Highly dispersed ultra-small nano Sn-SnSb nanoparticles anchored on N-doped graphene sheets as high performance anode for sodium ion batteries

Lu, Yonglai; Jayapal, M. R.; Cheng, Xinli; Zhang, Tingting; Chen, Junfeng; Ma, Xiaoyan; Dai, Xin; Lu, Haiqin; Guan, Rongfeng; Zhang, Wenhui

doi:10.1016/j.apsusc.2020.145686

Cited by 173 publications

(80 citation statements)

References 62 publications

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“…Benefitting from the advantages of the SnS–Sn/MCNTs@CFs film structure, the film shows excellent life span of cyclic performance. Our work is compared with previously reported studies, − as shown in Figure a,b. At a high current density of 1 A g –1 (Figure a), compared with the previously reported anode electrode materials for SIBs, our SnS–Sn/MCNTs@CFs film shows superior specific capacity, cycle stability, and long cycle life.…”

Section: Resultsmentioning

confidence: 65%

Self-Standing Film Assembled using SnS–Sn/Multiwalled Carbon Nanotubes Encapsulated Carbon Fibers: A Potential Large-Scale Production Material for Ultra-stable Sodium-Ion Battery Anodes

Sun

Yang

Shi

et al. 2021

ACS Appl. Mater. Interfaces

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High-energy sodium-ion batteries have a significant prospective application as a next-generation energy storage technology. However, this technology is severely hindered by the lack of large-scale production of battery materials. Herein, a self-standing film, assembled with SnS–Sn/multiwalled carbon nanotubes encapsulated in carbon fibers (SnS–Sn/MCNTs@CFs), is prepared using ball milling and electrospinning techniques and used as sodium-ion battery anodes. To compensate the poor internal conductivity of SnS–Sn nanoparticles, MCNTs are used to interweave SnS–Sn nanoparticles to improve the conductivity. Moreover, the designed three-dimensional carbon fiber conductive network can effectively shorten the diffusion path of electron/Na+, accelerate the reaction kinetics, and provide abundant active sites for sodium absorption. Benefiting from these unique features, the self-standing film offers a high reversible capacity of 568 mA h g–1 at 0.1 A g–1 and excellent cycling stability at 1 A g–1 with a reversible capacity of 359.3 mA h g–1 after 1000 cycles. In the sodium-ion full cell device, the capacity is stable at 283.7 mA h g–1 after 100 cycles at a current of 100 mA g–1. This work provides a new strategy for electrode design and facilitates the large-scale application of the sodium-ion battery.

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Section: Resultsmentioning

confidence: 65%

Self-Standing Film Assembled using SnS–Sn/Multiwalled Carbon Nanotubes Encapsulated Carbon Fibers: A Potential Large-Scale Production Material for Ultra-stable Sodium-Ion Battery Anodes

Sun

Yang

Shi

et al. 2021

ACS Appl. Mater. Interfaces

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“…These results show that the carbon structure in graphene can be reorganized into a more ordered structure only by adding hydrochloric acid and a cobalt source at 120 °C in the reaction process without increasing the hydrothermal temperature and subsequent high-temperature annealing treatment. It should be noted that some metal ions such as cobalt are very effective catalysts for carbon atom reforming. , The content of C–S in the carbon structure for 7% Co-SnS 2 /S@r-G is about 3.6%. It is known that doping with a small amount of heteroatom S can effectively improve both the electronic conductivity and sodium-ion storage performance for carbon materials .…”

Section: Resultsmentioning

confidence: 83%

“…It should be noted that some metal ions such as cobalt are very effective catalysts for carbon atom reforming. 25,26 The content of C−S in the carbon structure for 7% Co-SnS 2 /S@r-G is about 3.6%. It is known that doping with a small amount of heteroatom S can effectively improve both the electronic conductivity and sodium-ion storage performance for carbon materials.…”

Section: Resultsmentioning

confidence: 99%

Dual Enhancement of Sodium Storage Induced through Both S-Compositing and Co-Doping Strategies

