Designed strategy to fabricate a patterned V<sub>2</sub>O<sub>5</sub>nanobelt array as a superior electrode for Li-ion batteries

Wang, Yu; Zhang, Hui Juan; Lim, Wei Xiang.; Lin, Jian; Wong, Chee Cheong

doi:10.1039/c0jm02727h

Cited by 94 publications

(74 citation statements)

References 27 publications

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“…11 The with a slight capacity fading. In recent years, 2D materials, including nanosheets 24,25 and entanglement networks of nanobelts, 26,27 Fig. 2a.…”

Section: O 5 Nanostructures For Libsmentioning

confidence: 99%

Vanadium-based nanostructure materials for secondary lithium battery applications

et al. 2015

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Vanadium-based materials, such as V2O5, LiV3O8, VO2(B) and Li3V2(PO4)3 are compounds that share the characteristic of intercalation chemistry. Their layered or open frameworks allow facile ion movement through the interspaces, making them promising cathodes for LIB applications. To bypass bottlenecks occurring in the electrochemical performances of vanadium-based cathodes that derive from their intrinsic low electrical conductivity and ion diffusion coefficients, nano-engineering strategies have been implemented to "create" newly emerging properties that are unattainable at the bulk solid level. Integrating this concept into vanadiumbased cathodes represents a promising way to circumvent the aforementioned problems as nanostructuring offers potential improvements in electrochemical performances by providing shorter mass transport distances, higher electrode/electrolyte contact interfaces, and better accommodation of strain upon lithium uptake/ release. The significance of nanoscopic architectures has been exemplified in the literature, showing that the idea of developing vanadium-based nanostructures is an exciting prospect to be explored. In this review, we will be casting light on the recent advances in the synthesis of nanostructured vanadium-based cathodes. Furthermore, efficient strategies such as hybridization with foreign matrices and elemental doping are introduced as a possible way to boost their electrochemical performances (e.g., rate capability, cycling stability) to a higher level. Finally, some suggestions relating to the perspectives for the future developments of vanadium-based cathodes are made to provide insight into their commercialization. through the interspaces, making them promising cathodes for LIB applications. To bypass bottlenecks occurring in the electrochemical performances of vanadium-based cathodes that derive from their intrinsic low electrical conductivity and ion diffusion coefficients, nano-engineering strategies have been implemented to "create" newly emerging properties that are unattainable at the bulk solid level. Integrating this concept into vanadium-based cathodes represents a promising way to circumvent the aforementioned problems as nanostructuring offers potential improvements in electrochemical performances by providing shorter mass transport distances, higher electrode/electrolyte contact interfaces, and better accommodation of strain upon lithium uptake/release. The significance of nanoscopic architectures has been exemplified in the literature, showing that the idea of developing vanadium-based nanostructures is an exciting prospect to be explored. In this review, we will be casting light on the recent advances in the synthesis of nanostructured vanadium-based cathodes. Furthermore, efficient strategies such as hybridization with foreign matrices and elemental doping are introduced as a possible way to boost their electrochemical performances (e.g., rate capability, cycling stability) to a higher level. Finally, some suggestions relating to the perspective...

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“…11 The with a slight capacity fading. In recent years, 2D materials, including nanosheets 24,25 and entanglement networks of nanobelts, 26,27 Fig. 2a.…”

Section: O 5 Nanostructures For Libsmentioning

confidence: 99%

Vanadium-based nanostructure materials for secondary lithium battery applications

et al. 2015

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“…5,[12][13][14][15][16][17] In particular, V 2 O 5 nanostructures (such as nanotubes, nanofibers, nanoparticles, nanowires, nanorods, and mesoporous structures) have been demonstrated effective to improve the electrochemical kinetics, shorten the diffusion 35 distance for Li + ions, and buffer the volume change during the lithium insertion and extraction processes, as compared with nonnanostructured materials. 5,10,12,16,18 Nevertheless, dispersed nanoparticles may only give very low volumetric energy density, which makes them unsuitable for LIBs in EVs and other large- 40 scale applications. 15 Additionally, some undesirable side reactions or poor thermal stability can emerge due to the extended contact between the electrolyte and the nanosized materials with large surface area, leading to safety hazards and poor cycling stability.…”

Section: Introductionmentioning

confidence: 99%

Additive-free synthesis of 3D porous V2O5 hierarchical microspheres with enhanced lithium storage properties

Zhang¹,

Chen²,

Guo³

et al. 2013

Energy Environ. Sci.

