Ordered CoO/CMK-3 nanocomposites as the anode materials for lithium-ion batteries

Zhang, Haijiao; Tao, Haihua; Jiang, Yong; Jiao, Zheng; Wu, Minghong; Zhao, Bing

doi:10.1016/j.jpowsour.2009.11.003

Cited by 101 publications

(86 citation statements)

References 22 publications

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“…However, the R ct of NVP@rGO is much smaller than that of NVP-P/rGO, demonstrating that the layer-by-layer assembly of NVP@rGO provides more efficient electron/ion transport than that of the NVP-P/rGO due to the uniform dispersion of rGO and well contact between NVP and rGO matrices. [58][59][60] In order to further demonstrate the enhanced electrochemical performance for NVP@rGO composite, cyclic voltammetry (CV) was measured at different scan rates shown in Figure S18 of the Supporting Information. The NVP@rGO ( Figure S18a, Supporting Information) maintains the well-defined redox peaks completely even at a high scan rate of 6 mV s −1 in the range of 2.5-4.0 V. The current of NVP@rGO is the highest among the three samples, indicating its highest reversibility and fastest kinetics during electrochemical reaction.…”

Section: Resultsmentioning

confidence: 99%

Layer‐by‐Layer Na₃V₂(PO₄)₃ Embedded in Reduced Graphene Oxide as Superior Rate and Ultralong‐Life Sodium‐Ion Battery Cathode

Wei

et al. 2016

Advanced Energy Materials

306

160

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However, the limited lithium resource in earth is detrimental to the further application due to the possible increasing cost and unstable energy supply. [12][13][14][15] Therefore, there is an urgent demand for developing alternative energy storage devices with low cost while maintaining a comparable performance to LIBs. Among them, sodium-ion batteries (SIBs) have become the worldwide focus owing to abundant resources and low cost. [16][17][18][19] To develop high-performance SIBs, it remains challenging to discover/develop suitable electrode materials (especially cathode) to satisfy the requirement of long-term cycling stability and rate-capability.Owing to larger radius of Na + than that of Li + (0.98 vs 0.69 Å), various cathode materials with large open frameworks, including layered transitionmetal oxides [19][20][21][22][23][24][25] and polyanionic compounds, [2,13,18,[26][27][28][29][30][31][32][33] have been developed for (1) the improved sodium storage capacity, (2) the facilitated Na + diffusion in the lattice, and (3) the restricted structure degradation caused by Na + insertion/extraction. The NASICON (sodium (Na) super ion conductor) Na x M 2 (NO 4 ) 3 (M = transition metal, N = P 5+ , Si 4+ , S 6+ , and Mo 6+ ) structure with 3D large open framework allows for rapid and reversible ion diffusion in the lattice, which is now developed as electrode with promising electrochemical performance. [34] Among these, the Na 3 V 2 (PO 4 ) 3 (NVP) becomes a "shining star" with high sodium diffusion ability and remarkable high energy density (i.e., 400 Wh kg −1 ). [18] However, the high ionic diffusion ability of NVP is accompanied with poor electronic conductivity, [35] which results in the low utilization of active materials even at low rates. In order to obtain remarkable performance of NVP, the hurdles of poor rate capability and cycling stability need to be further addressed. Recently, carbon-coated active nanocrystals embedded in a porous carbon matrix, which demonstrated excellent rate performance and cycling stability for Li 3 V 2 (PO 4 ) 3 cathodes, [36,37] as well as for NVP cathodes. [38][39][40] In general, the porous carbon content is usually high, which may lead to the decrease of tap density and entire cell volumetric energy density. [41,42] Li and co-workers reported adaptive graphene gel films as a highly compact electrode with Na 3 V 2 (PO 4 ) 3 (NVP) is regarded as a promising cathode for advanced sodiumion batteries (SIBs) due to its high theoretical capacity and stable sodium (Na) super ion conductor (NASICON) structure. However, strongly impeded by its low electronic conductivity, the general NVP delivers undesirable rate capacity and fails to meet the demands for quick charge. Herein, a novel and facile synthesis of layer-by-layer NVP@reduced graphene oxide (rGO) nanocomposite is presented through modifying the surface charge of NVP gel precursor. The well-designed layered NVP@rGO with confined NVP nanocrystal in between rGO layers offers high electronic and ionic conductivity as well as sta...

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Section: Resultsmentioning

confidence: 99%

Layer‐by‐Layer Na₃V₂(PO₄)₃ Embedded in Reduced Graphene Oxide as Superior Rate and Ultralong‐Life Sodium‐Ion Battery Cathode

Wei

et al. 2016

Advanced Energy Materials

306

160

View full text Add to dashboard Cite

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“…Subsequently, the slurry was uniformly pasted on a pure copper foil followed by drying in a vacuum at 80 °C for 6 h. The electrochemical properties of the working electrodes were measured using two electrode CR2016 coin-type cells with lithium foil serving as both counter and reference electrodes under ambient temperature. The electrolyte was 7 1 M LiPF 6 solution in EC/DMC/EMC (ethylene carbonate/dimethyl carbonate/ethyl methyl carbonate, 1/1/1 (w/w/w). The cells were assembled in a glovebox full of argon with high purity.…”

