Self-wrapped Sb/C nanocomposite as anode material for High-performance sodium-ion batteries

Duan, Jian; Zhang, Wei; Wu, Chao; Fan, Qingjie; Zhang, Wuxing; Hu, Xianluo; Huang, Yunhui

doi:10.1016/j.nanoen.2015.07.021

Cited by 141 publications

(59 citation statements)

References 45 publications

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“…Figure a presents the schematic of the lithiation for Sb nanoparticle. The large volume expansion is caused by Li‐ion insertion, which could pulverize the conductive network between Sb and the inactive current collector . In addition, Li‐ion insertion following with the heavy elastic strain reduces the kinetics of lithium compound formation and worsens the cyclic performance rapidly .…”

Section: Resultsmentioning

confidence: 81%

Structure‐Controllable Binary Nanoporous‐Silicon/Antimony Alloy as Anode for High‐Performance Lithium‐Ion Batteries

et al. 2018

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A binary nanoporous‐SixSb alloy is prepared successfully as electrode for lithium‐ion batteries (LIBs) by a one‐step chemical dealloying method. The sample morphology can be controlled by adjusting the content of Al and the molar ratio of Si and Sb in the alloy precursors. Structural and morphological characterizations reveal the presence of uniformly‐distributed nanopores which can effectively accommodate the volume change and provide massive diffusion channels for Li‐ions during charging/discharging. Electrochemical experiments show that the nanoporous Si15Sb15 (np‐Si15Sb15) anode can deliver excellent performance with a specific capacity of 647.40 mAh g−1 after 90 cycles at a current density of 100 mA g−1. This simple approach may be further extended to the design of novel nanoporous materials, providing a guideline for mass production of high‐performance electrochemical energy storage devices.

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Section: Resultsmentioning

confidence: 81%

Structure‐Controllable Binary Nanoporous‐Silicon/Antimony Alloy as Anode for High‐Performance Lithium‐Ion Batteries

et al. 2018

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“…As the XPS surveys show in Figure b,d, both Sb/C/G and Sb/C nanocomposites are composed of C, O, and Sb elements without any other impure elements. Figure c,e shows the fitting results of high‐resolution XPS spectra of O 1s and Sb 3d between 537 and 526 eV . It is revealed that Sb/C/G nanocomposite owns obviously stronger O peaks (OC and OC) compared to pristine Sb/C, which should be due to the addition of GO, one type of carbon with higher oxygen content than the LTA‐derived carbon.…”

Section: Resultsmentioning

confidence: 95%

Graphene Nanosheets Suppress the Growth of Sb Nanoparticles in an Sb/C Nanocomposite to Achieve Fast Na Storage

Lü

Wan

Li-hua

et al. 2016

Part & Part Syst Charact

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204 wileyonlinelibrary.com www.particle-journal.com www. MaterialsViews.com Presently, graphene incorporation is one of the most effective strategies to develop superior electrode materials for sodium-ion batteries (SIBs). Herein, it is excitingly found that an incorporated graphene nanosheet in the preparation processes can not only completely protect all the Sb nanoparticles in an Sb/C composite from being inactivated, but also suppresses their growth to undesirable micrometer size. While there are still many exposed Sb particulates on the surface of pristine Sb/C microplates, the graphene-incorporated Sb/C/G nanocomposite consists of uniform Sb nanoparticles of 20-50 nm, all of which have been protected by and wrapped in the mixed carbon network. When used as anode materials for SIBs, the Sb/C/G nanocomposite exhibits the best Nastorage properties in terms of the highest reversible capacity (650 mA h g −1 at 0.025 A g −1 ), fastest Na-storage ability (290 mA h g −1 at a high current density of 8 A g −1 ), and optimal cycling performance (no capacity decay after 200 cycles), in comparison to pristine Sb/C and pure Sb. It is further revealed that the much enhanced performance should originate from the improvement of Na-storage kinetics and increase of electronic conductivity via comparing the electrochemical impedance spectra, and cyclic voltammetry profi les, as well as the polarization variation along with current densities.electrode materials of SIBs with superior electrochemical properties, including high specifi c capacity, excellent high-rate performance, and long cycle life. For the SIBs, developing high-performance anode materials should be one of the most urgent research assignments, because the traditional graphite anode of LIBs can hardly achieve Na-storage. Presently, many anode materials have been proposed including carbonaceous materials with low degree of graphitization, [ 3 ] metallic alloys, [ 4 ] oxides and sulfi des, [ 5 ] and organic compounds. [ 6 ] Among those anode materials, alloying antimony (Sb) element has drawn great attention because of the low and suitable potentials for sodiation/desodiation and high theoretical Na-storage capacity (660 mA h g −1 ) corresponding to the formation of Na 3 Sb phase. Unfortunately, the severe volume expansion and contraction during sodiation and desodiation will lead to the undesirable pulverization of the whole electrode and hence the invalidation of electronic transport pathways, [ 7 ] which makes the common Sb material usually exhibit poor cycle stability, as well as unsatisfactory high-rate capabilities.In order to relieve the volumetric effects to enhance the Na-storage properties of Sb anode material, many strategies have been reported previously. The main ones include: i) preparing special nanostructures such as monodisperse Sb nanocrystals [ 8 ] and porous Sb hollow spheres, [ 9 ] ii) synthesizing Sb-containing alloys or their composites with low volume variation during Na-uptake/release cycles, e.g., Sn-Ge-Sb ternary alloy, [ 10 ] Sb/C...

