Sb/C composite embedded in SiOC buffer matrix via dispersion property control for novel anode material in sodium-ion batteries

Park, Jeong-Eun; Kim, Minjun; Choi, Minsu; Ku, Minkyeong; Kam, Dayoung; Kim, Sang‐Ok; Choi, Wonchang

doi:10.1016/j.jpowsour.2023.232908

Cited by 6 publications

(2 citation statements)

References 87 publications

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“…In this regard, silicon oxycarbide (SiOC) has recently attracted attention owing to its superior mechanical stability and high theoretical capacity (∼750 mA h g −1 ). 23,24 It is a ceramic material with an amorphous tetrahedral phase, which contributes to the high reversible capacity by simultaneously bonding carbon and oxygen to silicon, and has the advantage of high conductivity owing to the randomly existing free carbon domain. 25 In addition, SiOC is more elastic than the carbonbased material, and unlike silicon anodes, the volume expansion is relatively small; therefore, SiOC is effective as a buffer material to function as the mechanical support.…”

Section: Introductionmentioning

confidence: 99%

Hydrophobic dispersion-derived Si/rGO nanocomposites in SiOC ceramic matrix as anode materials for high performance lithium-ion batteries

Park

Kim

et al. 2023

J. Mater. Chem. A

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Section: Introductionmentioning

confidence: 99%

Hydrophobic dispersion-derived Si/rGO nanocomposites in SiOC ceramic matrix as anode materials for high performance lithium-ion batteries

Park

Kim

et al. 2023

J. Mater. Chem. A

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“…Metals such as bismuth (Bi) and antimony (Sb) can store Na ions in a highly reversible alloying manner. This results in a low sodiation potential (<1.0 V vs. Na/Na + ) and high theoretical capacity (385 and 660 mAh g −1 ) [ 15 , 16 , 17 ]. Therefore, the two metals are recognized as potential anode materials for SIBs.…”

Section: Introductionmentioning

confidence: 99%

Bismuth-Antimony Alloy Nanoparticles Embedded in 3D Hierarchical Porous Carbon Skeleton Film for Superior Sodium Storage

Wang,

Lin,

et al. 2023

Molecules

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A composite film that features bismuth–antimony alloy nanoparticles uniformly embedded in a 3D hierarchical porous carbon skeleton is synthesized by the polyacrylonitrile-spreading method. The dissolved polystyrene is used as a soft template. The average diameter of the bismuth–antimony alloy nanoparticles is ~34.5 nm. The content of the Bi-Sb alloy has an impact on the electrochemical performance of the composite film. When the content of the bismuth–antimony alloy is 45.27%, the reversible capacity and cycling stability of the composite film are the best. Importantly, the composite film outperforms the bismuth–antimony alloy nanoparticles embedded in dense carbon film and the cube carbon nanobox in terms of specific capacity, cycling stability, and rate capability. The composite film can provide a discharge capacity of 322 mAh g−1 after 500 cycles at 0.5 A g−1, 292 mAh g−1 after 500 cycles at 1 A g−1, and 185 mAh g−1 after 2000 cycles at 10 A g−1. The carbon film prepared by the spreading method presents a unique integrated composite structure that significantly improves the structural stability and electronic conductivity of Bi-Sb alloy nanoparticles. The 3D hierarchical porous carbon skeleton structure further enhances electrolyte accessibility, promotes Na+ transport, increases reaction kinetics, and buffers internal stress.

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Double-enhanced core-shell Sb@Sb2O3 heterostructure encapsulated in porous carbon for long life sodium storage

Yang,

Lu,

Wang

et al. 2024

Colloids and Surfaces A: Physicochemical and Engineering Aspect

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Sb/C composite embedded in SiOC buffer matrix via dispersion property control for novel anode material in sodium-ion batteries

Cited by 6 publications

References 87 publications

Hydrophobic dispersion-derived Si/rGO nanocomposites in SiOC ceramic matrix as anode materials for high performance lithium-ion batteries

Hydrophobic dispersion-derived Si/rGO nanocomposites in SiOC ceramic matrix as anode materials for high performance lithium-ion batteries

Bismuth-Antimony Alloy Nanoparticles Embedded in 3D Hierarchical Porous Carbon Skeleton Film for Superior Sodium Storage

Double-enhanced core-shell Sb@Sb2O3 heterostructure encapsulated in porous carbon for long life sodium storage

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