Flexible Sb/Sb2O3-C nanofibers as binder-free anodes for high-performance and stable sodium-ion batteries

Zhang, Lifeng; Song, Yifei; Hu, Yunfeng; Ruan, Huan; Bai, Jiaxi; Li, Shuai; Liu, Yi; Guo, Shouwu

doi:10.1016/j.jallcom.2021.161913

Cited by 21 publications

(12 citation statements)

References 47 publications

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“…Meanwhile, these peaks appear in Si@C-Gel at 284.6, 285.6, and 288.9 eV, respectively. Besides that, according to the N 1s spectra (Figure S4c,f), pyridine N (397.7 eV/398.0 eV), pyrrole N (399.8 eV/400.4 eV), and graphitic N (402.9 eV/403.1 eV) are present in Si@C-PAM and Si@C-Gel. , …”

Section: Resultsmentioning

confidence: 92%

“…Besides that, according to the N 1s spectra (Figure S4c,f), pyridine N (397.7 eV/398.0 eV), pyrrole N (399.8 eV/400.4 eV), and graphitic N (402.9 eV/ 403.1 eV) are present in Si@C-PAM and Si@C-Gel. 51,52 The Si@C-PAM material is employed as the anode in LIBs to evaluate the electrochemical properties. The CV data were collected at 0.1 mV s −1 , as shown in Figure 4a, and the cathodic sweeps below 0.20 V indicate those deduced from the formation of Si alloying.…”

Section: Resultsmentioning

confidence: 99%

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Spatially Confined Silicon Nanoparticles Anchored in Porous Carbon as Lithium-Ion-Battery Anode Materials

Ruan

Zhang

et al. 2022

ACS Appl. Nano Mater.

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Spatial confinement of silicon (Si) within carbonaceous materials has been regarded as the typical strategy to solve the pulverization and capacity decay of the Si-based electrodes for lithium-ion batteries. However, the uneven distribution of Si particles in the carbon (C) matrix often diminishes the full benefits of Si/C composites to cause instability of the capacity and rate properties. Herein, we fabricate polyacrylamide (PAM) hydrogelderived porous C with a unique gridding structure to encapsulate the Si particles. The as-fabricated Si@C-PAM electrode with a satisfactory capacity of 1019 mAh g −1 at 0.5 A g −1 after 100 cycles. Even at a current density of 1.0 A g −1 , Si@C-PAM still delivers a superior specific capacity of 589 mAh g −1 after 300 cycles with good capacity retention (89%). The fast and stable lithiation/delithiation of Si@C-PAM is attributed to the dense and unobstructed gridding architecture, which offers numerous ion channels for fast charge transfer and seals the Si core sufficiently to accommodate the large volume change. In practical applications, the full-cell LiFePO 4 / Si@C-PAM also exhibits well reversible capacity. Furthermore, the proposed method provides a good example for many other electrode materials suffering from similar problems.

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Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 99%

Spatially Confined Silicon Nanoparticles Anchored in Porous Carbon as Lithium-Ion-Battery Anode Materials

Ruan

Zhang

et al. 2022

ACS Appl. Nano Mater.

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“…Moreover, Sb/Sb 2 O 3 -C nanofiber films were fabricated via the electrospinning technique and carbonization, where Sb/Sb 2 O 3 nanoparticles were well embedded in carbon fiber. The 3D network fiber structure provided an efficient electron/ion transport pathway, thus exhibiting high specific capacity and long lifetime with the retention value of 385.6 mAh g –1 over 500 cycles …”

Section: Conversion-alloying Anode Materialsmentioning

confidence: 99%

“…The 3D network fiber structure provided an efficient electron/ion transport pathway, thus exhibiting high specific capacity and long lifetime with the retention value of 385.6 mAh g −1 over 500 cycles. 238 6.2. Sulfides.…”

