Chlorine-rich lithium argyrodites enables superior performances for solid-state Li–Se batteries at wide temperature range

Lin, Jinyan; Chen, Shuai; Li, Jiayang; Yu, Dian; Xu, Xiangling; Yu, Chuang; Chen, Shao-Qing; Miao, Xuefei; Peng, Linfeng; Wei, Cheng; Liu, Chongxuan; Cheng, Shijie; Xie, Jia

doi:10.1007/s12598-022-02093-z

Cited by 16 publications

(7 citation statements)

References 36 publications

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“…During the charging process, the variations of pressure maintain large values with only slight changes. While the pressure shows fast decreases during the following discharging process with higher values. − It seems that these three different contribution parts are significantly affected by the increased temperatures. The intense volume changes during cycling at elevated temperatures damage the solid–solid contact in the cathode mixture, resulting in inferior battery performance.…”

Section: Resultsmentioning

confidence: 98%

Origin of the High Conductivity of the LiI-Doped Li₃PS₄ Electrolytes for All-Solid-State Lithium–Sulfur Batteries Working in Wide Temperature Ranges

Wei

et al. 2022

Ind. Eng. Chem. Res.

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Sulfide electrolytes show great potential as solid electrolytes for all-solid-state batteries due to their high ionic conductivity and low interfacial resistance toward electrode materials. The structure of the P−S framework in the composition of sulfides plays a crucial role in the conductivity. Introducing LiI in the Li 3 PS 4 structure can tailor the P−S frameworks and thus achieve high ionic conductivities. Herein, the dopant of LiI is optimized by high-rotation milling, followed by a sintering route to achieve the highest Li-ion conductivity of 2.3 mS cm −1 for the Li 3 PS 4 -50% LiI electrolyte (also denoted as Li 7 P 2 S 8 I) among different compositions. The phase variations and structure evolution of the P−S frameworks in the LiI-doped Li 3 PS 4 electrolytes are carefully investigated in a combination of X-ray diffraction and Raman spectra. All-solid-state Li−S batteries using the prepared Li 7 P 2 S 8 I electrolyte combined with a nano Li 2 S cathode and a Li−In anode deliver a high initial discharge capacity of 739.7 mA h g −1 and sustain a discharge capacity of 517.7 mA h g −1 after 60 cycles with a capacity retention of 70.0% at 0.13 mA cm −2 at room temperature. When the operating temperature rises to 60 °C, it shows a higher discharge capacity of 862.8 mA h g −1 with fast capacity decay. However, it exhibits stable capacities and superior cycling performance under 0 °C over 70 cycles. Electrochemical impedance spectroscopy and in situ stack-pressure results find that the electrochemical performance differences of the assembled battery at different operating temperatures are associated with the interfacial resistance caused by volume changes. This work provides the strategy to obtain highly conductive sulfide electrolytes for SSBs and unravels the temperature effects on the electrochemical performance of all-solid-state Li−S batteries.

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Section: Resultsmentioning

confidence: 98%

Origin of the High Conductivity of the LiI-Doped Li₃PS₄ Electrolytes for All-Solid-State Lithium–Sulfur Batteries Working in Wide Temperature Ranges

Wei

et al. 2022

Ind. Eng. Chem. Res.

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“…Xie et al developed a Se/CNT cathode for use in the ASSLSeBs. 62 CNTs were chosen as the host material due to their large channels and high specific surface area, which provided active sites for Se species and improved electronic conductivity while mitigating volume variation during reactions. 63,64 The synthesis process involved ball milling of Se powder and CNT at the weight ratio of 7:3 for 4 h at 110 rpm.…”

Section: Construct the Host For Se Cathodesmentioning

confidence: 99%

Section: Design and Modification Of The Asslsebsmentioning

confidence: 99%

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A review of all‐solid‐state lithium‐selenium batteries

