]   High capacity Li ion battery anodes using Ge nanowires [J].
Chan, Candace K. ;
Zhang, Xiao Feng ;
Cui, Yi .
NANO LETTERS, 2008, 8 (01) :307-309
[6]   MECHANISMS FOR LITHIUM INSERTION IN CARBONACEOUS MATERIALS [J].
DAHN, JR ;
ZHENG, T ;
LIU, YH ;
XUE, JS .
SCIENCE, 1995, 270 (5236) :590-593
[7]  
Débart A, 2001, J ELECTROCHEM SOC, V148, pA1266, DOI 10.1149/1.1409971
[8]   Incorporation of homogeneous, nanoscale MnO2 within ultraporous carbon structures via self-limiting electroless deposition:: Implications for electrochemical capacitors [J].
Fischer, Anne E. ;
Pettigrew, Katherine A. ;
Rolison, Debra R. ;
Stroud, Rhonda M. ;
Long, Jeffrey W. .
NANO LETTERS, 2007, 7 (02) :281-286
[9]   Controlling the thickness of the surface oxide layer on Cu nanoparticles for the fabrication of conductive structures by ink-jet printing [J].
Jeong, Sunho ;
Woo, Kyoohee ;
Kim, Dongjo ;
Lim, Soonkwon ;
Kim, Jang Sub ;
Shin, Hyunjung ;
Xia, Younan ;
Moon, Jooho .
ADVANCED FUNCTIONAL MATERIALS, 2008, 18 (05) :679-686
[10]   Synthesis and Performance of CuO with Complex Hollow Structure as Anode Material for Lithium Secondary Batteries [J].
Ju, Jeong-Hun ;
Ryu, Kwang-Sun .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2011, 158 (07) :A814-A817
123