222

150

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A facile synthesis of novel 3D porous V2O5 hierarchical microspheres has been developed, based on an additive-free solvothermal method and subsequent calcination. Due to their unique structure, these V2O5 microspheres display a very stable capacity retention of 130 mA h g (1) over 100 cycles at a current rate of 0.5 C, and show excellent rate capability with a capacity of 105 mA h g (1) even at the 30 C rate. The good electrochemical performance suggests that this unique hierarchical V2O5 material could be a promising candidate as a cathode material for lithium-ion batteries.

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“…6(a), 6(d), and 7(d), a pair of redox processes give rise to the anodic (around 0.42 V, versus Ag/AgCl) and cathodic (around 0.37 V, versus Ag/AgCl) peaks. The tiny difference between them (around 0.05 V) implies that the polarization is greatly reduced and that the electrolyte diffusion process will play a less important role in the overall capacitive performance [33,34]. For nanobelts/nanosheets or nanoparticles, such a result can be reasonably understood, because these two-dimensional or zero-dimensional samples present ultrathin thickness and mesoporosity, or small size, so that the electrolyte can easily diffuse through them without an internal pressure and delay effect [34], which also can further explain the good rate capability achieved for our nanobelt/nanosheet samples.…”

Section: Electrochemical Testing Of Co 3 Omentioning

confidence: 99%

Controllable synthesis of Co3O4 from nanosize to microsize with large-scale exposure of active crystal planes and their excellent rate capability in supercapacitors based on the crystal plane effect

et al. 2011

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Co 3 O 4 nanorods, nanobelts, nanosheets and cubic/octahedral nanoparticles have been successfully synthesized with tunable size from the nanoscale to the microscale, accompanied by a variation in the nature of the exposed crystal planes. The products are formed by thermal treatment of Co(CO 3 ) 0.5 (OH)·0.11H 2 O nanorod, nanobelt, nanosheet and nanocubic/nanooctahedral precursors at 250 °C . Detailed characterization, including X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), and nitrogen adsorption and desorption isotherms, revealed that the as-prepared nanorods, nanobelts, and nanosheet Co 3 O 4 samples are single crystalline and mesoporous in nature with a predominance of exposed high-energy (110) crystal planes. They exhibited excellent electrochemical properties in supercapacitors, showing higher capacitance and better rate capability than conventional cubic/octahedral Co 3 O 4 nanoparticles having exposed low-energy (100) and (111) planes. No decay in capacitance was observed when the scan rate was increased from 5 mV/s to 100 mV/s, or from 1 A/g to 10 A/g. The maximum value of the specific capacitance was calculated to be 162.8 F/g and the capacitance retention reached as high as 90%. Their excellent performance in supercapacitors is believed to result from the large-area exposure of active (110) crystal planes. The Co 3 O 4 nanosheets showed the best performance due to their larger surface area and ability to provide a better pathway for charge transfer, and are promising electrode materials for application in practical supercapacitors.

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Designed strategy to fabricate a patterned V₂O₅nanobelt array as a superior electrode for Li-ion batteries

Cited by 94 publications

References 27 publications

Vanadium-based nanostructure materials for secondary lithium battery applications

Vanadium-based nanostructure materials for secondary lithium battery applications

Additive-free synthesis of 3D porous V2O5 hierarchical microspheres with enhanced lithium storage properties

Controllable synthesis of Co3O4 from nanosize to microsize with large-scale exposure of active crystal planes and their excellent rate capability in supercapacitors based on the crystal plane effect

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Designed strategy to fabricate a patterned V2O5nanobelt array as a superior electrode for Li-ion batteries

Cited by 94 publications

References 27 publications

Vanadium-based nanostructure materials for secondary lithium battery applications

Vanadium-based nanostructure materials for secondary lithium battery applications

Additive-free synthesis of 3D porous V2O5 hierarchical microspheres with enhanced lithium storage properties

Controllable synthesis of Co3O4 from nanosize to microsize with large-scale exposure of active crystal planes and their excellent rate capability in supercapacitors based on the crystal plane effect

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Designed strategy to fabricate a patterned V₂O₅nanobelt array as a superior electrode for Li-ion batteries