Guo,

Zhang,

Tang

et al. 2023

Battery Energy

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Rechargeable lithium‐selenium batteries (LSeBs) are promising candidates for next‐generation energy storage systems due to their exceptional theoretical volumetric energy density (3253 mAh cm−3). However, akin to lithium‐sulfur batteries, the adoption of LSeBs has been hampered by problems such as polyselenides migration in liquid electrolytes, uncontrolled dendrite growth and safety concerns. To overcome these issues, researchers proposed to use the solid‐state electrolytes (SSEs) as a method, which could mitigate the formation of polyselenides. However, practical utilization of the all‐solid‐state Li‐Se batteries (ASSLSeBs) face significant obstacles, including sluggish redox kinetics during Se conversion (Se ↔ Li2Se), inadequate interfacial contact and formation of Li dendrites. Scientists have applied strategies to tackle these challenges. This article offers a timely review of emerging strategies. The article begins by conducting a detailed analysis of the working principles of ASSLSeBs and identifying the critical challenges that hinder practical application. Subsequently, the article presents a comprehensive summary of various strategies aimed at boosting the development of ASSLSeBs, which encompass advancements in Se cathode materials, optimization of SSEs, design of stable Li anodes, and approaches in addressing the interfacial challenge. Finally, the article offers further perspectives about promoting the application of ASSLSeBs. It highlights the need for continued research and development to overcome existing limitations. Overall, by understanding these emerging strategies, researchers could enhance the technology of LSeBs, bringing us closer to the practical realization of high‐energy storage systems.

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“…Many sulfide electrolytes have been successfully developed for all-solid-state batteries. (Guo et al, 2022;Lin et al, 2022;Liu et al, 2022;Zeng et al, 2022). Compared with most of other SSEs, Li 7 P 3 S 11 achieved a much higher experimental ion conductivity of around 1.7 × 10 -2 S cm −1 , a theoretical conductivity of around 7.2 × 10 -2 S cm −1 , and lower activation energy of around 12 kJ mol −1 at room temperature.…”

Section: Introductionmentioning

confidence: 96%

Low temperature ensures FeS2 cathode a superior cycling stability in Li7P3S11-based all-solid-state lithium batteries

Wu¹,

Yu²,

Wei³

et al. 2023

Front. Energy Res.

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All-solid-state lithium sulfide batteries exhibit great potential as next-generation energy storage devices due to their low cost and high energy density. However, the poor conductivity of the solid electrolytes and the low electronic conductivity of sulfur limit their development. In this work, the highly conductive Li7P3S11 glass-ceramic solid electrolyte with room temperature conductivity of 1.27 mS cm−1 is synthesized and combined with the FeS2 cathode and Li-In anode to fabricate FeS2/Li7P3S11/Li-In all-solid-state Li-S battery. The assembled battery delivers high initial discharge capacities of 620.8, 866.4 mAh g−1, and 364.8 mAh g−1 at 0.1C under room temperature, 60°C and 0°C, respectively. It shows a discharge capacity of 284.8 mAh g−1 with a capacity retention of 52.4% after 80 cycles at room temperature. When the operating temperature rises to 60°C, this battery suffers a fast decay of capacity in 40 cycles. However, this battery sustains a high discharge capacity of 256.6 mAh g−1 with a capacity retention of 87.9% after 100 cycles under 0°C, smaller volume expansion of ASSBs at 0°C keep the solid/solid contact between the electrolyte particles, thus resulting in better electrochemical performances. EIS and in situ pressure characterizations further verify that the differences of electrochemical performances are associated with the volume variations caused by the temperature effects. This work provides a guideline for designing all-solid-state Li-S which is workable in a wide temperature range.

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Chlorine-rich lithium argyrodites enables superior performances for solid-state Li–Se batteries at wide temperature range

Cited by 16 publications

References 36 publications

Origin of the High Conductivity of the LiI-Doped Li₃PS₄ Electrolytes for All-Solid-State Lithium–Sulfur Batteries Working in Wide Temperature Ranges

Origin of the High Conductivity of the LiI-Doped Li₃PS₄ Electrolytes for All-Solid-State Lithium–Sulfur Batteries Working in Wide Temperature Ranges

A review of all‐solid‐state lithium‐selenium batteries

Low temperature ensures FeS2 cathode a superior cycling stability in Li7P3S11-based all-solid-state lithium batteries

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Chlorine-rich lithium argyrodites enables superior performances for solid-state Li–Se batteries at wide temperature range

Cited by 16 publications

References 36 publications

Origin of the High Conductivity of the LiI-Doped Li3PS4 Electrolytes for All-Solid-State Lithium–Sulfur Batteries Working in Wide Temperature Ranges

Origin of the High Conductivity of the LiI-Doped Li3PS4 Electrolytes for All-Solid-State Lithium–Sulfur Batteries Working in Wide Temperature Ranges

A review of all‐solid‐state lithium‐selenium batteries

Low temperature ensures FeS2 cathode a superior cycling stability in Li7P3S11-based all-solid-state lithium batteries

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Origin of the High Conductivity of the LiI-Doped Li₃PS₄ Electrolytes for All-Solid-State Lithium–Sulfur Batteries Working in Wide Temperature Ranges

Origin of the High Conductivity of the LiI-Doped Li₃PS₄ Electrolytes for All-Solid-State Lithium–Sulfur Batteries Working in Wide Temperature Ranges