Facile synthesis of porous NiO hollow microspheres and its electrochemical lithium-storage performance

Xie, Dong; Yuan, Weiwei; Dong, Zimin; Su, Qingmei; Zhang, Jun; Du, Gaohui

doi:10.1016/j.electacta.2013.01.008

Cited by 103 publications

(51 citation statements)

References 26 publications

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“…In addition, as identified by SEM and TEM analysis, the porous Co 3 O 4 microrods consisted of interconnected nanoparticles and inter-particle pores. During the lithiation-delithiation processes, the porous architectures of Co 3 O 4 microrods have better structural flexibility for volume change, leading to the enhanced electrochemical performance as anode material for LIBs [5,24].…”

Section: Resultsmentioning

confidence: 99%

“…In particular, in situ technology has been developed to observe directly the electrochemical behavior of the electrode materials in order to reveal their reaction mechanism [3,4]. Transition metal oxides are promising anode materials for LIBs owing to their high theoretical capacities and volumetric energy densities [5][6][7]. However, their applications have been hampered by the poor capacity retention upon cycling due to large volume expansion and severe particle aggregation during the Li ?…”

Section: Introductionmentioning

confidence: 99%

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Ultrasound-assisted synthesis of porous Co3O4 microrods and their lithium-storage properties

Xie

et al. 2014

Appl. Phys. A

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Porous Co 3 O 4 microrods have been prepared by an ultrasound-assisted route with subsequent calcination. The as-prepared Co 3 O 4 microrods are composed of interconnected nanoparticles with porous characteristics. The ultrasonic irradiation is critical to determine the morphology and the electrochemical performance of the products. When tested as anode material for lithium-ion battery, the porous Co 3 O 4 microrods show improved capacity and rate cycling performance. The reversible capacity of the materials retains 678 (±5) mAh g -1 after 50 cycles at 100 mA g -1 . Even when cycled at various rate for more than 50 cycles, the reversible capacity recovers to 600 (±5) mAh g -1 for the current of 100 mA g -1 . The improved lithium-storage performance can be attributed to the reduced electrochemical reaction resistance due to the unique porous architecture of Co 3 O 4 microrods.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Ultrasound-assisted synthesis of porous Co3O4 microrods and their lithium-storage properties

Xie

et al. 2014

Appl. Phys. A

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“…Among TMOs, NiO has recently attracted much attention owing to its excellent electrochemical properties. In particular, it has high theoretical capacity (718 mA h g -1 ), high safety, low cost, and environmental benignity, which can be considered as a promising anode material for LIBs [9][10][11]. However, like other TMOs, the application of NiO as a practical electrode material is still hindered by its low ionic/electronic conductivity and large volume expansion during the charge/discharge processes [12,13].…”

Section: Introductionmentioning

confidence: 99%

Facile fabrication of hierarchically porous NiO microspheres as anode materials for lithium ion batteries

Zheng

Zhang

2016

J Mater Sci: Mater Electron

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In this work, we report a novel and facile route for the large-scale fabrication of hierarchically porous NiO microspheres, which involves the thermal decomposition of b-Ni(OH) 2 precursor at 450°C in air for 2 h. The superstructures exhibit high specific surface area, large porous volume, and broad pore size distribution. The electrochemical properties of the hierarchically porous NiO microspheres were examined by cyclic voltammetry and galvanostatic charge/discharge studies. The results demonstrate that the hierarchically porous NiO microspheres are promising anode materials with enhanced lithium storage capacity and excellent cycling stability. The hierarchically porous NiO microspheres can retain a reversible capacity of 612 mA h g -1 after 50 cycles at a current density of 100 mA g -1 . The improved electrochemical performance is attributed to their hierarchical structure and large amounts of mesopores within the nanosheets, which can effectively improve structural stability, reduce the diffusion length for lithium ions and electrons, and buffer volume expansion during the charge/ discharge processes.

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“…The excellent performance of the NiCoO 2 /rGO/NiCoO 2 electrode on storage of lithium is even rare in recent reports of the same kind electrodes. 16,55,[64][65][66][70][71][72][73][74][75] EIS measurements were carried out at frequencies from 100 kHz to 0.01 Hz on both as-prepared electrodes. As shown in Fig.…”

Section: G Wang Et Al: How To Improve the Stability And Rate Performentioning

confidence: 99%

How to improve the stability and rate performance of lithium-ion batteries with transition metal oxide anodes

et al. 2016

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The lithium ion battery is the most promising battery candidate to power battery electric vehicles. For these vehicles to be competitive with those powered by conventional internal combustion engines, significant improvements in battery performance are needed, especially in the energy density and power delivery capabilities. Promising substitutes for graphite as the anode material include silicon, tin, germanium, and various metal oxides that have much higher theoretical storage capacities and operated at slightly higher and safer potentials. In this critical review, metal oxides-based materials for lithium ion battery anodes are reviewed in detail together with the progress which is made in my lab on that topic. Their advantages, disadvantages, and performance in lithium ion batteries are discussed through extensive analysis of the literature, and new trends in materials development are also reviewed. Two important future research directions are proposed and performed in my lab, based on results published in the literature: the development of composite and nanostructured metal oxides to overcome the major challenge posed by the high capacity of metal oxide anodes.

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Facile synthesis of porous NiO hollow microspheres and its electrochemical lithium-storage performance

Cited by 103 publications

References 26 publications

Ultrasound-assisted synthesis of porous Co3O4 microrods and their lithium-storage properties

Ultrasound-assisted synthesis of porous Co3O4 microrods and their lithium-storage properties

Facile fabrication of hierarchically porous NiO microspheres as anode materials for lithium ion batteries

How to improve the stability and rate performance of lithium-ion batteries with transition metal oxide anodes

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