Electrochemical properties of manganese vanadium molybdenum oxide as the anode for Li secondary batteries

Hara, Daishu; Ikuta, Hiromasa; Uchimoto, Yoshiharu; Wakihara, Masataka

doi:10.1039/b201966c

Cited by 35 publications

(45 citation statements)

References 16 publications

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“…Vanadium oxides and vanadates have activated a new interest as promising electrode materials [3][4][5]. This may be ascribed to their high-specific capacity and layered crystal structure [6].…”

Section: Introductionmentioning

confidence: 99%

Controllable synthesis of β-Mn2V2O7 microtubes and hollow microspheres

Liang

Qian

2008

Front. Chem. China

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b-Mn 2 V 2 O 7 microtubes with a length of 15-25 mm, 2.5-3.5 mm external diameter, and , 0.4 mm wall thickness, as well as b-Mn 2 V 2 O 7 hollow microspheres with an average outer diameter of 2 mm, were successfully synthesized in a suitable molar ratio of NH 4 VO 3 and MnCO 3 powders via a hydrothermal process. X-ray powder diffraction (XRD) and field emission scanning electron microscopy (FESEM) were used to characterize the products, and the magnetic susceptibility curve was also measured. In the whole process, the concentration of Mn 2+ cations derived from MnCO 3 dissolution plays a crucial role in the formation of b-Mn 2 V 2 O 7 microtubes and hollow microspheres.

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Section: Introductionmentioning

confidence: 99%

Controllable synthesis of β-Mn2V2O7 microtubes and hollow microspheres

Liang

Qian

2008

Front. Chem. China

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“…As a result, LiVMoO 6 electrode exhibits the overall electrochemical performances in terms of high reversible capacity, excellent cycle stability and rate capability among the binary 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 10 or ternary TMOs anode materials. 35 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 Ex situ XPS (Fig. 7) and XRD (Fig.…”

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confidence: 97%

Brannerite-Type Vanadium–Molybdenum Oxide LiVMoO₆ as a Promising Anode Material for Lithium-Ion Batteries with High Capacity and Rate Capability

Chen¹,

Wang²,

et al. 2015

ACS Appl. Mater. Interfaces

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Brannerite-type vanadium-molybdenum oxide LiVMoO6 is prepared by a facile liquid-phase method, and its electrochemical properties as anode of lithium-ion batteries are comprehensively studied by means of galvanostatic charge-discharge profiles, rate performance, and cyclic voltammetry. In the working voltage between 3.0 and 0.01 V, LiVMoO6 delivers a high reversible capacity of more than 900 mAh g(-1) at the current density of 100 mA g(-1) and a superior rate capability with discharge capacity of ca. 584 and 285 mAh g(-1) under the high current densities of 2 and 5 A g(-1), respectively. Moreover, ex situ X-ray diffraction and X-ray photoelectron spectroscopy are utilized to examine the phase evolution and valence changes during the first lithiated process. A small amount of inserted Li(+) induces a decomposition of LiVMoO6 into Li2Mo2O7 and V2O5, which play the host during further lithiated processes. When being discharged to 0.01 V, most V(5+) change into V(3+)/V(2+), suggesting intercalation/deintercalation processes, whereas Mo(6+) are reduced into a metallic state on the basis of the conversion reaction. The insights obtained from this study will benefit the design of novel anode materials for lithium-ion batteries.

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“…Therefore, the irreversible capacity of LiCoVO 4 during the first cycle was about 134 Ah kg Ϫ1 and smaller than that of other oxides reported previously. [8][9][10][11][12] To investigate the irreversible reaction, the variation of irreversible capacity was investigated as a function of various cutoff voltages, and the results are summarized in Fig. 2.…”

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confidence: 99%

Lithium Insertion/Removal Mechanism of LiCoVO[sub 4] in Lithium-Ion Cells

Shirakawa

Nakayama

Ikuta

et al. 2004

Electrochem. Solid-State Lett.

