A functional silicon composite polymer electrolyte with hydrofluoric acid scavenging for quasi-solid-state lithium metal batteries

Zhao, Li; Yang, Li; Cheng, Yu; Zhang, Hong; Du, Lulu; Peng, Wei; Abdelmaoula, Ahmed Eissa; Xu, Lin

doi:10.1039/d4ta01849d

J. Mater. Chem. A

2024

DOI: 10.1039/d4ta01849d

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A functional silicon composite polymer electrolyte with hydrofluoric acid scavenging for quasi-solid-state lithium metal batteries

Li Zhao,

Li Yang,

Yu Cheng

et al.

Abstract: A functional composite polymer electrolyte (FCPE) containing Si nanoparticles can prevent the growth of lithium dendrites in quasi-solid-state batteries by reacting with HF and H2O to form a protective LiF-rich layer on the lithium metal surface.

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Cited by 2 publications

References 38 publications

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Covalently Anchoring an Ultrathin Conformal SiO_x Coating on Polyolefin Separator for Enhanced Lithium Metal Battery Performance

Zhang,

Lu,

Jin

et al. 2024

Adv Funct Materials

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Surface modification of separators with inorganic oxide ceramics such as SiOx, Al2O3, and TiO2 has emerged as a promising strategy to suppress lithium dendrite growth in lithium metal batteries, thereby enhancing safety and extending battery life. However, the binder‐dependent nature of these modifications often leads to increased separator thickness and a heightened risk of detachment during lithium plating, ultimately compromising both battery performance and energy density. In this study, a conformal, ultrathin (≈20 nm) SiOx coating with strong covalent bonding is grown on a porous separator through a liquid polymer‐derived method. Compared to the pristine polyethylene (PE) separators, this SiOx‐co‐PE separator exhibits significantly improved electrolyte wettability, mechanical strength, and thermal stability without any increase in thickness, leading to vastly enhanced cycling stability and dendrite resistance in cells with Li metal anodes. In a practical demonstration, a 402.9 Wh·kg−1 Li‐S pouch cell, with a high sulfur loading of 9 mg cm−2 and a low E/S ratio of 3.3 µL mg−1, is assembled with the SiOx‐co‐PE separator, achieving stable cycling over 70 cycles at 25 °C.

show abstract

Covalently Anchoring an Ultrathin Conformal SiO_x Coating on Polyolefin Separator for Enhanced Lithium Metal Battery Performance

Zhang,

Lu,

Jin

et al. 2024

Adv Funct Materials

View full text Add to dashboard Cite

show abstract

Bioinspired design of vascularized glassy metal-organic frameworks electrolyte for quasi-solid-state sodium batteries

Yan,

Liu,

et al. 2025

Energy Storage Materials

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A functional silicon composite polymer electrolyte with hydrofluoric acid scavenging for quasi-solid-state lithium metal batteries

Abstract: A functional composite polymer electrolyte (FCPE) containing Si nanoparticles can prevent the growth of lithium dendrites in quasi-solid-state batteries by reacting with HF and H2O to form a protective LiF-rich layer on the lithium metal surface.

Cited by 2 publications

References 38 publications

Covalently Anchoring an Ultrathin Conformal SiO_x Coating on Polyolefin Separator for Enhanced Lithium Metal Battery Performance

Covalently Anchoring an Ultrathin Conformal SiO_x Coating on Polyolefin Separator for Enhanced Lithium Metal Battery Performance

Bioinspired design of vascularized glassy metal-organic frameworks electrolyte for quasi-solid-state sodium batteries

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A functional silicon composite polymer electrolyte with hydrofluoric acid scavenging for quasi-solid-state lithium metal batteries

Abstract: A functional composite polymer electrolyte (FCPE) containing Si nanoparticles can prevent the growth of lithium dendrites in quasi-solid-state batteries by reacting with HF and H2O to form a protective LiF-rich layer on the lithium metal surface.

Cited by 2 publications

References 38 publications

Covalently Anchoring an Ultrathin Conformal SiOx Coating on Polyolefin Separator for Enhanced Lithium Metal Battery Performance

Covalently Anchoring an Ultrathin Conformal SiOx Coating on Polyolefin Separator for Enhanced Lithium Metal Battery Performance

Bioinspired design of vascularized glassy metal-organic frameworks electrolyte for quasi-solid-state sodium batteries

Contact Info

Product

Resources

About

Covalently Anchoring an Ultrathin Conformal SiO_x Coating on Polyolefin Separator for Enhanced Lithium Metal Battery Performance

Covalently Anchoring an Ultrathin Conformal SiO_x Coating on Polyolefin Separator for Enhanced Lithium Metal Battery Performance