Synthesis and characterization of LiMxMn2-xO4 (M = Al, Bi and Cs ions) films for lithium ion batteries

被引：13

作者：

Fonseca, C. Polo ^{[1
]}

Bellei, M. A. ^{[1
]}

Amaral, F. A. ^{[1
]}

Canobre, S. C. ^{[1
]}

Neves, S. ^{[1
]}

机构：

[1] Univ Sao Francisco, LCAM, Postgrad Program Stricto Sensu Engn & Mat Sci, BR-13251900 Itatiba, SP, Brazil

来源：

ENERGY CONVERSION AND MANAGEMENT | 2009年 / 50卷 / 06期

基金：

巴西圣保罗研究基金会;

关键词：

Electrode materials; Energy storage materials; Sol-gel synthesis; LIMN2O4; THIN-FILMS; ELECTROCHEMICAL PROPERTIES; CATHODE MATERIALS; ELECTRODES; SPINELS; OXIDES; LI; IMPROVEMENT; TRANSPORT; INSERTION;

D O I：

10.1016/j.enconman.2009.02.009

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Films of doped LiMxMn2-xO4 (M = Cs, Al and Bi) were deposited on Indium Tin Oxide (ITO) substrate using the Pechini method. X-ray diffraction (XRD) and differential thermal analysis (DTA) were used for structural characterization of the oxides. Their morphology was studied by scanning electron microscope (SEM) and their electrochemical properties by cyclic voltammetry, charge/discharge tests and electrochemical impedance spectroscopy in a 1.0 mol L-1 LiClO4/EC:PC 1:1 (v/v) electrolyte. A single-phase spinel structure was characterized from X-ray patterns of the as-grown films. The best electrochemical performance was obtained with a LiCs0.02Mn1.98O4 cathode. After 15 cycles, its specific capacity was 127 mA h g(-1). This value was maintained up to the 30th cycle. The diffusion coefficient value determined by electrochemical impedance spectroscopy was 6.4 x 10(-8) cm(2) s(-1). indicating that electrochemical processes were highly favored on the LiCs0.02Mn1.98O4 films. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：1556 / 1562

页数：7

共 34 条

[1] Electrochemical characteristics of cobalt-doped LiCoyMn2-yO4 (0≤y≤0.66) spinels synthesized at low temperature from CoxMn3-xO4 precursors
Amarilla, JM
de Vidales, JLM
Rojas, RM
[J]. SOLID STATE IONICS, 2000, 127 (1-2) : 73 - 81
[2] CoO2, the end member of the LixCoO2 solid solution
Amatucci, GG
Tarascon, JM
Klein, LC
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1996, 143 (03) : 1114 - 1123
[3] Effect of preparation methods of LiNi1-xCoxO2 cathode materials on their chemical structure and electrode performance
Cho, J
Kim, G
Lim, HS
[J]. JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1999, 146 (10) : 3571 - 3576
[4] A new approach to obtain lithium nickel cobalt oxide porous films
Fonseca, Carla Polo
Paula, Ricardo M.
Pallone, Eliria M. J. A.
Neves, Silmara
[J]. ELECTROCHIMICA ACTA, 2006, 51 (28) : 6419 - 6425
[5] Improving the electrochemical properties of porous LiCoO2 films obtained by template synthesis
Fonseca, CP
Fantini, MCA
Neves, S
[J]. THIN SOLID FILMS, 2005, 488 (1-2) : 68 - 73
[6] IMPEDANCE INVESTIGATION OF THE CHARGE TRANSPORT IN FILM-MODIFIED ELECTRODES
GABRIELLI, C
TAKENOUTI, H
HAAS, O
TSUKADA, A
[J]. JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 1991, 302 (1-2) : 59 - 89
[7] IMPROVED CAPACITY RETENTION IN RECHARGEABLE 4V LITHIUM LITHIUM MANGANESE OXIDE (SPINEL) CELLS
GUMMOW, RJ
DEKOCK, A
THACKERAY, MM
[J]. SOLID STATE IONICS, 1994, 69 (01) : 59 - 67
[8] THE CARBON LI1+XMN2O4 SYSTEM
GUYOMARD, D
TARASCON, JM
[J]. SOLID STATE IONICS, 1994, 69 (3-4) : 222 - 237
[9] Synthesis and electrochemical properties of chemically substituted LiMn2O4 prepared by a solution-based gel method
He, Ben-Lin
Zhou, Wen-Jia
Liang, Yan-Yu
Bao, Shu-Juan
Li, Hu-Lin
[J]. JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2006, 300 (02) : 633 - 639
[10] Hossain S., 1995, Handbook of Batteries, V2nd, p36.1

← 1 2 3 4 →