A V2O5/Conductive‐Polymer Core/Shell Nanobelt Array on Three‐Dimensional Graphite Foam: A High‐Rate, Ultrastable, and Freestanding Cathode for Lithium‐Ion Batteries

Chao, Dongliang; Xia, Xinhui; Liu, Jilei; Fan, Zhanxi; Ng, Charles W. W.; Lin, Jianyi; Zhang, Hua; Shen, Zexiang; Fan, Hong Jin

doi:10.1002/adma.201400719

Cited by 469 publications

(304 citation statements)

References 52 publications

(33 reference statements)

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“…Fan's group also reported the preparation of a V 2 O 5 /conductive polymer (PEDOT) core‐shell hierarchical nanobelt arrays on ultrafine graphene foam (UGF‐V 2 O 5 /PEDOT) 141. The “arrow‐tail”‐like V 2 O 5 nanobelts offered desirable merits especially in shorter Li + ion diffusion lengths and direct electron transport.…”

Section: Self‐supported Metal Oxide Nanoarrays On 3d Porous Substratesmentioning

confidence: 99%

Recent Progress in Self‐Supported Metal Oxide Nanoarray Electrodes for Advanced Lithium‐Ion Batteries

Zhang

2016

Advanced Science

110

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The rational design and fabrication of electrode materials with desirable architectures and optimized properties has been demonstrated to be an effective approach towards high‐performance lithium‐ion batteries (LIBs). Although nanostructured metal oxide electrodes with high specific capacity have been regarded as the most promising alternatives for replacing commercial electrodes in LIBs, their further developments are still faced with several challenges such as poor cycling stability and unsatisfying rate performance. As a new class of binder‐free electrodes for LIBs, self‐supported metal oxide nanoarray electrodes have many advantageous features in terms of high specific surface area, fast electron transport, improved charge transfer efficiency, and free space for alleviating volume expansion and preventing severe aggregation, holding great potential to solve the mentioned problems. This review highlights the recent progress in the utilization of self‐supported metal oxide nanoarrays grown on 2D planar and 3D porous substrates, such as 1D and 2D nanostructure arrays, hierarchical nanostructure arrays, and heterostructured nanoarrays, as anodes and cathodes for advanced LIBs. Furthermore, the potential applications of these binder‐free nanoarray electrodes for practical LIBs in full‐cell configuration are outlined. Finally, the future prospects of these self‐supported nanoarray electrodes are discussed.

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Section: Self‐supported Metal Oxide Nanoarrays On 3d Porous Substratesmentioning

confidence: 99%

Recent Progress in Self‐Supported Metal Oxide Nanoarray Electrodes for Advanced Lithium‐Ion Batteries

Zhang

2016

Advanced Science

110

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“…Sodium vanadium oxides have also attracted considerable attention as electrodes in energy‐storage systems 66, 67. Layered NaV x O y materials, such as NaV 6 O 15 and NaV 3 O 8 , showed the promising specific capacity in SIBs.…”

Section: Symmetric Electrodes In Different Energy‐storage Systemsmentioning

confidence: 99%

Symmetric Electrodes for Electrochemical Energy‐Storage Devices

et al. 2016

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Increasing environmental problems and energy challenges have so far attracted urgent demand for developing green and efficient energy‐storage systems. Among various energy‐storage technologies, sodium‐ion batteries (SIBs), electrochemical capacitors (ECs) and especially the already commercialized lithium‐ion batteries (LIBs) are playing very important roles in the portable electronic devices or the next‐generation electric vehicles. Therefore, the research for finding new electrode materials with reduced cost, improved safety, and high‐energy density in these energy storage systems has been an important way to satisfy the ever‐growing demands. Symmetric electrodes have recently become a research focus because they employ the same active materials as both the cathode and anode in the same energy‐storage system, leading to the reduced manufacturing cost and simplified fabrication process. Most importantly, this feature also endows the symmetric energy‐storage system with improved safety, longer lifetime, and ability of charging in both directions. In this Progress Report, we provide the comprehensive summary and comment on different symmetric electrodes and focus on the research about the applications of symmetric electrodes in different energy‐storage systems, such as the above mentioned SIBs, ECs and LIBs. Further considerations on the possibility of mass production have also been presented.

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“…Figure 3 shows the first five CV curves of the V2O5-400 cathode at a scan rate of 0.1 mV·s −1 in a potential range from 2.0 to 4.0 V. Four main pairs of redox peaks were observed at around 3.59/3.64, 3.36/3.45, 3.16/3.34, and 2.26/2.51 V, respectively, which are associated with the reversible lithium intercalation/deintercalation into/from V2O5 to form α-LixV2O5, ε-LixV2O5, δ-LixV2O5, and γ-LixV2O5, as expressed in Equations (1)- (4) [25,26,31,32]. In addition, the CV curves were well overlapped, indicating the highly reactive reversibility and good cycling stability of the cathode.…”

Section: Electrochemical Performancementioning

confidence: 99%

“…Developing nanostructured materials has been demonstrated to be an effective method to address these critical issues because nanomaterials have a large surface area to provide more reaction sites and can effectively shorten the diffusion distance of lithium ions during the insertion/extraction, thereby resulting in an enhanced cycling performance and rate capability [15,16]. A variety of V2O5 nanostructures, such as nanourchins [17], nanotubes [18], nanospikes [10], nanorods [8], nanowires [19][20][21], and nanobelts [22][23][24][25], have been fabricated, and improved electrochemical performance has been achieved with these materials when used as cathodes for LIBs. In particular, hollow structures are rather favorable because the unique hollow structure can effectively buffer the volume expansion of the V2O5 cathode to improve the cycling performance 2 of 10 [9,[26][27][28].…”

Section: Introductionmentioning

confidence: 99%

Facile Synthesis of V2O5 Hollow Spheres as Advanced Cathodes for High-Performance Lithium-Ion Batteries

Zhang

Wang

Liu

et al. 2017

Preprint

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Three-dimensional V2O5 hollow structures have been prepared through a simple synthesis strategy combining solvothermal treatment and a subsequent thermal annealing. The V2O5 materials are composed of microspheres 2-3 μm in diameter and with a distinct hollow interior. The as-synthesized V2O5 hollow microspheres, when evaluated as a cathode material for lithium-ion batteries, can deliver a specific capacity as high as 273 mAh·g −1 at 0.2 C. Benefiting from the hollow structures that afford fast electrolyte transport and volume accommodation, the V2O5 cathode also exhibits a superior rate capability and excellent cycling stability. The good Li-ion storage performance demonstrates the great potential of this unique V2O5 hollow material as a high-performance cathode for lithium-ion batteries.

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A V₂O₅/Conductive‐Polymer Core/Shell Nanobelt Array on Three‐Dimensional Graphite Foam: A High‐Rate, Ultrastable, and Freestanding Cathode for Lithium‐Ion Batteries

Cited by 469 publications

References 52 publications

Recent Progress in Self‐Supported Metal Oxide Nanoarray Electrodes for Advanced Lithium‐Ion Batteries

Recent Progress in Self‐Supported Metal Oxide Nanoarray Electrodes for Advanced Lithium‐Ion Batteries

Symmetric Electrodes for Electrochemical Energy‐Storage Devices

Facile Synthesis of V<sub>2</sub>O<sub>5</sub> Hollow Spheres as Advanced Cathodes for High-Performance Lithium-Ion Batteries

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