Improved electrochemical performance of yolk-shell structured SnO 2 @void@C porous nanowires as anode for lithium and sodium batteries

Li, H.Z.; Luo, Yang; Liu, Jie; Li, S.T.; Fang, Laibing; Lü, Yan; Yang, Hyung Ryul; Liu, S.L.; Liu, Ming

doi:10.1016/j.jpowsour.2016.06.011

Cited by 101 publications

(37 citation statements)

References 54 publications

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“…These developed nanostructures include nanotubes, nanowires, nanoboxes, hollow nanospheres, nanosheets, nanocubes, nanofibers, and nanoflowers, etc., all of which display improved cycling stability and rate capability due to their clever structural design and nanoscale dimensions. Recently, much more research works have been focused on introducing a carbon layer on the SnO 2 nanostructures, which can significantly enhance the cycling performance owing to the synergistic effect of the carbon layer and the clever structures . For example, Lou and co‐workers have designed and synthesized the uniform N‐doped carbon‐coated SnO 2 sub‐microboxes using Fe 2 O 3 sub‐microcubes as removable templates .…”

Section: Introductionmentioning

confidence: 99%

Large‐Scale Fabrication of Core–Shell Structured C/SnO₂ Hollow Spheres as Anode Materials with Improved Lithium Storage Performance

Cheng

Wang

et al. 2017

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Due to the high theoretical capacity as high as 1494 mAh g , SnO is considered as a potential anode material for high-capacity lithium-ion batteries (LIBs). Therefore, the simple but effective method focused on fabrication of SnO is imperative. To meet this, a facile and efficient strategy to fabricate core-shell structured C/SnO hollow spheres by a solvothermal method is reported. Herein, the solid and hollow structure as well as the carbon content can be controlled. Very importantly, high-yield C/SnO spheres can be produced by this method, which suggest potential business applications in LIBs field. Owing to the dual buffer effect of the carbon layer and hollow structures, the core-shell structured C/SnO hollow spheres deliver a high reversible discharge capacity of 1007 mAh g at a current density of 100 mA g after 300 cycles and a superior discharge capacity of 915 mAh g at 500 mA g after 500 cycles. Even at a high current density of 1 and 2 A g , the core-shell structured C/SnO hollow spheres electrode still exhibits excellent discharge capacity in the long life cycles. Consideration of the superior performance and high yield, the core-shell structured C/SnO hollow spheres are of great interest for the next-generation LIBs.

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Section: Introductionmentioning

confidence: 99%

Large‐Scale Fabrication of Core–Shell Structured C/SnO₂ Hollow Spheres as Anode Materials with Improved Lithium Storage Performance

Cheng

Wang

et al. 2017

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“…Compared with other reported Sn-based anode materials and MoS 2 anode materials (see Ta ble S6 in the SupportingI nformation), it is cleart hat Sn-MoS 2 -C microspheres are ap romising anode choice for SIBs. [48][49][50][51][52][53][54][55][56][57][58]…”

Section: Resultsmentioning

confidence: 99%

Sn‐MoS₂‐C@C Microspheres as a Sodium‐Ion Battery Anode Material with High Capacity and Long Cycle Life

Zheng

Pan

Yang

et al. 2017

Chemistry A European J

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Sodium ion batteries (SIBs) have been regarded as a prime candidate for large-scale energy storage, and developing high performance anode materials is one of the main challenges for advanced SIBs. Novel structured Sn-MoS -C@C microspheres, in which Sn nanoparticles are evenly embedded in MoS nanosheets and a thin carbon film is homogenously engineered over the microspheres, have been fabricated by the hydrothermal method. The Sn-MoS -C@C microspheres demonstrate an excellent Na-storage performance as an anode of SIBs and deliver a high reversible charge capacity (580.3 mAh g at 0.05 Ag ) and rate capacity (580.3, 373, 326, 285.2, and 181.9 mAh g at 0.05, 0.5, 1, 2, and 5 Ag , respectively). A high charge specific capacity of 245 mAh g can still be achieved after 2750 cycles at 2 Ag , indicating an outstanding cycling performance. The high capacity and long-term stability make Sn-MoS -C@C composite a very promising anode material for SIBs.

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“…The reversible discharge capacities of NPC2 electrode after 100 cycles are maintained at 205 mA h g −1 , demonstrating good electrochemical performance of NPC2 electrode for SIBs. Similar to the LIBs, the high specific surface area and the hierarchically porous structure of NPC2 make an active surface accessible to the electrolyte and shortens the diffusion path for Na ions . The capacities of SIBs are lower than LIBs due to the much bigger atomic radius of sodium ion (Na + 1.02 Å vs Li + 0.59 Å), which leads to smaller discharge capacities due to poorer kinetics in SIBs compared to those in LIBs.…”

Section: Methodsmentioning

confidence: 99%

Poly(ionic liquid)‐Derived N‐Doped Carbons with Hierarchical Porosity for Lithium‐ and Sodium‐Ion Batteries

Alkarmo

Ouhib

Aqil

et al. 2018

Macromol. Rapid Commun.

