Sb-doped Li10GeP2S12-type electrolyte Li10SnP2-xSbxS12 with enhanced ionic conductivity and lower lithium-ion migration barrier

Wang, Qingtao; Li, Dongxu; Ma, Xuefang; Liu, Qian; Zhou, Xiaozhong; Lei, Ziqiang

doi:10.1016/j.jcis.2022.07.124

Cited by 15 publications

(4 citation statements)

References 31 publications

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“…Wang et al noticed likewise that antimony did not affect the (SnS 4 ) 4− and (PS 4 ) 3− vibration in the Raman spectrum for the substitution series Li 10 SnP 2− x Sn x S 12 . 25…”

Section: Resultsmentioning

confidence: 99%

“…However, the broadening of the unit cell has been suggested to be beneficial for ionic conductivity reaching a maximum of 2.43 mS cm −1 for Li 10 SnP 1.8 Sb 0.2 S 12 . 25 Kato et al investigated the Li 10 (Ge 1− x M x )P 2 S 12 substitution series with M = Si and Sn finding that the conductivity is a function of the unit cell volume peaking at Li 10 GeP 2 S 12 and declining to Li 10 SiP 2 S 12 and Li 10 SnP 2 S 12 . 26 Structural in-depth investigations of the substitution series Li 10 Ge 1− x Sn x S 12 by Krauskopf et al revealed that a shortened S(3)–S(3) distance and an inductive effect are both detrimental to the conductivity.…”

Section: Introductionmentioning

confidence: 99%

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Investigating the Li⁺substructure and ionic transport in Li₁₀GeP_2−xSb_xS₁₂(0 ≤x≤ 0.25)

Helm

Gronych

Banik

et al. 2023

Phys. Chem. Chem. Phys.

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“…Wang et al noticed likewise that antimony did not affect the (SnS 4 ) 4− and (PS 4 ) 3− vibration in the Raman spectrum for the substitution series Li 10 SnP 2− x Sn x S 12 . 25…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigating the Li⁺substructure and ionic transport in Li₁₀GeP_2−xSb_xS₁₂(0 ≤x≤ 0.25)

Helm

Gronych

Banik

et al. 2023

Phys. Chem. Chem. Phys.

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“…Notably, the Ge–S bonds in LGPS demonstrate slightly superior stability because of their stronger interaction between the Ge ion (soft acid) and the S ion (soft base). Therefore, a necessity arises for partial or complete substitution/doping of the P contents in LGPS SSEs with other elements such as As and Sb to attain moisture/air stability. , Recently, Li 3 Cu 8 Ge 3 S 12 SSE design based on the HSAB theory showed good moisture stability, and the core drawback is a lower Li-ion conductivity of ∼1 × 10 –4 S cm –1 . A balance between these trade-offs is still crucial when maximizing the chemical stability and ionic conductivity of SSEs for practical application.…”

Section: Introductionmentioning

confidence: 99%

A Functional Air-Stable Li_9.8GeP_1.7Sb_0.3S_11.8I_0.2 Superionic Conductor for High-Performance All-Solid-State Lithium Batteries

Fan,

Tufail,

Zeng

et al. 2024

ACS Appl. Mater. Interfaces

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Solid-state electrolytes (SSEs) based on sulfides have become a subject of great interest due to their superior Li-ion conductivity, low grain boundary resistance, and adequate mechanical strength. However, they grapple with chemical instability toward moisture hypersensitivity, which decreases their ionic conductivity, leading to more processing requirements. Herein, a Li 9.8 GeP 1.7 Sb 0.3 S 11.8 I 0.2 (LGPSSI) superionic conductor is designed with a Li + conductivity of 6.6 mS cm -1 and superior air stability based on hard and soft acids and bases (HSAB) theory. The introduction of optimal antimony (Sb) and iodine (I) into the Li 10 GeP 2 S 12 (LGPS) structure facilitates fast Li-ion migration with low activation energy (E a ) of 20.33 kJ mol −1 . The higher air stability of LGPSSI is credited to the strategic substitution of soft acid Sb into (Ge/P)S 4 tetrahedral sites, examined by Raman and X-ray photoelectron spectroscopy techniques. Relatively lower acidity of Sb compared to phosphorus (P) realizes a stronger Sb−S bond, minimizing the evolution of toxic H 2 S (0.1728 cm 3 g −1 ), which is ∼3 times lower than pristine LGPS when LGPSSI is exposed to moist air for 120 min. The NCA//Li−In full cell with a LGPSSI superionic conductor delivered the first discharge capacity of 209.1 mAh g −1 with 86.94% Coulombic efficiency at 0.1 mA cm −2 . Furthermore, operating at a current density of 0.3 mA cm −2 , LiNbO 3 @NCA/LGPSSI/Li−In cell demonstrated an exceptional reversible capacity of 117.70 mAh g −1 , retaining 92.64% of its original capacity over 100 cycles.

