Nanorod-assembled spinel Li1 05Mn1 95O4 rods with a central tunnel along the rod-axis for high rate capability of rechargeable lithium-ion batteries

被引：5

作者：

Ahn, Docheon ^{[2
,3
]}

Gim, Jihyeon ^{[1
]}

Shin, Namsoo ^{[2
]}

Koo, Yang-Mo ^{[3
,4
]}

Kim, Jaekook ^{[1
]}

Shin, Tae Joo ^{[2
]}

机构：

[1] Chonnam Natl Univ, Dept Mat Sci & Engn, Kwangju 500757, South Korea

[2] Pohang Accelerator Lab, Pohang 790784, South Korea

[3] POSTECH, Dept Mat Sci & Engn, Pohang 790784, South Korea

[4] POSTECH, Grad Inst Ferrous Technol, Pohang 790784, South Korea

来源：

ELECTROCHIMICA ACTA | 2010年 / 55卷 / 28期

关键词：

Nanorod assembled spinel Li1 05Mn1 95O4; Synchrotron powder X-ray diffraction; Rate capability; Central-tunneled morphology; Rechargeable lithium ion batteries; CATHODE MATERIALS; LIMN2O4; NANORODS; MANGANESE OXIDE; MNO2; NANOPARTICLES; NANOMATERIALS; PERFORMANCE; NANOWIRES; BEHAVIOR; SIZE;

D O I：

10.1016/j.electacta.2010.08.015

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

Nanorod-assembled spinel Li1 05Mn1 95O4 rods with a central tunnel along the rod-axis were synthesized using highly crystalline beta-MnO2 rods as self-templates The synthesized spinel Li1 05Mn1 95O4 is an assembly of several single crystal-like nanorods with an average diameter and length of 100 and 400 nm respectively which was determined by microstructural Rietveld refinement using the synchrotron powder XRD data Galvanostatic battery testing showed that central-tunneled and nanorod-assembled Li1 05Mn1 95O4 rods have a high charge storage capacity at high current densities in comparison with those of the simnel rods without a tunnel structure and commercial powders Moreover a capacity retention value of 81% was observed at the end of 100 cycles at a current of 250 mAh g(-1) (C) 2010 Elsevier Ltd All rights reserved

引用

页码：8888 / 8893

页数：6

共 35 条

[1] Preparation and electrochemical investigation of LiMn2-xMexO4 (Me:Ni, Fe, and x=0.5, 1) cathode materials for secondary lithium batteries [J].

Amine, K ;

Tukamoto, H ;

Yasuda, H ;

Fujita, Y .

JOURNAL OF POWER SOURCES, 1997, 68 (02) :604-608

[2]

[Anonymous], 2001, J RODRIGUEZ CARVAJAL, V26, P12

[3]

[Anonymous], CHEM EUR J

[4] 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

[5] Lithium aluminum manganese oxide having spinel-framework structure for long-life lithium-ion batteries [J].

Ariyoshi, Kingo ;

Iwata, Eiichi ;

Kuniyoshi, Minoru ;

Wakabayashi, Hiromichi ;

Ohzuku, Tsutomu .

ELECTROCHEMICAL AND SOLID STATE LETTERS, 2006, 9 (12) :A557-A560

[6] Characterization and long-term performance of polyaniline-based electrochemical capacitors [J].

Bélanger, D ;

Ren, XM ;

Davey, J ;

Uribe, F ;

Gottesfeld, S .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2000, 147 (08) :2923-2929

[7] Nanomaterials for rechargeable lithium batteries [J].

Bruce, Peter G. ;

Scrosati, Bruno ;

Tarascon, Jean-Marie .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2008, 47 (16) :2930-2946

[8]

Carvajal J.R., 1990, ABSTR SATELL MEET PO, P127

[9] Microstructural analysis of nickel hydroxide:: Anisotropic size versus stacking faults [J].

Casas-Cabanas, M ;

Palacín, MR ;

Rodríguez-Carvajal, J .

POWDER DIFFRACTION, 2005, 20 (04) :334-344

[10] Microstructural characterisation of battery materials using powder diffraction data:: DIFFaX, FAULTS and SH-FullProf approaches [J].

Casas-Cabanas, M. ;

Rodriguez-Carvajal, J. ;

Canales-Vazquez, J. ;

Laligant, Y. ;

Lacorre, P. ;

Palacin, M. R. .

JOURNAL OF POWER SOURCES, 2007, 174 (02) :414-420

← 1 2 3 4 →