Graphene anchored with mesoporous NiO nanoplates as anode material for lithium-ion batteries

Qiu, Danfeng; Xu, Zheng; Zheng, Mingbo; Zhao, Bin; Pan, Lijia; Peng, Lin; Shi, Yi

doi:10.1007/s10008-011-1466-9

Cited by 55 publications

(46 citation statements)

References 19 publications

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“…Composites of NiO with graphene have been synthesized to increase the conductivity, and thus the rate capability. Some of these composites [521][522][523][524][525] did not achieved better rate capability than the best results obtained for instance in [513] on nanopous films. Recent graphene/ NiO composites, however, reached the goal.…”

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confidence: 56%

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Anodes for Li-Ion Batteries

et al. 2016

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Lithium-ion batteries (LiBs) have made considerable progress since the first commercial one by Sony in 1991, which had LiCoO 2 and graphite as active elements of the positive and negative electrodes, respectively. The LiBs are now the primary energy storage devices in the transportation and communications, from portable use in computers, up to electric and hybrid vehicles. More recently, they have also been used as back-up supply units, frequency regulators (load leveling) to integrate on smart grids the electricity produced by windmills and photovoltaic plants (for a recent review, see [1]). These applications require high energy densities, high power, and safety among others. Considerable efforts have been made to propose other electrodes to fulfill these requirements. We have recently reviewed the works and progress concerning the materials for the positive electrode [2][3][4][5][6]. The present work is devoted to the materials for the negative electrode counterpart. It is common to use the terminology anode and cathode for the negative and positive electrodes, respectively, although the electrodes play alternatively the role of anode and cathode during the charge and discharge process. We shall use this terminology in the following for conciseness purposes only.An ideal active anode element should fulfill the following requirements as follows: (1) It must be light and accommodate as much Li as possible to optimize the gravimetric capacity. (2) Its redox potential with respect to Li 0 /Li + must be as small as possible at any Li-concentration. The reason is that this potential is subtracted to the redox potential of the cathode material to give the overall voltage of the cell, and smaller voltage means smaller energy density. (3) It must possess good electronic and ionic conductivities since faster motion of the lithium ions and the electrons also mean higher power density of the cell. (4) It must not be soluble in the solvents of the electrolyte and not react with the lithium salt. (5) It must be safe, i.e. avoid any thermal runaway of the battery, a criterion that is not independent of the previous one, but deserves special attention, especially for use in transportation such as electric vehicles and planes. (6) It must be cheap and environmentally friendly. The different materials proposed as anode elements for Li-ion batteries must be discussed with respect to these different criteria.The graphite is still the most used anode material and is still the reference. The first works giving evidence of the insertion of lithium in graphite date from 1955 [7], confirmed by the synthesis of LiC 6 in 1965 [8]. The synthesis of LiC 6 , however, was not obtained by electrochemical process at that time. Another decade was spent before Besenhard and Eichinger discovered the reversible intercalation of lithium in graphite, proposing this material as an anode in 1976 [9,10]. Increasing the Li content in LiC 6 is possible [8], but no reversible cycling beyond LiC 6 could ever be obtained. The graphite anode can thus be cyc...

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confidence: 56%

“…To our knowledge, these are the best results obtained with CuO-based anodes. Other CuO/graphene composites that have been synthesized did not have this rate capability [525,544].…”

Section: Cuomentioning

confidence: 98%

Anodes for Li-Ion Batteries

et al. 2016

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“…13 To overcome these obstacles, one common strategy is to prepare MnO 2 nanocomposites within a carbon matrix, which can act as both a conductive network increasing the electrical conductivity and a volume buffer to alleviate internal stress. 14,15,16,17,18 The use of three-dimensional (3D)…”

Section: Introductionmentioning

confidence: 99%

Manganese dioxide-anchored three-dimensional nitrogen-doped graphene hybrid aerogels as excellent anode materials for lithium ion batteries