Sun

et al. 2021

ACS Appl. Mater. Interfaces

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As a promising alternative to lithium-ion batteries (LIBs), rechargeable sodium-ion batteries (SIBs) are attracting enormous attention due to the abundance of sodium. However, the lack of high-performance sodium anode materials limits the commercialization of SIBs. In this work, the dual enhancement of SnS 2 /graphene anodes in sodium storage is achieved through Scompositing and Co doping via an innovative one-step hydrothermal reaction at a relatively low temperature of 120 °C. The asprepared 7% Co-SnS 2 /S@r-G composite consisting of 15.4 wt % S and 1.49 atom % Co shows both superior cycling stability (over 1000 cycles) and rate capability, giving high reversible specific capacities of 878, 608, and 470 mAh g −1 at 0.2, 5, and 10 A g −1 , respectively. More encouragingly, the full-cell also exhibits an outstanding long-term cycling performance under 0.5 A g −1 , which delivers a reversible capacity of 500 mAh g −1 over 200 cycles and still retains a high reversible capacity of 432 mAh g −1 over 400 cycles. The enhancement mechanism is attributed to the favorable three-dimensional structure of the composite, Co doping, and Scomposition, which can induce a synergistic effect.

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“…The TGA curve shows that the weight loss occurs mainly between 410°C and 620°C, which is caused by the oxidation of graphene and carbon, basically consistent with the previously reported results. [22] To reveal the advantages of SnSb/3D-rNGO as a SIB anode, a series of electrochemical tests in a voltage range of 0.001-3 V (vs. Na + /Na) are carried out. The cyclic voltammogram (CV) in Figure 4a indicates a reduction peak of the initial scan appear at 0.95 V, and vanished in the subsequent scan, implying the formation of solid electrolyte interphase (SEI) film.…”

Section: Resultsmentioning

confidence: 99%

The Dual Capacity Contribution Mechanism of SnSb‐Anchored Nitrogen‐Doped 3D Reduced Graphene Oxide Enhances the Performance of Sodium‐Ion Batteries

et al. 2020

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Nanoscale SnSb alloys exhibit lower expansion rates and outstanding electrochemical properties, owing to the synergy between Sn and Sb for anode materials of sodium-ion batteries. However, nanomaterials with a high surface energy tend to aggregate and form larger secondary particles, limiting their further application. Herein, SnSb nanoparticles are prepared and distributed in three-dimensional networks of N-doped reduced graphene oxide (3D-rNGO), which plays a crucial role in inhibiting the agglomeration of SnSb nanoparticles, thereby promoting the capacitive contribution of surface drive. More importantly, the three-dimensional structure has a high specific surface area and the active region introduced by N doping can contact and adsorb more sodium ions as part of the electrochemical behavior, making the SnSb/3D-rNGO anode not only contribute capacity through a diffusion process, but also provide a capacitive contribution through a surface-driven mechanism. The results of the electrochemical analysis showed that SnSb/3D-rNGO, as the anode of a sodium-ion battery, exhibits a high specific capacity of 1169.6 mAh g À 1 , a reversible capacity of 55 % at 0.1 C, and maintains a capacity of 479.3 mAh g À 1 after 200 cycles. It is suitable for energy storage precisely because of the double capacity contribution mechanism.

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Highly dispersed ultra-small nano Sn-SnSb nanoparticles anchored on N-doped graphene sheets as high performance anode for sodium ion batteries

Cited by 173 publications

References 62 publications

Self-Standing Film Assembled using SnS–Sn/Multiwalled Carbon Nanotubes Encapsulated Carbon Fibers: A Potential Large-Scale Production Material for Ultra-stable Sodium-Ion Battery Anodes

Self-Standing Film Assembled using SnS–Sn/Multiwalled Carbon Nanotubes Encapsulated Carbon Fibers: A Potential Large-Scale Production Material for Ultra-stable Sodium-Ion Battery Anodes

Dual Enhancement of Sodium Storage Induced through Both S-Compositing and Co-Doping Strategies

The Dual Capacity Contribution Mechanism of SnSb‐Anchored Nitrogen‐Doped 3D Reduced Graphene Oxide Enhances the Performance of Sodium‐Ion Batteries

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