Air-stable iodized-oxychloride argyrodite sulfide and anionic swap on the practical potential window for all-solid-state lithium-metal batteries

Taklu, Bereket Woldegbreal; Nikodimos, Yosef; Bezabh, Hailemariam Kassa; Lakshmanan, Keseven; Hagos, Teklay Mezgebe; Nigatu, Teshome Assefa; Merso, Semaw Kebede; Sung, Hung-Yi; Yang, Sheng‐Chiang; Wu, She‐Huang; Su, Wei‐Nien; Hwang, Bing‐Joe

doi:10.1016/j.nanoen.2023.108471

Cited by 20 publications

(12 citation statements)

References 49 publications

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“…For LBS reduction, we scanned between 0 and 1.8 V. There, the reduction starts at 1.3 V (Figure d). Therefore, the electrochemical stability window of LBS is 1.3–2.5 V. This window is considerably wider than those of the majority of sulfide solid electrolytes (Figure S6) ,− such as β-Li 3 PS 4 , Li 7 P 3 S 11 , Li 10 GeP 2 S 12 , Li 10 SnP 2 S 12 , and Li 6 PS 5 Cl within the Li|SSE|SSE+C test cell configuration. To ensure a fair comparison, we specifically chose pristine sulfide electrolytes (without any dopants or coatings) and determined the range of the electrochemical stability window based on the onset voltage.…”

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confidence: 99%

Experimental Discovery of a Fast and Stable Lithium Thioborate Solid Electrolyte, Li_6+2x[B₁₀S₁₈]S_x (x ≈ 1)

Wan

et al. 2023

ACS Energy Lett.

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High-performance, practical all-solid-state batteries (ASSBs) require solid-state electrolytes (SSEs) with fast Li-ion conduction, wide electrochemical stability window, low cost, and low mass density. Recent density functional theory (DFT) simulations have suggested that lithium thioborates are a particularly promising class of materials for high-performance SSEs in Li batteries, but these materials have not been studied extensively experimentally due to synthesis difficulty. Particularly, their electrochemical properties remain largely underexplored, limiting their further development and application as SSEs. In this work, we report the successful synthesis and a comprehensive electrochemical performance study of single-phase, crystalline Li6+2x [B10S18]S x (x ≈ 1). We find cold-pressed samples of Li6+2x [B10S18]S x (x ≈ 1) to exhibit a high ionic conductivity of 1.3 × 10–4 S cm–1 at room temperature. Furthermore, Li6+2x [B10S18]S x (x ≈ 1) shows an electrochemical stability window of 1.3–2.5 V, much wider than most sulfide SSEs. Symmetrical Li–Li cells fabricated with a Li6+2x [B10S18]S x (x ≈ 1) pellet were cycled up to a current density of 1 mA cm–2 and exhibited good long-term cycling stability for more than 140 h at 0.3 mA cm–2. These results suggest Li6+2x [B10S18]S x (x ≈ 1) as a promising choice of SSE for high-performance ASSBs for energy storage.

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confidence: 99%

Experimental Discovery of a Fast and Stable Lithium Thioborate Solid Electrolyte, Li_6+2x[B₁₀S₁₈]S_x (x ≈ 1)

Wan

et al. 2023

ACS Energy Lett.

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“…Figure S9 illustrates that the deposition of lithium (Li/Li + ) is solely an observable peak at around 0 V, with no additional peaks observed. It suggests the as-prepared composite SE has a similar electrochemical window with the 0%-LPSC SE …”

Section: Resultsmentioning

confidence: 99%

“…It suggests the as-prepared composite SE has a similar electrochemical window with the 0%-LPSC SE. 54 To examine the surface morphology of the Li anode before and after cycling, SEM analysis was conducted. For the post cycling test, the lithium metal anodes were disassembled from the cells that had undergone cycling for 5 and 50 cycles at 0.1 mA h cm −2 areal capacity and 0.1 mA cm −2 current density.…”

Section: Structural Characterizationmentioning

confidence: 99%

Boosting the Interfacial Stability of the Li₆PS₅Cl Electrolyte with a Li Anode via In Situ Formation of a LiF-Rich SEI Layer and a Ductile Sulfide Composite Solid Electrolyte

