Self-template processed hierarchical V2O5 nanobelts as cathode for high performance lithium ion battery

Niu, Changlei; Li, Jinbo; Jin, Haibo; Shi, Honglong; Zhu, Youqi; Wang, Wenzhong; Cao, Mao‐Sheng

doi:10.1016/j.electacta.2015.09.113

Cited by 30 publications

(9 citation statements)

References 61 publications

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“…The V x O y -TiO 2 -rGO composite anode exhibited stable cycle performance, while retaining a discharge capacity of 160 mAh g −1 after the 50th cycle. This is comparable to the capacities reported in the literature [24][25][26][27][28][29][30][31][32][33][34][35][36] (see Table 2). The results of the cyclability study of all investigated materials are presented in Figure 6.…”

Section: Electrochemical Propertiessupporting

confidence: 88%

The Impact of the Vanadium Oxide Addition on the Physicochemical Performance Stability and Intercalation of Lithium Ions of the TiO2-rGO-electrode in Lithium Ion Batteries

et al. 2020

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This work determines the effect of the addition of various amounts of vanadium oxide on the work of a cell built from a hybrid VxOy-TiO2-rGO system in a lithium-ion cell. Moreover, a new method based on solvothermal chemistry is proposed for the creation of a new type of composite material combining reduced graphene, vanadium oxide and crystalline anatase. The satisfactory electrochemical properties of VxOy-TiO2-rGO hybrids can be attributed to the perfect matching of the morphology and structure of VxOy-TiO2 and rGO. In addition, it is also responsible for the partial transfer of electrons from rGO to VxOy-TiO2, which increases the synergistic interaction of the VxOy-TiO2-rGO hybrid to the reversible storage of lithium. In addition a full cell was created LiFePO4/VxOy-TiO2-rGO. The cell showed good cyclability while providing a capacity of 120 mAh g−1.

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Section: Electrochemical Propertiessupporting

confidence: 88%

The Impact of the Vanadium Oxide Addition on the Physicochemical Performance Stability and Intercalation of Lithium Ions of the TiO2-rGO-electrode in Lithium Ion Batteries

et al. 2020

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“…8 One material, which can equally host Li-as well as Na-ions is the layered orthorhombic transition metal oxide V 2 O 5 . V 2 O 5 was studied excessively in LIBs, because it offers reasonable capacities 16 and can be versatilely structured, ranging from solid microspheres 17 to hollow microspheres, 18 yolk-shell microstructures, 19 microflowers, 20 sponge like microstructures 21 and several nanostructures like aerogels/xerogels, 22 nanofibers 23 and nanoflakes. 24 Some of these V 2 O 5 structures have already been tested in NIBs.…”

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confidence: 99%

Impact of the Morphology of V₂O₅Electrodes on the Electrochemical Na⁺-Ion Intercalation

Seidl

Chu

et al. 2018

J. Electrochem. Soc.

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The development of high performance electrodes for Na-ion batteries requires a fundamental understanding of the electrode electrochemistry. In this work, the effect of the morphology of vanadium oxide on battery performance is investigated. First, the phase transitions upon sodiation/de-sodiation of Na x V 2 O 5 cathodes in standard battery solvents are explored by cyclic voltammetry and X-Ray diffraction. At potentials 1.5 V positive of Na/Na + the insertion of the first Na + into pristine V 2 O 5 is completed and α'-NaV 2 O 5 is formed. A discharge to 1.0 V results in the introduction of a second Na + and after a deep discharge to 0 V a third Na + is intercalated. When cycled as an intercalation electrode, the Na-content x in Na x V 2 O 5 varies between x = 1 (charged) and x = 2 (discharged). For studying the effect of electrode morphology on the battery performance, several types of V 2 O 5 (hollow V 2 O 5 microspheres, V 2 O 5 nanobundles and V 2 O 5 nanobundles blended with 10% wt TiO 2) were prepared and compared to a commercially available V 2 O 5-micropowder. The nanobundles were prepared by a facile sonochemical process. In comparison to the microsized V 2 O 5 morphologies, the potential plateaus in the charge/discharge curves of the V 2 O 5 nanobundles are at more positive potentials and the capacity loss in the first cycle is suppressed. The V 2 O 5 nanobundles showed the best battery performance with a reversible capacity of 209.2 mAh g −1 and an energy density of 571.2 mWh kg −1 (2 nd cycle). After an initial capacity fading, which can be slightly suppressed by blending the V 2 O 5 with TiO 2 , the pure V 2 O 5 nanobundles have a practical capacity of 85 mAh g −1 , an operation potential of 2.4 V, an energy density of 266.5 mWh kg −1 and a capacity retention of 83% after 100 cycles. The best battery performance of the nanomaterial is ascribed in this study to the amorphous character of the electrode, favoring faster electrode kinetics due to a (pseudo-) capacity dominated charging/discharging, reducing diffusion lengths and preventing further amorphization, which all is beneficial in terms of lifetime, capacity, operation voltage, energy density and energy efficiency.

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“…Furthermore, the porous structure might also be of advantage to accommodate the volume variations during Li-ion intercalation and de-intercalation. Niu et al 82 successfully fabricated hierarchical V 2 O 5 nanobelts by an economical and facile hydrothermal strategy followed by annealing treatment, as illustrated in Fig. 7.…”

Section: D Nanostructuresmentioning

confidence: 99%

V₂O₅-Based nanomaterials: synthesis and their applications

et al. 2018

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Self-template processed hierarchical V2O5 nanobelts as cathode for high performance lithium ion battery

Cited by 30 publications

References 61 publications

The Impact of the Vanadium Oxide Addition on the Physicochemical Performance Stability and Intercalation of Lithium Ions of the TiO2-rGO-electrode in Lithium Ion Batteries

The Impact of the Vanadium Oxide Addition on the Physicochemical Performance Stability and Intercalation of Lithium Ions of the TiO2-rGO-electrode in Lithium Ion Batteries

Impact of the Morphology of V₂O₅Electrodes on the Electrochemical Na⁺-Ion Intercalation

V₂O₅-Based nanomaterials: synthesis and their applications

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Self-template processed hierarchical V2O5 nanobelts as cathode for high performance lithium ion battery

Cited by 30 publications

References 61 publications

The Impact of the Vanadium Oxide Addition on the Physicochemical Performance Stability and Intercalation of Lithium Ions of the TiO2-rGO-electrode in Lithium Ion Batteries

The Impact of the Vanadium Oxide Addition on the Physicochemical Performance Stability and Intercalation of Lithium Ions of the TiO2-rGO-electrode in Lithium Ion Batteries

Impact of the Morphology of V2O5Electrodes on the Electrochemical Na+-Ion Intercalation

V2O5-Based nanomaterials: synthesis and their applications

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Impact of the Morphology of V₂O₅Electrodes on the Electrochemical Na⁺-Ion Intercalation

V₂O₅-Based nanomaterials: synthesis and their applications