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“…The carbon coating layer can facilitate the electronic transport throughout the whole electrode, improving the utilization efficiency of active Bi 2 S 3 materials. The PDA‐derived porous and nitrogen‐doped carbon itself also can provide active sites for Li‐storage . In addition, such a homogeneous soft carbon coating layer can protect the inner Bi 2 S 3 core from structural pulverization and destruction during repeated cycling, and also benefits the stability of solid/electrolyte interphase (SEI) film formed on electrode surface .…”

Section: Resultsmentioning

confidence: 99%

Submicrospherical and Porous Bi₂S₃ Protected by Nitrogen‐Doped Carbon for Practical Anode Fabrication of Li‐Ion Batteries

et al. 2020

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Research on alloy‐type anode materials with micro/submicrospherical morphology is of great significance for the development of high energy‐density Li‐ion batteries. A facile and cost‐effective route is adopted to prepare homogeneous submicrospherical and porous Bi2S3@nitrogen‐doped carbon (NC) nanocomposites, which exhibit considerably better Li‐storage performance than pure Bi2S3 and Bi2O3 submicrospheres. Analyses on the electrochemical behavior and morphology of the electrode show that the good performance of Bi2S3@NC can be correlated with its stable submicrospherical structure and decreased charge‐transfer resistance, for which the NC coating layer and porous interior of Bi2S3 are supposed to be the two main contributors. The submicrospherical structure and facile synthesis of Bi2S3@NC will be very suitable for practical electrode fabrication technology of Li‐ion batteries.

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Self-wrapped Sb/C nanocomposite as anode material for High-performance sodium-ion batteries

Cited by 141 publications

References 45 publications

Structure‐Controllable Binary Nanoporous‐Silicon/Antimony Alloy as Anode for High‐Performance Lithium‐Ion Batteries

Structure‐Controllable Binary Nanoporous‐Silicon/Antimony Alloy as Anode for High‐Performance Lithium‐Ion Batteries

Graphene Nanosheets Suppress the Growth of Sb Nanoparticles in an Sb/C Nanocomposite to Achieve Fast Na Storage

Submicrospherical and Porous Bi₂S₃ Protected by Nitrogen‐Doped Carbon for Practical Anode Fabrication of Li‐Ion Batteries

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Self-wrapped Sb/C nanocomposite as anode material for High-performance sodium-ion batteries

Cited by 141 publications

References 45 publications

Structure‐Controllable Binary Nanoporous‐Silicon/Antimony Alloy as Anode for High‐Performance Lithium‐Ion Batteries

Structure‐Controllable Binary Nanoporous‐Silicon/Antimony Alloy as Anode for High‐Performance Lithium‐Ion Batteries

Graphene Nanosheets Suppress the Growth of Sb Nanoparticles in an Sb/C Nanocomposite to Achieve Fast Na Storage

Submicrospherical and Porous Bi2S3 Protected by Nitrogen‐Doped Carbon for Practical Anode Fabrication of Li‐Ion Batteries

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Submicrospherical and Porous Bi₂S₃ Protected by Nitrogen‐Doped Carbon for Practical Anode Fabrication of Li‐Ion Batteries