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“…Comparison of voltage profiles of symmetrical lithium cells with conventional LSPS electrolyte and its modification with antimony sulfide -Li 10 SnP 1.8 Sb 0.2 S 12 . (b)-(d) demonstrates the enlarged parts of the graph at the corresponding time 68.…”

mentioning

confidence: 99%

Review—Recent Advancements in Sulfide Solid Electrolytes for All-Solid-State Lithium-Sulfur Batteries

Pilyugina,

Kuzmina,

Kolosnitsyn

2024

ECS J. Solid State Sci. Technol.

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This review gives a detailed overview of the challenges in using sulfide solid electrolytes in all-solid-state lithium-sulfur batteries and discusses strategies to overcome them. First, the general description of the synthetic procedure of the sulfide solid electrolytes is given, including descriptions of the potential ways for improvement of the electrolyte properties, such as ionic conductivity and air and moisture resistance. This is followed by a review of the polymer binders and matrices that can enhance the sulfide solid electrolytes mechanical strength. Subsequently, the ways to ensure the chemical stability on the anode-solid electrolyte interface are described. Finally, prototypes of the all-solid-state Li-S batteries, created by using the combination of all above-mentioned methods, are discussed.

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Sb-doped Li10GeP2S12-type electrolyte Li10SnP2-xSbxS12 with enhanced ionic conductivity and lower lithium-ion migration barrier

Cited by 15 publications

References 31 publications

Investigating the Li⁺substructure and ionic transport in Li₁₀GeP_2−xSb_xS₁₂(0 ≤x≤ 0.25)

Investigating the Li⁺substructure and ionic transport in Li₁₀GeP_2−xSb_xS₁₂(0 ≤x≤ 0.25)

A Functional Air-Stable Li_9.8GeP_1.7Sb_0.3S_11.8I_0.2 Superionic Conductor for High-Performance All-Solid-State Lithium Batteries

Review—Recent Advancements in Sulfide Solid Electrolytes for All-Solid-State Lithium-Sulfur Batteries

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Sb-doped Li10GeP2S12-type electrolyte Li10SnP2-xSbxS12 with enhanced ionic conductivity and lower lithium-ion migration barrier

Cited by 15 publications

References 31 publications

Investigating the Li+substructure and ionic transport in Li10GeP2−xSbxS12(0 ≤x≤ 0.25)

Investigating the Li+substructure and ionic transport in Li10GeP2−xSbxS12(0 ≤x≤ 0.25)

A Functional Air-Stable Li9.8GeP1.7Sb0.3S11.8I0.2 Superionic Conductor for High-Performance All-Solid-State Lithium Batteries

Review—Recent Advancements in Sulfide Solid Electrolytes for All-Solid-State Lithium-Sulfur Batteries

Contact Info

Product

Resources

About

Investigating the Li⁺substructure and ionic transport in Li₁₀GeP_2−xSb_xS₁₂(0 ≤x≤ 0.25)

Investigating the Li⁺substructure and ionic transport in Li₁₀GeP_2−xSb_xS₁₂(0 ≤x≤ 0.25)

A Functional Air-Stable Li_9.8GeP_1.7Sb_0.3S_11.8I_0.2 Superionic Conductor for High-Performance All-Solid-State Lithium Batteries