et al. 2015

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The capacity of manganese dioxide (MnO 2 ) deteriorates with cycling due to the irreversible changes induced by the repeated lithiation and delithiation processes. To overcome this drawback, MnO 2 /nitrogen-doped graphene hybrid aerogels (MNGAs) were prepared via a facile redox process between KMnO 4 and carbon within nitrogen-doped graphene hydrogels. The three-dimensional nitrogen-doped graphene hydrogels were prepared and utilized as matrices for MnO 2 deposition. The MNGAs-120 obtained after a deposition time of 120 min delivered a very high discharge capacity of 909 mA h g -1 after 200 cycles at a current density of 400 mA g -1 , in sharp contrast to only 280 and 70 mA h g -1 delivered from nitrogen-doped graphene aerogels and MnO 2 . This discharge capacity is superior to that of the previously reported MnO 2 /carbon based hybrid materials. This material also exhibited an excellent rate capability and cycling performance. Its superior electrochemical performance can be ascribed to the synergistic interaction between uniformly dispersed MnO 2 particles with high capacity and the conductive three-dimensional nitrogen-doped graphene network with a large surface area and an interconnected porous structure. Tel.: +86 10 8254 5576. E-mail: hanbh@nanoctr.cn.Tel.: +61 2 4221 3127. E-mail: gwallace@uow.edu.au. AbstractThe capacity of manganese dioxide (MnO 2 ) deteriorates with cycling due to the irreversible changes induced by the repeated lithiation and delithiation processes. To overcome this drawback, MnO 2 /nitrogen-doped graphene hybrid aerogels (MNGAs) were prepared via a facile redox process between KMnO 4 and carbon within nitrogen-doped graphene hydrogels. The three-dimensional nitrogen-doped graphene hydrogels were prepared and utilized as matrices for MnO 2 deposition. The MNGAs-120 obtained after a deposition time of 120 min delivered a very high discharge capacity of 909 mA h g -1 after 200 cycles at a current density of 400 mA g -1 , in sharp contrast to only 280 and 70 mA h g -1 delivered from nitrogen-doped graphene aerogels and MnO 2 . This discharge capacity is superior to that of the previously reported MnO 2 /carbon based hybrid materials. This material also exhibited an excellent rate capability and cycling performance.Its superior electrochemical performance can be ascribed to the synergistic interaction between uniformly dispersed MnO 2 particles with high capacity and the conductive three-dimensional nitrogen-doped graphene network with a large surface area and interconnected porous structure.

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“…[1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16] Nanocrystals grown on graphene possess an enhanced electron transport rate, high electrolyte contact area and structural stability, all of which are useful for Li-cycling. 1,8 Controlling the morphologies of the nanocrystals on the surface of the graphene sheets and rationalizing the nanocrystal growth behavior is of course crucial to improve the electrochemical performance of the hybrid material, 3 and remains a great challenge.…”

Section: Introductionmentioning

confidence: 99%

“…1,8 Controlling the morphologies of the nanocrystals on the surface of the graphene sheets and rationalizing the nanocrystal growth behavior is of course crucial to improve the electrochemical performance of the hybrid material, 3 and remains a great challenge. Although a variety of nanocrystals with di®erent structures decorated on graphene sheets has been fabricated, [1][2][3][15][16][17][18] it still remains a great challenge. As one of the most important functional materials, Ni(OH) 2 has been widely studied.…”

Section: Introductionmentioning

confidence: 99%

Chiseled Nickel Hydroxide Nanoplates Growth on Graphene Sheets for Lithium Ion Batteries

Tian

Wei

Zhuang

et al. 2013

NANO

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The morphologies and structures of Ni(OH) 2 -graphene hybrid materials were tailored by using di®erent mineralizers in this work. It was revealed that the synergic e®ects of the highly oxidized graphene sheets and the mineralizers played a crucial role in controlling the morphology and structure of the nanocomposites, and Na 2 CO 3 is a very e®ective mineralizer for growing chiseled 2D nanoplates of Ni(OH) 2 on graphene sheets. When produced with NaOH, fragmental Ni(OH) 2 crystals with irregular shapes erratically decorated on graphene sheets. In contrast, chiseled Ni (OH) 2 hexagonal nanoplates grown on graphene sheets were obtained when Na 2 CO 3 was used as the mineralizer. These unique 2D-2D nanoarchitectures with higher contact area between the nanocrystals and graphene substrate can increase the interfacial interaction and then e±ciently improve the structural stability of the composite material, thus exhibiting an enhanced Li storage capacity and excellent cycling performance of 562 mAh g À1 after the 36th cycle.

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Graphene anchored with mesoporous NiO nanoplates as anode material for lithium-ion batteries

Cited by 55 publications

References 19 publications

Anodes for Li-Ion Batteries

Anodes for Li-Ion Batteries

Manganese dioxide-anchored three-dimensional nitrogen-doped graphene hybrid aerogels as excellent anode materials for lithium ion batteries

Chiseled Nickel Hydroxide Nanoplates Growth on Graphene Sheets for Lithium Ion Batteries

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