Solvent-free and low temperature synthesis of chalcogenide Na superionic conductors for solid-state batteries

Halacoglu, Selim; Yang, Li; Arnold, William A.; Shreyas, Varun; Guo, Xiaolin; Jasiński, Jacek B.; Narayanan, Badri; Wang, Hui

doi:10.1016/j.cej.2023.143624

Cited by 5 publications

(2 citation statements)

References 63 publications

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“…Beyond 10 wt % NSSE in SCEs, further increasing the ceramic content decreases the ionic conductivity, which is probably due to the aggregation of NSSE particles and the blocking of Na-ion transport . Notably, all NSSE-SCE samples show higher ionic conductivity than the polymer electrolyte although lower than that of pure NSSE …”

Section: Results and Discussionmentioning

confidence: 95%

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Ultrathin Sulfide/PVDF-HFP Composite Electrolyte for Solid-State Sodium Metal Batteries

Guo,

Li,

Wang

2024

ACS Appl. Energy Mater.

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Rechargeable solid-state sodium batteries that utilize solid electrolytes (SEs) have garnered considerable attention due to their enhanced safety and abundant sodium resources. Solid composite electrolytes (SCEs) that disperse the fine ceramic particles in a polymer matrix provide a viable approach to addressing these challenges. Nevertheless, intensive efforts have been devoted to inorganic oxide-based conductors, while the studies on SCEs with sulfide-based Na-ion conductors are rarely reported. In this work, we report the preparation of ultrathin, flexible, and stable SCE with adjustable thickness (20–65 μm) by embedding microsized Na3SbS3Se (NSSE) particles in a polymer (PVDF-HFP) matrix. NSSE-SCE exhibits the highest ionic conductivity of 1.31 × 10–4 S cm–1 at room temperature, one order higher than that of a polymer electrolyte. In addition, the critical current density (CCD) for a 20 μm NSSE-SCE membrane is estimated to be 1.1 mA cm–2. The assembled Na|SCE|TiS2 solid-state batteries with the smallest thickness demonstrate the best electrochemical performance, which delivers a discharge capacity of 182 mA h g–1 and shows stable cycling up to 300 cycles, as well as great rate performance. This work presents a solid composite electrolyte with sulfide-based Na-ion conductors and contributes to the development of solid-state Na metal batteries.

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Section: Results and Discussionmentioning

confidence: 95%

“…The Na 3 SbS 3 Se (NSSE) powder was synthesized by a solvent-free and low-temperature heating method . The produced NSSE powder was further ball-milled to obtain fine powder.…”

Section: Methodsmentioning

confidence: 99%

Ultrathin Sulfide/PVDF-HFP Composite Electrolyte for Solid-State Sodium Metal Batteries

Guo,

Li,

Wang

2024

ACS Appl. Energy Mater.

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A simple approach through reduction of Na2SO4 to prepare high-purity Na2S for sulfide electrolytes toward all-solid-state sodium batteries

Yan,

Guo,

Zheng

et al. 2024

Journal of Power Sources

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A quasi-zero-strain layered Nb₄P₂S₂₁ cathode for high-energy solid-state polymer Na–metal batteries

Tu,

Peng,

Wang

et al. 2024

Inorg. Chem. Front.

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Solvent-free and low temperature synthesis of chalcogenide Na superionic conductors for solid-state batteries

Cited by 5 publications

References 63 publications

Ultrathin Sulfide/PVDF-HFP Composite Electrolyte for Solid-State Sodium Metal Batteries

Ultrathin Sulfide/PVDF-HFP Composite Electrolyte for Solid-State Sodium Metal Batteries

A simple approach through reduction of Na2SO4 to prepare high-purity Na2S for sulfide electrolytes toward all-solid-state sodium batteries

A quasi-zero-strain layered Nb₄P₂S₂₁ cathode for high-energy solid-state polymer Na–metal batteries

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Solvent-free and low temperature synthesis of chalcogenide Na superionic conductors for solid-state batteries

Cited by 5 publications

References 63 publications

Ultrathin Sulfide/PVDF-HFP Composite Electrolyte for Solid-State Sodium Metal Batteries

Ultrathin Sulfide/PVDF-HFP Composite Electrolyte for Solid-State Sodium Metal Batteries

A simple approach through reduction of Na2SO4 to prepare high-purity Na2S for sulfide electrolytes toward all-solid-state sodium batteries

A quasi-zero-strain layered Nb4P2S21 cathode for high-energy solid-state polymer Na–metal batteries

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A quasi-zero-strain layered Nb₄P₂S₂₁ cathode for high-energy solid-state polymer Na–metal batteries