Section: Electrochemical Measurementsmentioning

confidence: 99%

“…[4][5][6] In comparison to the commercial graphite carbon electrode with the theoretical value of 372 mAh g -1 , a variety of metal oxides and metal sulfides have been extensively employed in LIBs owing to their high theoretical capacities and ease of scaling up. [7,8] Among these materials, titanium dioxide (TiO 2 ) has been deemed as one of the ideal candidates as the anode material for LIBs because of its nontoxicity, low cost, small volume expansion (< 4%), and excellent intrinsic safety. [9][10][11][12] Moreover, TiO 2 family has many polymorphs mainly including well-known anatase, rutile and brookite, in which anatase is generally regarded as the most electroactive Li-insertion host.…”

Section: Introductionmentioning

confidence: 99%

Eco-friendly synthesis of rutile TiO2 nanostructures with controlled morphology for efficient lithium-ion batteries

Gao

Jiao

Wang

et al. 2016

Chemical Engineering Journal

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“…To date, transition metal oxides, such as iron oxide, nickel oxide, and cobalt oxide, have been widely studied as candidate anode materials for lithium ion batteries (LIBs) due to their ability to react with more than two Li + ions per formula unit, resulting in higher capacity than that of graphite [1][2][3][4][5][6]. Molybdenum dioxide (MoO 2 ), one of the transition metal oxides, is remarkably attractive as a host material for lithium ion storage.…”

Section: Introductionmentioning

confidence: 99%

MoO2/Mo2C/C spheres as anode materials for lithium ion batteries

Ihsan

Wang

Majid

et al. 2016

Carbon

102

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MoO2/Mo2C/C spheres have been synthesized through hydrothermal and calcination processes. MoO2 is well known for its high theoretical capacity of 838 mAh g-1, but undergoes capacity fading during Li+ insertion/extraction processes. Mo2C has high specific conductance (1.02 x 102 S cm-1) that can provide better electronic conductivity. Carbon is popular for its ability to accommodate the volume variation during charge/discharge. By taking advantage of the combination of Mo2C and C, these MoO2/Mo2C/C spheres demonstrate not only high cycling performance, but also good rate capability when they are used as anode materials for lithium ion batteries. After 100 cycles at 100 mA g-1, the discharge capacities of the MoO2/ Mo2C/C spheres remain at 800 mAh g-1, suggesting that MoO2/Mo2C/C spheres are promising candidates as anode material for lithium ion batteries. Disciplines Engineering | Physical Sciences and Mathematics Publication DetailsIhsan, M., Wang, H., Majid, S. R., Yang, J., Kennedy, S. J., Guo, Z. & Liu, H. Kun. (2016 AbstractMoO 2 /Mo 2 C/C spheres have been synthesized through hydrothermal and calcination processes. MoO 2 is well known for its high theoretical capacity of 838 mAh g -1 , but undergoes capacity fading during Li + insertion/extraction processes. Mo 2 C has high specific conductance (1.02 × 10 2 S cm -1 ) that can provide better electronic conductivity. Carbon is popular for its ability to accommodate the volume variation during charge/discharge. By taking advantage of the combination of Mo 2 C and C, these MoO 2 /Mo 2 C/C spheres demonstrate not only high cycling performance, but also good rate capability when they are used as anode materials for lithium ion batteries. After 100 cycles at 100 mA g -1 , the discharge capacities of the MoO 2 /Mo 2 C/C spheres remain at 800 mAh g -1 , suggesting that MoO 2 /Mo 2 C/C spheres are promising candidates as anode material for lithium ion batteries.

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Ordered CoO/CMK-3 nanocomposites as the anode materials for lithium-ion batteries

Cited by 101 publications

References 22 publications

Layer‐by‐Layer Na₃V₂(PO₄)₃ Embedded in Reduced Graphene Oxide as Superior Rate and Ultralong‐Life Sodium‐Ion Battery Cathode

Layer‐by‐Layer Na₃V₂(PO₄)₃ Embedded in Reduced Graphene Oxide as Superior Rate and Ultralong‐Life Sodium‐Ion Battery Cathode

Eco-friendly synthesis of rutile TiO2 nanostructures with controlled morphology for efficient lithium-ion batteries

MoO2/Mo2C/C spheres as anode materials for lithium ion batteries

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Ordered CoO/CMK-3 nanocomposites as the anode materials for lithium-ion batteries

Cited by 101 publications

References 22 publications

Layer‐by‐Layer Na3V2(PO4)3 Embedded in Reduced Graphene Oxide as Superior Rate and Ultralong‐Life Sodium‐Ion Battery Cathode

Layer‐by‐Layer Na3V2(PO4)3 Embedded in Reduced Graphene Oxide as Superior Rate and Ultralong‐Life Sodium‐Ion Battery Cathode

Eco-friendly synthesis of rutile TiO2 nanostructures with controlled morphology for efficient lithium-ion batteries

MoO2/Mo2C/C spheres as anode materials for lithium ion batteries

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Product

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Layer‐by‐Layer Na₃V₂(PO₄)₃ Embedded in Reduced Graphene Oxide as Superior Rate and Ultralong‐Life Sodium‐Ion Battery Cathode

Layer‐by‐Layer Na₃V₂(PO₄)₃ Embedded in Reduced Graphene Oxide as Superior Rate and Ultralong‐Life Sodium‐Ion Battery Cathode