Structural stability and electrochemical properties of gadolinium-substituted LiGdxMn2-xO4 spinel as cathode materials for Li-ion rechargeable batteries

被引:11
作者
Vediappan, Kumaran [1 ,2 ,3 ,4 ]
Prasanna, Kadirvelayutham [3 ,4 ]
Shanmugan, Swaminathan [1 ,2 ]
Gnanamuthu, R. M. [1 ,2 ]
Lee, Chang Woo [3 ,4 ]
机构
[1] SRM Univ Kattankulathur, SRM Res Inst, Kattankulathur 603203, Tamil Nadu, India
[2] SRM Univ Kattankulathur, Dept Chem, Kattankulathur 603203, Tamil Nadu, India
[3] Kyung Hee Univ, Coll Engn, Dept Chem Engn, 1 Seochun, Gihung 446701, Yongin, South Korea
[4] Kyung Hee Univ, Coll Engn, Green Energy Ctr, 1 Seochun, Gihung 446701, Yongin, South Korea
关键词
Spinel LiMn2O4; Gadolinium; Co-precipitation; Charge transfer process; Lithium-ion batteries; LITHIUM BATTERIES; LIMN2O4; SPINEL; PERFORMANCE; LICOO2; OXIDES; CELLS;
D O I
10.1016/j.apsusc.2017.10.223
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
Gadolinium-substituted spinel LiGdxMn2-xO4 (x = 0.0 and 0.5) cathode crystals were synthesized by co-precipitation and dual calcination. Structural characterization using X-ray diffraction pattern revealed that gadolinium doping in LiMn2O4 resulted in the highly ordered cubic spinel structure with only slight increase in the average d-spacing and lattice parameters. X-ray photoelectron spectroscopic analysis indicated an increase in the average oxidation state of manganese in the Gd-doped material in comparison to its pristine spinel counterpart. Morphological characterization using field emission scanning electron microscopy and transmission electron microscopy revealed that gadolinium doping in LiMn2O4 resulted in a decrease of the average particle size. Electrochemical charge/discharge studies at various current rates showed that the LiGd0.5Mn1.5O4 spinel exhibited excellent and stable cycling stability in comparison to Gd-free LiMn2O4 spinel. Gd-substitution in LiMn2O4 brought structural stability via the expansion of LiO4 tetrahedra, contraction of MnO6 octahedra, and avoidance of the Jahn-Teller distortion effect, which translated in high-rate performance and less capacity fading. In addition Gd-doping was found via electrochemical AC impedance spectroscopy to lead to significant increase in electronic conductivity as evident by less charge transfer resistance than the pristine. (C) 2017 Elsevier B.V. All rights reserved.
引用
收藏
页码:412 / 420
页数:9
相关论文
共 25 条
[1]   Synthesis and electrochemical characterizations of nano-scaled Zn doped LiMn2O4 cathode materials for rechargeable lithium batteries [J].
Arumugam, D. ;
Kalaignan, G. Paruthimal ;
Vediappan, Kumaran ;
Lee, Chang Woo .
ELECTROCHIMICA ACTA, 2010, 55 (28) :8439-8444
[2]  
Briggs D., 1985, PRACTICAL SURFACE AN, P37
[3]   Novel LiCoO2 cathode material with Al2O3 coating for a Li ion cell [J].
Cho, J ;
Kim, YJ ;
Park, B .
CHEMISTRY OF MATERIALS, 2000, 12 (12) :3788-3791
[4]   Synthesis and Electrochemical Property of LiMn2O4 Porous Hollow Nanofiber as Cathode for Lithium-Ion Batteries [J].
Duan, Lianfeng ;
Zhang, Xueyu ;
Yue, Kaiqiang ;
Wu, Yue ;
Zhuang, Jian ;
Lu, Wei .
NANOSCALE RESEARCH LETTERS, 2017, 12
[5]   The structure of CeAlO3 by Rietveld refinement of X-ray powder diffraction data [J].
Fu, WT ;
IJdo, DJW .
JOURNAL OF SOLID STATE CHEMISTRY, 2004, 177 (09) :2973-2976
[6]   Synthesis and electrochemical performance of tetravalent doped LiCoO2 in lithium rechargeable cells [J].
Gopukumar, S ;
Jeong, Y ;
Kim, KB .
SOLID STATE IONICS, 2003, 159 (3-4) :223-232
[7]   Gadolinium-Doped LiMn2O4 Cathodes in Li Ion Batteries: Understanding the Stabilized Structure and Enhanced Electrochemical Kinetics [J].
Han, Su Cheol ;
Singh, Satendra Pal ;
Hwang, Yun-hwa ;
Bae, Eun Gyoung ;
Park, Byung Kyu ;
Sohn, Kee-Sun ;
Pyo, Myoungho .
JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 2012, 159 (11) :A1867-A1873
[8]   Properties of thermal gadolinium oxide films on silicon [J].
Hong-Hsi, K ;
Chang, LB ;
Jeng, MJ ;
Kuei, PY ;
Horng, KY .
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2005, 44 (5A) :3205-3208
[9]   Effect of doping LiMn2O4 spinel with a tetravalent species such as Si(IV) versus with a trivalent species such as Ga(III). Electrochemical, magnetic and ESR study [J].
Iturrondobeitia, A. ;
Goni, A. ;
Palomares, V. ;
Gil de Muro, I. ;
Lezama, L. ;
Rojo, T. .
JOURNAL OF POWER SOURCES, 2012, 216 :482-488
[10]   High-performance carbon-coated mesoporous LiMn2O4 cathode materials synthesized from a novel hydrated layered-spinel lithium manganate composite [J].
Jiang, Caihua ;
Tang, Zilong ;
Deng, Shiqing ;
Hong, Ye ;
Wang, Shitong ;
Zhang, Zhongtai .
RSC ADVANCES, 2017, 7 (07) :3746-3751