Construction of carbon nanoflakes shell on CuO nanowires core as enhanced core/shell arrays anode of lithium ion batteries

Cao, Feng; Xia, Xue; Pan, Guoxiang; Chen, J.; Zhang, Yujian

doi:10.1016/j.electacta.2015.08.055

Cited by 37 publications

(17 citation statements)

References 36 publications

(48 reference statements)

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“…Another two peaks are recorded in the range of 2.3–2.9 V, corresponding to the deeper desertion of Li‐ions from Li y V 2 O 5 and the oxidation from Cu 2 O to CuO. In the following cycle, a new cathodic peak detected around 2.15 V can be ascribed to the creation of Cu II 1– x Cu I x O 1– x /2 solid solution, which is vanished after following cycles, indicating the redox of CuO/Cu II 1– x Cu I x O 1– x /2 solid solution is irreversible. The CV curves of third and fourth cycles almost overlap, implying a good cyclability for CuVO, while the reduction peak of d‐CuVO electrode gradually moves to lower potential for comparison, indicating a weaker structural stability for d‐CuVO without V 2 O 5 amorphous layer against insertion and extraction of lithium ions.…”

Section: Resultsmentioning

confidence: 94%

Phase Separation Derived Core/Shell Structured Cu₁₁ V₆ O₂₆ /V₂ O₅ Microspheres: First Synthesis and Excellent Lithium-Ion Anode Performance with Outstanding Capacity Self-Restoration

Pei

Chen

Zhang

et al. 2017

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Novel amorphous vanadium oxide coated copper vanadium oxide (Cu V O /V O ) microspheres with 3D hierarchical architecture have been successfully prepared via a microwave-assisted solution method and subsequent annealing induced phase separation process. Pure Cu V O microspheres without V O coating are also obtained by an H O solution dissolving treatment. When evaluated as an anode material for lithium-ion batteries (LIBs), the as-synthesized hybrid exhibits large reversible capacity, excellent rate capability, and outstanding capacity self-recovery. Under the condition of high current density of 1 A g , the 3D hierarchical Cu V O /V O hybrid maintains a reversible capacity of ≈1110 mA h g . Combined electrochemical analysis and high-resolution transmission electron microscopy observation during cycling reveals that the amorphous V O coating plays an important role on enhancing the electrochemical performances and capacity self-recovery, which provides an active amorphous protective layer and abundant grain interfaces for efficient inserting and extracting of Li-ion. As a result, this new copper vanadium oxide hybrid is proposed as a promising anode material for LIBs.

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Section: Resultsmentioning

confidence: 94%

Phase Separation Derived Core/Shell Structured Cu₁₁ V₆ O₂₆ /V₂ O₅ Microspheres: First Synthesis and Excellent Lithium-Ion Anode Performance with Outstanding Capacity Self-Restoration

Pei

Chen

Zhang

et al. 2017

Small

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“…Other conversional and intercalation metal oxides, sulfides, and Li-inserted compounds also obtain markedly improved structural and electrochemical properties, such as SnS 2 [ 136 , 137 ], SnO 2 [ 138 ], MoO 3 [ 139 ], Fe 3 O 4 [ 140 ], Fe 2 O 3 [ 141 ], CuO [ 142 ] and Li 4 Ti 5 O 12 [ 120 ]. As demonstrated by Alshareef et al, an optimal HfO 2 layer (~1 nm) corresponding to 10 ALD cycles effectively compromises between Li + ion diffusion and passivation effects.…”

Section: Sur-/interfacial Engineering Optimization Via the Aldmentioning

confidence: 99%

Recent Progresses and Development of Advanced Atomic Layer Deposition towards High-Performance Li-Ion Batteries

Liang

Sun

et al. 2017

Nanomaterials

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Electrode materials and electrolytes play a vital role in device-level performance of rechargeable Li-ion batteries (LIBs). However, electrode structure/component degeneration and electrode-electrolyte sur-/interface evolution are identified as the most crucial obstacles in practical applications. Thanks to its congenital advantages, atomic layer deposition (ALD) methodology has attracted enormous attention in advanced LIBs. This review mainly focuses upon the up-to-date progress and development of the ALD in high-performance LIBs. The significant roles of the ALD in rational design and fabrication of multi-dimensional nanostructured electrode materials, and finely tailoring electrode-electrolyte sur-/interfaces are comprehensively highlighted. Furthermore, we clearly envision that this contribution will motivate more extensive and insightful studies in the ALD to considerably improve Li-storage behaviors. Future trends and prospects to further develop advanced ALD nanotechnology in next-generation LIBs were also presented.

