Synergistically enhanced LiF–rich protective layer for highly stable silicon anodes

Lee, Dongsoo; Lee, Seungho; Soo Jung, Dae; Chul Roh, Kwang; Seo, Jihoon; Kim, Junghwan; Kim, Kwanghyun; Joohyun Kim, Patrick; Choi, Junghyun

doi:10.1016/j.apsusc.2024.160023

Applied Surface Science

2024

DOI: 10.1016/j.apsusc.2024.160023

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Synergistically enhanced LiF–rich protective layer for highly stable silicon anodes

Dongsoo Lee,

Seungho Lee,

Dae Soo Jung

et al.

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2024

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Cited by 2 publications

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Effect of improved dispersibility of an MWCNT conductive material by oxyfluorination on the electrochemical performance of SiOx/C-based electrodes for lithium-ion batteries

Kim,

Lim,

Myeong

et al. 2024

Carbon Lett.

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Effect of improved dispersibility of an MWCNT conductive material by oxyfluorination on the electrochemical performance of SiOx/C-based electrodes for lithium-ion batteries

Kim,

Lim,

Myeong

et al. 2024

Carbon Lett.

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Synthesis Methods of Si/C Composite Materials for Lithium-Ion Batteries

Park,

Lee,

Chae

2024

Batteries

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Silicon anodes present a high theoretical capacity of 4200 mAh/g, positioning them as strong contenders for improving the performance of lithium-ion batteries. Despite their potential, the practical application of Si anodes is constrained by their significant volumetric expansion (up to 400%) during lithiation/delithiation, which leads to mechanical degradation and loss of electrical contact. This issue contributes to poor cycling stability and hinders their commercial viability, and various silicon–carbon composite fabrication methods have been explored to mitigate these challenges. This review covers key techniques, including ball milling, spray drying, pyrolysis, chemical vapor deposition (CVD), and mechanofusion. Each method has unique benefits; ball milling and spray drying are effective for creating homogeneous composites, whereas pyrolysis and CVD offer high-quality coatings that enhance the mechanical stability of silicon anodes. Mechanofusion has been highlighted for its ability to integrate silicon with carbon materials, showing the potential for further optimization. In light of these advancements, future research should focus on refining these techniques to enhance the stability and performance of Si-based anodes. The optimization of the compounding process has the potential to enhance the performance of silicon anodes by addressing the significant volume change and low conductivity, while simultaneously addressing cost-related concerns.

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Synergistically enhanced LiF–rich protective layer for highly stable silicon anodes

Cited by 2 publications

References 53 publications

Effect of improved dispersibility of an MWCNT conductive material by oxyfluorination on the electrochemical performance of SiOx/C-based electrodes for lithium-ion batteries

Effect of improved dispersibility of an MWCNT conductive material by oxyfluorination on the electrochemical performance of SiOx/C-based electrodes for lithium-ion batteries

Synthesis Methods of Si/C Composite Materials for Lithium-Ion Batteries

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