articleAdvanced Energy MaterialsFeb 17, 2025Closed access

High‐Performance Silicon Anodes Enabled by Multifunctional Ultrafine Silica Nanoparticle‐Embedded Carbon Coatings for Lithium‐Ion Batteries

ZSZhefei SunQYQuanzhi YinSZShenghui ZhouHCHaoyu ChenSWSifan Wen

Xiamen University · Tan Kah Kee Innovation Laboratory · +4 more institutions

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Abstract

Abstract Silicon (Si) holds immense promise as viable anode for next‐generation high‐energy‐density Li‐ion batteries (LIBs). However, its poor ionic/electronic conductivity and significant volumetric changes during cycling lead to rapidly deteriorated LIB performance. Here, a novel multifunctional coating featuring ultrafine SiO 2 nanoparticles (<7 nm) embedded carbon on Si nanoparticles (termed Si@uSiO 2 ‐C) to resolve these challenges is proposed. This unique uSiO 2 ‐C coating provides high‐efficient electron and ion transport pathways, while also improves interfacial stability and mitigates volume changes during cycling, thereby enhancing the conductivity and structural integrity of Si@uSiO 2 ‐C, as…

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90
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FWCI
51.61
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100%
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60
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15

Topics & keywords

Topics
Keywords
  • Materials science
  • Anode
  • Lithium (medication)
  • Silicon
  • Nanoparticle
  • Nanoarchitectures for lithium-ion batteries
  • Carbon fibers
  • Ion
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