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“…These NCAs can work as the nanoarchitectured electron collector and transport medium as well as the structural support and inactive confining buffer, and integrate with active materials to form the NAA electrodes. In addition, by annealing the Cu(OH) 2 nanoarrays fabricated by ED, Cu‐based oxide NAAs are obtained and used as either single‐phased or composite electrodes . In comparison, CBD is employed to mainly fabricate oxide‐ and sulfide‐based NAAs because the solution‐phased growth of oxides and sulfides can be conducted under the ambient atmosphere at a relatively lower temperature.…”

Section: Fabrication Of the Naa Electrodesmentioning

confidence: 99%

Nanoarchitectured Array Electrodes for Rechargeable Lithium‐ and Sodium‐Ion Batteries

Zhou

Lei

2016

Advanced Energy Materials

170

107

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Among the various available EES technologies, lithium-ion batteries (LIBs) are certainly a contender because of the much higher energy stored per unit weight or volume compared to other conventional batteries (lead-acid, nickel-hydride, redoxfl ow, and high-temperature batteries). The higher energy density comes from the higher cell voltage (3-5 V, Figure 1 ) due to the use of non-aqueous electrolytes along with higher capacity values (up to 4000 mAh g −1 ) compared to aqueous electrolyte-based battery systems (< 2 V). [ 2,3 ] Since the fi rst commercial launch by Sony, LIBs have conquered the market of portable electronics during the past two decades. They are now being intensively pursued for transportation applications, including hybrid electric vehicles (HEV), plug-in hybrid electric vehicles (PHEV), and electric vehicles (EV). The representative EV model is Model S (Tesla Motor) that employs LIBs to realize all-wheel drive with dual motors, reaching a maximum driving range of 270 miles and possessing an environment-friendly feature of zero emissions. LIBs are also being seriously considered for the effi cient storage and utilization of intermittent renewable energies due to the rising demands for power storage units that supplement irregular power generation and consumption patterns, and also realize the future power network system, such as the Smart Grid. LIBs with good capabilities and rapid response properties are appropriate for smoothing short time power variations through frequency regulation. [ 4 ] The market is at its initial stage and worth approximately 2 billion dollars, but is expected to grow explosively up to 35 billion dollars by 2020 with an expansion of renewable energy supplies and the Smart Grid system. [ 5 ] However, concerns over potentially rising costs and the availability of global lithium resources have been arisen because of the fact that most easily accessible lithium reserves are in remote or politically sensitive areas. [6][7][8] The foreseeable price rise of lithium compounds will make EES technologies based on LIBs less affordable. Recently, rapidly growing attention has shifted to sodium-ion batteries (SIBs) due to the cost effectiveness and geographical distribution of sodium. Theoretically speaking, SIBs may not reach the energy density of that of LIBs because Na is three times heavier than Li. But given its suitable potential of −2.71 V (vs SHE), which is only 0.3 V more positive than that of Li, there is only a small energy penalty to pay, meaning that SIBs could fi nd their more suitable application in the presence of a large grid support where the operational cost Rechargeable ion batteries have contributed immensely to shaping the modern world and been seriously considered for the effi cient storage and utilization of intermittent renewable energies. To fulfi ll their potential in the future market, superior battery performance of high capacity, great rate capability, and long lifespan is undoubtedly required. In the past decade, along with discovering new electrode mat...

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Construction of carbon nanoflakes shell on CuO nanowires core as enhanced core/shell arrays anode of lithium ion batteries

Cited by 37 publications

References 36 publications

Phase Separation Derived Core/Shell Structured Cu₁₁ V₆ O₂₆ /V₂ O₅ Microspheres: First Synthesis and Excellent Lithium-Ion Anode Performance with Outstanding Capacity Self-Restoration

Phase Separation Derived Core/Shell Structured Cu₁₁ V₆ O₂₆ /V₂ O₅ Microspheres: First Synthesis and Excellent Lithium-Ion Anode Performance with Outstanding Capacity Self-Restoration

Recent Progresses and Development of Advanced Atomic Layer Deposition towards High-Performance Li-Ion Batteries

Nanoarchitectured Array Electrodes for Rechargeable Lithium‐ and Sodium‐Ion Batteries

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Construction of carbon nanoflakes shell on CuO nanowires core as enhanced core/shell arrays anode of lithium ion batteries

Cited by 37 publications

References 36 publications

Phase Separation Derived Core/Shell Structured Cu11 V6 O26 /V2 O5 Microspheres: First Synthesis and Excellent Lithium-Ion Anode Performance with Outstanding Capacity Self-Restoration

Phase Separation Derived Core/Shell Structured Cu11 V6 O26 /V2 O5 Microspheres: First Synthesis and Excellent Lithium-Ion Anode Performance with Outstanding Capacity Self-Restoration

Recent Progresses and Development of Advanced Atomic Layer Deposition towards High-Performance Li-Ion Batteries

Nanoarchitectured Array Electrodes for Rechargeable Lithium‐ and Sodium‐Ion Batteries

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Product

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Phase Separation Derived Core/Shell Structured Cu₁₁ V₆ O₂₆ /V₂ O₅ Microspheres: First Synthesis and Excellent Lithium-Ion Anode Performance with Outstanding Capacity Self-Restoration

Phase Separation Derived Core/Shell Structured Cu₁₁ V₆ O₂₆ /V₂ O₅ Microspheres: First Synthesis and Excellent Lithium-Ion Anode Performance with Outstanding Capacity Self-Restoration