Tailoring composite gel polymer electrolytes with regularly arranged pores and silica particles for sodium metal batteries <i>via</i> breath-figure self-assembly

Kwon, Da-Sol; Jeong, Daun; Kang, Hyun Beom; Chang, Wonyoung; Bang, Joona; Shim, Jimin

doi:10.1039/d3ta06300c

J. Mater. Chem. A

2024

DOI: 10.1039/d3ta06300c

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Tailoring composite gel polymer electrolytes with regularly arranged pores and silica particles for sodium metal batteries via breath-figure self-assembly

Da-Sol Kwon,

Daun Jeong,

Hyun Beom Kang

et al.

Abstract: This study presents a novel method for fabricating composite gel polymer electrolytes through breath-figure self-assembly for Na metal batteries.

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2024

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Cited by 2 publications

References 62 publications

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Raining-inspired method for construction of porous film material

Wang,

Pan,

Lian

et al. 2024

Giant

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Raining-inspired method for construction of porous film material

Wang,

Pan,

Lian

et al. 2024

Giant

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Silica-Poly(Vinyl Alcohol) Composite Aerogel: A Promising Electrolyte for Solid-State Sodium Batteries

Vareda,

Fonseca,

Ribeiro

et al. 2024

Gels

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The transition from fossil fuels is in part limited by our inability to store energy at different scales. Batteries are therefore in high demand, and we need them to store more energy, be more reliable, durable and have less social and environmental impact. Silica-poly(vinyl alcohol) (PVA) composite aerogels doped with sodium perchlorate were synthesized as novel electrolytes for potential application in solid-state sodium batteries. The aerogels, synthesized by one-pot synthesis, are light (up to 214 kg m−3), porous (~85%), exhibit reduced shrinkage on drying (up to 12%) and a typical silica aerogel microstructure. The formation of a silica network and the presence of PVA and sodium perchlorate in the composite were confirmed by FTIR and TGA. The XRD analysis also shows that a predominantly amorphous structure is obtained, as crystalline phases of polymer and salt are present in a very reduced amount. The effects of increasing polymer and sodium salt concentrations on the ionic conductivity, assessed via electrochemical impedance spectroscopy, were studied. At a PVA concentration of 15% (w/w silica precursors), the sodium conduction improved significantly up to (1.1 ± 0.3) × 10−5 S cm−1. Thus, this novel material has promising properties for the envisaged application.

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Tailoring composite gel polymer electrolytes with regularly arranged pores and silica particles for sodium metal batteries via breath-figure self-assembly

Abstract: This study presents a novel method for fabricating composite gel polymer electrolytes through breath-figure self-assembly for Na metal batteries.

Cited by 2 publications

References 62 publications

Raining-inspired method for construction of porous film material

Raining-inspired method for construction of porous film material

Silica-Poly(Vinyl Alcohol) Composite Aerogel: A Promising Electrolyte for Solid-State Sodium Batteries

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