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very recently also for sodium-ion batteries (SIBs). [7] The incorporation of N atoms favors some physical properties of NPCs by raising the overall electron density to enhance the electrochemical stability and charge mobility. [8] Furthermore, N dopant can carry surface functionality easily and a large number of defects to assist Li + or Na + insertion. [9,10] Meanwhile, pores in such a carbon matrix provide highways to Li + (or Na + ) diffusion and offer a large electrolyte-electrode interface for charge/ mass transfer, thus enhancing specific capacity and rate performance. [11] Last but not least, these pores act as an ion reservoir and provide space to buffer volume expansion during Li + or Na + insertion/ extraction to improve cycling stability. [12] In general, NPCs are produced by pyrolysis of N-containing compounds such as synthetic polymers, [13] organic salts, [14] fossil fuels, [15] and biomass. [16] In terms of synthetic polymers, such as phenolic resins, [17] their easy access and processing are the major factors to be considered. In addition, some monomers such as pyrrole [18] may require metal catalysts for poly merization, leading to concerns of metal contamination. Moreover, extents of doping and graphitization, which affect electric conductivity, are important and can affect which polymer precursors are chosen. For example, the inherent nature of "hard carbon" precursors such as furfuryl and alcohol sucrose gives low graphitization degree at temperatures below 1200 °C. [19] Numerous researchers in this field have confirmed that a broad range of properties of carbon materials depends on the chemical nature and morphology of the polymer precursors, [20][21][22] among which poly(ionic liquid)s (PILs) are an innovative class of carbon precursors. [23] In comparison to other polymers such as polyacrylonitrile, polypyrrole, and polydopamine, PILs possess several unique features. First, PILs present relatively high thermostability which leads to a high carbonization yield. [24] Second, they have diverse molecular structures carrying different heteroatoms such as nitrogen, boron, sulfur, or phosphorus, which broadens the heteroatom-doping scope. [25] Third, PILs are surface-active materials and are able to coat different surfaces (carbon, metal, or metal oxide). [26] Consequently, PIL-derived porous carbons can be flexibly designed in different morphologies such as spheres, nanotubes, and membranes, by templating or template-free methods. [27] Recently, we prepared NPC composites with a nanostructured porosity via pyrolysis of polypyrrole deposited Porous CarbonThe performance of lithium-and sodium-ion batteries relies notably on the accessibility to carbon electrodes of controllable porous structure and chemical composition. This work reports a facile synthesis of well-defined N-doped porous carbons (NPCs) using a poly(ionic liquid) (PIL) as precursor, and graphene oxide (GO)-stabilized poly(methyl methacrylate) (PMMA) nano particles as sacrificial template. The GO-stabilized PMMA nanoparticles are firs...

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Improved electrochemical performance of yolk-shell structured SnO 2 @void@C porous nanowires as anode for lithium and sodium batteries

Cited by 101 publications

References 54 publications

Large‐Scale Fabrication of Core–Shell Structured C/SnO₂ Hollow Spheres as Anode Materials with Improved Lithium Storage Performance

Large‐Scale Fabrication of Core–Shell Structured C/SnO₂ Hollow Spheres as Anode Materials with Improved Lithium Storage Performance

Sn‐MoS₂‐C@C Microspheres as a Sodium‐Ion Battery Anode Material with High Capacity and Long Cycle Life

Poly(ionic liquid)‐Derived N‐Doped Carbons with Hierarchical Porosity for Lithium‐ and Sodium‐Ion Batteries

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Improved electrochemical performance of yolk-shell structured SnO 2 @void@C porous nanowires as anode for lithium and sodium batteries

Cited by 101 publications

References 54 publications

Large‐Scale Fabrication of Core–Shell Structured C/SnO2 Hollow Spheres as Anode Materials with Improved Lithium Storage Performance

Large‐Scale Fabrication of Core–Shell Structured C/SnO2 Hollow Spheres as Anode Materials with Improved Lithium Storage Performance

Sn‐MoS2‐C@C Microspheres as a Sodium‐Ion Battery Anode Material with High Capacity and Long Cycle Life

Poly(ionic liquid)‐Derived N‐Doped Carbons with Hierarchical Porosity for Lithium‐ and Sodium‐Ion Batteries

Contact Info

Product

Resources

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Large‐Scale Fabrication of Core–Shell Structured C/SnO₂ Hollow Spheres as Anode Materials with Improved Lithium Storage Performance

Large‐Scale Fabrication of Core–Shell Structured C/SnO₂ Hollow Spheres as Anode Materials with Improved Lithium Storage Performance

Sn‐MoS₂‐C@C Microspheres as a Sodium‐Ion Battery Anode Material with High Capacity and Long Cycle Life