Section: Conversion-alloying Anode Materialsmentioning

confidence: 99%

Advanced Anode Materials for Rechargeable Sodium-Ion Batteries

et al. 2023

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Rechargeable sodium-ion batteries (SIBs) have been considered as promising energy storage devices owing to the similar "rocking chair" working mechanism as lithium-ion batteries and abundant and low-cost sodium resource. However, the large ionic radius of the Na-ion (1.07 Å) brings a key scientific challenge, restricting the development of electrode materials for SIBs, and the infeasibility of graphite and silicon in reversible Na-ion storage further promotes the investigation of advanced anode materials. Currently, the key issues facing anode materials include sluggish electrochemical kinetics and a large volume expansion. Despite these challenges, substantial conceptual and experimental progress has been made in the past. Herein, we present a brief review of the recent development of intercalation, conversion, alloying, conversion-alloying, and organic anode materials for SIBs. Starting from the historical research progress of anode electrodes, the detailed Na-ion storage mechanism is analyzed. Various optimization strategies to improve the electrochemical properties of anodes are summarized, including phase state adjustment, defect introduction, molecular engineering, nanostructure design, composite construction, heterostructure synthesis, and heteroatom doping. Furthermore, the associated merits and drawbacks of each class of material are outlined, and the challenges and possible future directions for high-performance anode materials are discussed.

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“…The high-quality development of the energy storage industry has become an essential part in the era of carbon neutrality. Lithium-ion batteries (LIBs) have dominated the e-market in the past decades due to their high energy density and widespread use in electric vehicles and electronic equipment. − However, limited by the lithium resource’s insufficient reserves, exorbitant price, and regional distribution, LIBs are incapable of meeting the rising demand for the efficient storage of renewables in an economical way. − Meanwhile, the element sodium, which is abundant, inexpensive, and chemically similar to lithium, has attracted the attention of researchers, and then, sodium-ion batteries (SIBs) are recognized as the most potential substitute to LIBs. − Nevertheless, the larger radius of Na + ion and its heavier atomic mass than that of Li + ion ( r Na+ = 0.102 nm / r Li+ = 0.076 nm ; m Na = 22.99 g/mol / m Li = 6.94 g/mol ) make it difficult to be inserted into commercial graphite anodes. − Therefore, it is highly anticipated to explore high-capacity anode and cathode materials to boost the next generation of high=specific energy SIBs. Accordingly, metal antimony (Sb) is deemed a potential anode material for the high-energy density SIBs owing to its high theoretical specific capacity (∼660 mAh g –1 ) and medium operating voltage (0.5–0.8 V vs Na + /Na). − However, the excessive volume expansion in the process of charging (Sb → Na 3 Sb: 390%) and discharging usually leads to the crushing and collapse of the fabricated electrodes as well as the weakening of the electrical contact.…”

Section: Introductionmentioning

confidence: 99%

Hexagonal Sb Nanocrystals as High-Capacity and Long-Cycle Anode Materials for Sodium-Ion Batteries

Zhang

Chen

et al. 2023

ACS Appl. Mater. Interfaces

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Antimony (Sb) is regarded as a promising anode material for sodium ion batteries (SIBs) on account of its high theoretical specific capacity (∼660 mAh g–1) and low cost. However, the large volume expansion (∼390%) during charging has inhibited its practical application. Herein, hexagonal Sb nanocrystals encapsulated by P/N-co-doped carbon nanofibers (Sb@P-N/C) were prepared using a low-cost but mass-produced electrospinning method. The as-prepared Sb@P-N/C, used as anode material for SIBs, exhibits unexpected cycling stability and rate capability, with 500.1 mAh g–1 at 50 mA g–1 after 200 cycles and 295.6 mAh g–1 at 500 mA g–1 after 400 cycles. Especially, the full battery fabricated by Na (Ni1/3Fe1/3Mn1/3) O2 || Sb@P-N/C possesses a reversible specific capacity of 66.8 mAh g–1 at 50 mA g–1 over 60 cycles. This simple and low-cost fabrication technology combined with unique crystal morphology offers new strategies for the advancement of sodium ion batteries (SIBs) in energy storage and electrical transportation.

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Flexible Sb/Sb2O3-C nanofibers as binder-free anodes for high-performance and stable sodium-ion batteries

Cited by 21 publications

References 47 publications

Spatially Confined Silicon Nanoparticles Anchored in Porous Carbon as Lithium-Ion-Battery Anode Materials

Spatially Confined Silicon Nanoparticles Anchored in Porous Carbon as Lithium-Ion-Battery Anode Materials

Advanced Anode Materials for Rechargeable Sodium-Ion Batteries

Hexagonal Sb Nanocrystals as High-Capacity and Long-Cycle Anode Materials for Sodium-Ion Batteries

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