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The first charge and discharge reaction of LiCoVO 4 with a spinel structure as an anode material for a Li-ion battery was investigated. LiCoVO 4 showed a much larger reversible capacity, about 685 Ah kg Ϫ1 , compared with a commercially available graphite anode. From the X-ray diffraction measurement, the spinel structure of LiCoVO 4 where V ions reside in a tetrahedral site initially changed to an atacamite-type structure where V ions occupied an octahedral site and finally showed irreversible deformation to an amorphous structure during the first Li insertion/removal reaction. The results of X-ray absorption spectroscopy analysis revealed that the oxidation state and the coordination environmental structure of V ions varied reversibly in the first cycle process.Development of oxide anodes is vital for improving the performance of Li-ion secondary batteries due to their chemical stability and large capacity. 1-7 Recently, vanadium-based oxides 8-13 have received increasing attention, because vanadium is known to have a wide range of oxidation states that directly relate to large capacity. However, despite its large capacity, these anodes suffer from relatively large irreversible capacity during the first charge-discharge cycle. Therefore fundamental studies, especially on the changes of crystal structure and oxidation state during the first charge-discharge cycle, are necessary to overcome such a problem. Two techniques are useful for the investigation of crystal structure and oxidation state of solid-state materials. One is X-ray diffraction ͑XRD͒ analysis which provides long-range-order structural information. For example, it was revealed by XRD that vanadium-based crystalline compounds like RVO 4 (R ϭ In,Cr,Fe,Al,Y) 12 and MnV 2 O 6 8 irreversibly transformed to an amorphous structure during the first Li insertion. The other technique is X-ray absorption spectroscopy ͑XAS͒ analysis which provides oxidation state and short-rangeorder structure. Rossignol et al. reported the Li insertion/removal mechanism of LiNiVO 4 as an anode material investigated by XAS analysis. 14 In our previous papers, the charge-discharge properties of both MnV 2 O 6 15 with brannerite structure and Mo-doped brannerite, Mn 0.6 Mo 0.8 V 1.2 O 6 16 were discussed in view of the variation of oxidation state and local environmental structure of transition metal using XRD and XAS.In this paper, we focus on the spinel LiCoVO 4 with cation distribution ͓V͔ 8a ͓LiCo] 16d O 4 ͑subscripts 8a and 16d indicate the cation site of Fd3m symmetry͒ to clarify the reason for such behavior as irreversible capacity. The changes of long-range-order structure, short-range-order structure, and oxidation states of each metal were investigated by XRD and XAS techniques, respectively. One advantage of investigating this material is the relative ease of analyzing the structural information, because LiCoVO 4 belongs to high symmetry ͑cubic symmetry͒ and is expected to provide simple features of XRD patterns and/or XAS spectra.The sample LiCoVO 4 was synthesized b...

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Electrochemical properties of manganese vanadium molybdenum oxide as the anode for Li secondary batteries

Cited by 35 publications

References 16 publications

Controllable synthesis of β-Mn2V2O7 microtubes and hollow microspheres

Controllable synthesis of β-Mn2V2O7 microtubes and hollow microspheres

Brannerite-Type Vanadium–Molybdenum Oxide LiVMoO₆ as a Promising Anode Material for Lithium-Ion Batteries with High Capacity and Rate Capability

Lithium Insertion/Removal Mechanism of LiCoVO[sub 4] in Lithium-Ion Cells

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Electrochemical properties of manganese vanadium molybdenum oxide as the anode for Li secondary batteries

Cited by 35 publications

References 16 publications

Controllable synthesis of β-Mn2V2O7 microtubes and hollow microspheres

Controllable synthesis of β-Mn2V2O7 microtubes and hollow microspheres

Brannerite-Type Vanadium–Molybdenum Oxide LiVMoO6 as a Promising Anode Material for Lithium-Ion Batteries with High Capacity and Rate Capability

Lithium Insertion/Removal Mechanism of LiCoVO[sub 4] in Lithium-Ion Cells

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Brannerite-Type Vanadium–Molybdenum Oxide LiVMoO₆ as a Promising Anode Material for Lithium-Ion Batteries with High Capacity and Rate Capability