Electrochemical performance of rare-earth doped LiMn2O4 spinel cathode materials for Li-ion rechargeable battery

Sun, Huaibing; Chen, Yungui; Xu, Chen; Zhu, Ding; Huang, Lihong

doi:10.1007/s10008-011-1514-5

Cited by 76 publications

(29 citation statements)

References 29 publications

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“…For instance, the nonmetals B [10][11][12], F [13][14][15], S [16], Br [17], the general metals Mg [18], Al [19], Ti [20,21], Cr [22,23], Fe [24], Co [19,[25][26][27], Ni [28], Cu [29], Zn [30][31][32], Ga [33], Zr [34], Ru [35], Ag [36,37], Sn [38], Au [39], the rare-earth metals La [40], Ce [41], Pr [42], Nd [43], Sm [44], Gd [45], and the actinide dopants Th [46], U [47]. Some researchers have also modified LiMn 2 O 4 with surface coating [48][49][50][51][52] electrolyte modification [53], laser annealing [54], pulsed laser deposition [55], process optimization …”

Section: Open Accessmentioning

confidence: 99%

Preparation and Doping Mode of Doped LiMn2O4 for Li-Ion Batteries

et al. 2013

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Spinel LiMn 2 O 4 is an appealing candidate cathode material for Li-ion rechargeable batteries, but it suffers from severe capacity fading, especially at higher temperature (55 °C) during discharging/charging. In recent years, many attempts have been made to synthesize modified LiMn 2 O 4 . This paper reviews the recent research on the preparation and doping modes of doped LiMn 2 O 4 for modifying the LiMn 2 O 4. We firstly compared preparation methods for doped spinel LiMn 2 O 4 , such as solid state reactions and solution synthetic methods. Then we mainly discuss doping modes reported in recent years, such as bulk doping, surface doping and combined doping. A comparison of different doping modes is also provided. The research shows that the multiple-ion doping and combined doping modes of LiMn 2 O 4 used in Li-ion battery are excellent for improving different aspects of the electrochemical performance which holds great promise in the future. From this paper, we also can see that spinel LiMnO 4 as an attractive candidate cathode material for Li-ion batteries.

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Section: Open Accessmentioning

confidence: 99%

Preparation and Doping Mode of Doped LiMn2O4 for Li-Ion Batteries

et al. 2013

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“…Cation doping is another effective way to modify the intrinsic properties of electrode materials for lithium-ion batteries. Previous studies have reported that the doping of metal ions into bulk materials can form more stable phase and increase the ionic or electrical conductivity, resulting in the improvement of cycling performance and rate capability [26][27][28][29][30]. It will favor fast charging and discharging if proper cation could be doped in LiVOPO 4 to improve its electrical conductivity or stable its crystal structure.…”

Section: Introductionmentioning

confidence: 97%

Enhanced electrochemical performance of manganese-doped β-LiVOPO4 cathode materials for lithium-ion batteries

Xiong

Wang

et al. 2015

Ionics

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LiV 1-x Mn x OPO 4 (0 ≤ x ≤ 0.2) cathode materials have been first synthesized by substituting V 4+ in β-LiVOPO 4 with Mn 4+ ion using a common solid-state method. Effects of Mn doping on the structures, morphology, and electrochemical properties of β-LiVOPO 4 were investigated by Xray diffraction (XRD), scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS), and various electrochemical methods such as galvanostatic charge-discharge tests, cyclic voltammograms (CV), and electrochemistry impedance spectroscopy (EIS) as well. Of the compositions investigated, the LiV 0.96 Mn 0.04 OPO 4 materials present the best electrochemical characteristics with the first discharge capacity of 150.0 and 148.7 mAh/g kept after 30 cycles at 0.2 C, while the value for β-LiVOPO 4 is only 135.5 and 123.6 mAh/g, respectively. It is clearly demonstrated that the improvement in electrochemical properties of β-LiVOPO 4 may be a result from the reduced charge transfer resistance, the increased lithium-ion diffusion, and phase conversion due to Mn doping.

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“…The capacity fading of pristine LiMn 2 O 4 is strongly inuenced from JahnTeller distortion occurring on the surface of the particles and manganese dissolution into the electrolyte, especially at elevated temperatures. To overcome these drawbacks, two strategies were mainly pursued: elements substitution or oxygen excess to increase the oxidation state of Mn for suppressing the Jahn-Teller eect and surface modication or coating for suppressing the dissolution of Mn into the electrolyte [3]. The rst strategy of doping is known to be an eective route.…”

Section: Introductionmentioning

confidence: 99%

Cr and V Substitution in the LiMn₂O₄Spinel Positive Electrode Li-Ion Batteries

Akbulut

Çetinkaya²,

Guler³

et al. 2015

Acta Phys. Pol. A

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In this study, LiCr0.2V0.4Mn1.4O4 cathode active electrode materials were produced via a facile sol-gel method at 800• C. The surfaces of the LiCr0.2V0.4Mn1.4O4 cathode active electrode materials were then coated with Cu in order to increase the conductivity and suppress the manganese ion dissolution into the electrolyte. The structure and electrochemical properties of the obtained Cr and V substituted LiMn2O4 powders were investigated by X-ray diraction (XRD), scanning electron microscopy (SEM), galvanostatic charge-discharge test and electrochemical impedance spectroscopy (EIS). The improvement in the cycling performances attributed to stabilization of spinel structure by bication ion substation and Cu coating on the spinel particles. EIS analysis conrmed that bication doping and conductive Cu coating contributed stability of the spinel electrodes and provided stable electrolyte/electrode interface due to the suppression of electrolyte decomposition

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Electrochemical performance of rare-earth doped LiMn2O4 spinel cathode materials for Li-ion rechargeable battery

Cited by 76 publications

References 29 publications

Preparation and Doping Mode of Doped LiMn2O4 for Li-Ion Batteries

Preparation and Doping Mode of Doped LiMn2O4 for Li-Ion Batteries

Enhanced electrochemical performance of manganese-doped β-LiVOPO4 cathode materials for lithium-ion batteries

Cr and V Substitution in the LiMn₂O₄Spinel Positive Electrode Li-Ion Batteries

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Electrochemical performance of rare-earth doped LiMn2O4 spinel cathode materials for Li-ion rechargeable battery

Cited by 76 publications

References 29 publications

Preparation and Doping Mode of Doped LiMn2O4 for Li-Ion Batteries

Preparation and Doping Mode of Doped LiMn2O4 for Li-Ion Batteries

Enhanced electrochemical performance of manganese-doped β-LiVOPO4 cathode materials for lithium-ion batteries

Cr and V Substitution in the LiMn2O4Spinel Positive Electrode Li-Ion Batteries

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Cr and V Substitution in the LiMn₂O₄Spinel Positive Electrode Li-Ion Batteries