Sb/N‐Doped Carbon Nanofiber as a Sodium‐Ion Battery Anode

Gu, Yan; Cui, Rong; Wang, Guoyong; Yang, Chun Cheng; Jiang, Qing

doi:10.1002/ente.202200746

Cited by 6 publications

(2 citation statements)

References 62 publications

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“…Sodium-ion batteries (SIBs) are excellent substitutes for lithiumion batteries owing to its alluring advantages such as low price, high voltage, and abundant resources. [1][2][3][4][5] At the cell level, creating thick electrodes are getting more and more attention as an effective mean of achieving high energy density for batteries. [6,7] Currently, the coating method is mostly used for making the battery electrodes.…”

Section: Introductionmentioning

confidence: 99%

Laser Etching Post‐Processing to Create Low‐Tortuosity Structured Electrodes for Advanced Sodium‐Ion Batteries

Huang,

Zhang,

Yuan

et al. 2024

Energy Tech

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Constructing low‐tortuosity structure is a facile and effective strategy to significantly improve the electrochemical performances of thick electrodes of batteries. In this study, the low‐tortuosity structured electrodes with an array grooved structure are fabricated using a method of laser etching post‐processing, promoting excellent electrochemical performance of sodium‐ion batteries (SIBs). The effects of laser post‐processing parameters including the etching shape, interval, and scan number on the structures and electrochemical performances of the prepared electrodes are investigated. Results show that the array grooved structures of the laser‐treated electrodes not only reduce the tortuosity to enhance the ion transfer efficiency, but also provide extra space to accommodate more electrolyte, which helps strengthen the electrochemical reaction kinetics of the electrodes. The proposed electrode with a parallelogram etching shape, an interval of 0.1 mm, and a scan number of 10 can produce a high rate capacity of 120.7 mAh g−1 at 500 mA g−1 and an outstanding cycle performance with a high capacity maintenance rate of 97.8% after 200 cycles. This study validates a new method to create low‐tortuosity electrodes for SIBs by optimizing the process parameter, which can be potentially extended to the fabrication of other advanced energy storage devices.

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Section: Introductionmentioning

confidence: 99%

Laser Etching Post‐Processing to Create Low‐Tortuosity Structured Electrodes for Advanced Sodium‐Ion Batteries

Huang,

Zhang,

Yuan

et al. 2024

Energy Tech

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show abstract

“…Bi and Sb can be alloyed in any molar ratio, so Bi-Sb alloy allows for flexible composition design. However, like other alloy-type anode materials, Bi-Sb alloy still suffers from a rapid capacity decline due to a volume change of 250–390% during repeated alloying/dealloying processes [ 22 , 23 , 24 , 25 ], especially at high current densities. Additionally, the electronic conductivity of Bi is relatively poor, further limiting the rate performance of Bi-Sb alloy.…”

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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Modulating p-d orbital hybridization by CuO/Cu nanoparticles enables carbon nanofibers high cycling stability as anode for sodium storage

Zhang,

Sun,

Chen

et al. 2023

Rare Met.

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Sb/N‐Doped Carbon Nanofiber as a Sodium‐Ion Battery Anode

Cited by 6 publications

References 62 publications

Laser Etching Post‐Processing to Create Low‐Tortuosity Structured Electrodes for Advanced Sodium‐Ion Batteries

Laser Etching Post‐Processing to Create Low‐Tortuosity Structured Electrodes for Advanced Sodium‐Ion Batteries

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

Modulating p-d orbital hybridization by CuO/Cu nanoparticles enables carbon nanofibers high cycling stability as anode for sodium storage

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