Serbessa,

Taklu,

Nikodimos

et al. 2024

ACS Appl. Mater. Interfaces

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Due to its good mechanical properties and high ionic conductivity, the sulfide-type solid electrolyte (SE) can potentially realize allsolid-state batteries (ASSBs). Nevertheless, challenges, including limited electrochemical stability, insufficient solid−solid contact with the electrode, and reactivity with lithium, must be addressed. These challenges contribute to dendrite growth and electrolyte reduction. Herein, a straightforward and solvent-free method was devised to generate a robust artificial interphase between lithium metal and a SE. It is achieved through the incorporation of a composite electrolyte composed of Li 6 PS 5 Cl (LPSC), polyethylene glycol (PEG), and lithium bis(fluorosulfonyl)imide (LiFSI), resulting in the in situ creation of a LiF-rich interfacial layer. This interphase effectively mitigates electrolyte reduction and promotes lithium-ion diffusion. Interestingly, including PEG as an additive increases mechanical strength by enhancing adhesion between sulfide particles and improves the physical contact between the LPSC SE and the lithium anode by enhancing the ductility of the LPSC SE. Moreover, it acts as a protective barrier, preventing direct contact between the SE and the Li anode, thereby inhibiting electrolyte decomposition and reducing the electronic conductivity of the composite SE, thus mitigating the dendrite growth. The Li|Li symmetric cells demonstrated remarkable cycling stability, maintaining consistent performance for over 3000 h at a current density of 0.1 mA cm −2 , and the critical current density of the composite solid electrolyte (CSE) reaches 4.75 mA cm −2 . Moreover, the all-solid-state lithium metal battery (ASSLMB) cell with the CSEs exhibits remarkable cycling stability and rate performance. This study highlights the synergistic combination of the in-situ-generated artificial SE interphase layer and CSEs, enabling high-performance ASSLMBs.

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“…For example, Taklu et al fabricated iodized-oxychloride sulfide electrolyte by employing oxygen doping with fumy iodine additive (Li 6 PS 4.8 O 0.2 Cl-5 wt% I 2 ). [118] Insitu formed SEI composed of Li 2 O and LiI contributed to suppressing reductive decomposition of electrolyte against lithium metal. As a result, the Li j Li 6 PS 4.8 O 0.2 Cl-5 wt% I 2 j Li symmetric cell showed stable cyclability over 260 hours at a current density of 10 mA cm À 2 and an areal capacity of 10 mAh cm À 2 .…”

Section: Chemical/electrochemical Stabilities At the Interfacementioning

confidence: 99%

Fast Charging Lithium Metal Batteries with Liquid and Solid‐State Electrolytes

Park,

Song,

Lee

2023

Batteries & Supercaps

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The advent of fast charging technologies has revolutionized the field of energy storage, promising shorter charging times for lithium metal batteries. However, the pursuit of rapid charging capabilities presents several challenges, primarily due to the formation of lithium dendrites, which in turn, can lead to thermal runaway and safety risks. In this review, we first discuss the growth behaviour of lithium metal in both liquid and solid‐state electrolytes. Then, we outline the challenges and recent progress in lithium metal batteries, particularly under fast charging conditions. Furthermore, we present comprehensive summary of the literatures on lithium metal batteries cycled at high current densities, investigating their performance with both liquid and solid‐state electrolytes. Finally, we propose perspectives on various strategies aimed at addressing the challenges associated with lithium metal batteries under fast charging conditions.

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Air-stable iodized-oxychloride argyrodite sulfide and anionic swap on the practical potential window for all-solid-state lithium-metal batteries

Cited by 20 publications

References 49 publications

Experimental Discovery of a Fast and Stable Lithium Thioborate Solid Electrolyte, Li_6+2x[B₁₀S₁₈]S_x (x ≈ 1)

Experimental Discovery of a Fast and Stable Lithium Thioborate Solid Electrolyte, Li_6+2x[B₁₀S₁₈]S_x (x ≈ 1)

Boosting the Interfacial Stability of the Li₆PS₅Cl Electrolyte with a Li Anode via In Situ Formation of a LiF-Rich SEI Layer and a Ductile Sulfide Composite Solid Electrolyte

Fast Charging Lithium Metal Batteries with Liquid and Solid‐State Electrolytes

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Air-stable iodized-oxychloride argyrodite sulfide and anionic swap on the practical potential window for all-solid-state lithium-metal batteries

Cited by 20 publications

References 49 publications

Experimental Discovery of a Fast and Stable Lithium Thioborate Solid Electrolyte, Li6+2x[B10S18]Sx (x ≈ 1)

Experimental Discovery of a Fast and Stable Lithium Thioborate Solid Electrolyte, Li6+2x[B10S18]Sx (x ≈ 1)

Boosting the Interfacial Stability of the Li6PS5Cl Electrolyte with a Li Anode via In Situ Formation of a LiF-Rich SEI Layer and a Ductile Sulfide Composite Solid Electrolyte

Fast Charging Lithium Metal Batteries with Liquid and Solid‐State Electrolytes

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Experimental Discovery of a Fast and Stable Lithium Thioborate Solid Electrolyte, Li_6+2x[B₁₀S₁₈]S_x (x ≈ 1)

Experimental Discovery of a Fast and Stable Lithium Thioborate Solid Electrolyte, Li_6+2x[B₁₀S₁₈]S_x (x ≈ 1)

Boosting the Interfacial Stability of the Li₆PS₅Cl Electrolyte with a Li Anode via In Situ Formation of a LiF-Rich SEI Layer and a Ductile Sulfide Composite Solid Electrolyte