Oxide doping improving interface performance for Li7P3S11 solid electrolytes

Song, Ruifeng; Xu, Ruonan; Wang, Zhenyu; Yang, Meng; Yan, Xinlin; Yu, Chuang; Zhang, Long

doi:10.1016/j.jallcom.2022.166125

Cited by 17 publications

(3 citation statements)

References 59 publications

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“…By doing so, electrodes and solid-state electrolytes will exhibit lower interfacial resistance, leading to better performance at high rates. Also, solid-state electrolytes can be more chemically stable, preventing from decomposing and allowing the use of high-voltage Li cathode materials, and their working voltage ranges can be extended between 0.5 and 5 V. 23,29,[35][36][37][38][39][40][41][42][43][44][45][46][47][48] Among various dopants, cerium (Ce) or CeO 2-x has received considerable attention in the research community. There are several advantages associated with cerium doping, including an increased ionic conductivity, improved stability, and a suppression of the polysulfide shuttle effect in Li-S battery.…”

Section: Introductionmentioning

confidence: 99%

“…By doing so, electrodes and solid‐state electrolytes will exhibit lower interfacial resistance, leading to better performance at high rates. Also, solid‐state electrolytes can be more chemically stable, preventing from decomposing and allowing the use of high‐voltage Li cathode materials, and their working voltage ranges can be extended between 0.5 and 5 V 23,29,35–48 . Among various dopants, cerium (Ce) or CeO 2‐x has received considerable attention in the research community.…”

Section: Introductionmentioning

confidence: 99%

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A highly stable and conductive cerium‐doped Li₇P₃S₁₁ glass‐ceramic electrolyte for solid‐state lithium–sulfur batteries

Mirtaleb,

Wang

2024

J Am Ceram Soc.

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In this report, a facile wet chemical method using acetonitrile combined with thermal annealing was used to prepare Li2S‐P2S5 (LPS) based glass‐ceramic electrolytes with (1 wt%, 3 wt%, and 5 wt% Ce2S3) and without Ce2S3 doping. The crystal structure, ionic conductivity, and chemical stability of Li7P3S11 glass‐ceramic electrolytes were examined at varying temperatures (250–350°C). The results indicated that the highest ionic conductivity of 3.15 × 10−4 S cm−1 for pure Li7P3S11 was observed at a temperature of 325°C. By incorporating 1 wt% Ce2S3 and subjecting it to a heat treatment at 250°C, the glass ceramic electrolyte attained a remarkable ionic conductivity of 7.7 × 10−4 (S cm−1) at 25°C. Furthermore, it exhibited a stable and extensive electrochemical potential range, reaching up to 5 volts when compared to the Li/Li+ reference electrode. By tuning the glass transition and crystallization temperature, cerium doping seems to make Li7P3S11 more chemically stable, compared to its original 70Li2S‐30P2S5 counterpart. According to Raman and X‐ray photoelectron spectroscopy analyses, cerium doping inhibits the decomposition of highly conductive P2S74‐ (pyro‐thiophosphate) to PS43− and P2S64−. Doped LPS has a greater crystallinity and more uniform microstructure than pure LPS, according to XRD, Raman spectroscopy, and scanning electron microscopy analysis. Consequently, Li7P2.9Ce0.1S11 electrolyte shows great potential as a solid‐state electrolyte for constructing high‐performance sulfide‐based all‐solid‐state batteries.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A highly stable and conductive cerium‐doped Li₇P₃S₁₁ glass‐ceramic electrolyte for solid‐state lithium–sulfur batteries

Mirtaleb,

Wang

2024

J Am Ceram Soc.

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“…Inspired by ionic conductivity enhancement approaches by doping heterogeneous elements, ,− we used In 2 S 3 as a dopant to synthesize new SSEs Li 7 P 3 S 11 - x In 2 S 3 ( x = 0, 0.005, 0.01, and 0.02) in a sample ball mill approach. It is confirmed that with appropriate In-substitution, high σ Li+ 2.9 mS cm –1 at room temperature and decent air stability of Li 6.93 P 2.97 In 0.02 S 10.92 could be achieved.…”

Section: Introductionmentioning

confidence: 99%

Tailored Li₇P₃S₁₁ Electrolyte by In₂S₃ Doping Suppresses Electrochemical Decomposition for High-Performance All-Solid-State Lithium–Sulfur Batteries

Ahmad

Zeng

et al. 2022

ACS Appl. Energy Mater.

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The retentive functional intimate contact at the solid electrolyte/cathode interface and among the cathode components, for example, solid electrolyte, a conductive additive, and active material (S/Li 2 S), is essential for high-performance solid-state lithium−sulfur batteries. Currently, thiophosphate-based electrolytes are plagued by failure at the interfaces due to the intrinsically narrow electrochemical stability window, which in principle, derive uneven irreversible redox reactions at the triple point of contact, which result in sulfur-and phosphorus-enriched interphases (e.g., Li 3 P, P 2 S X , S, Li 2 S n , etc.), retard Li + conduction, and increase the interface resistance. Herein, structural tuning of Li 7 P 3 S 11 was done using the In 2 S 3 dopant, and the designed Li 6.93 P 2.97 In 0.02 S 10.92 electrolyte presented better σ Li+ of 2.9 mS cm −1 and enhanced air stability @ RT. Furthermore, In 2 S 3 broadened the electrochemical stability window and suppressed the redox decomposition of Li 7 P 3 S 11 at the interface in the Li 2 S-composite cathode layer, ensuring effective (ionic/electronic) conduction. Therefore, the Li 2 S/Li 6.93 P 2.97 In 0.02 S 10.92 /Li−In cell offers a high discharge capacity of 946.75 mA h g −1 with an ∼100% average Coulombic efficiency over 30 cycles. Moreover, the cell with Li 6.93 P 2.97 In 0.02 S 10.92 presented a low interfacial resistance of 127 compared to 383 Ω for counterparts over 30 cycles, which could be benefitted from suppressed redox decomposition of the solid electrolyte and long-lasting intimate contact at the triple point of contact. Thus, the projected doping strategy developed a sulfide electrolyte to address the chemical/electrochemical stabilities and redox decomposition of sulfide electrolytes for the next-generation all-solid-state technologies. KEYWORDS: Li 6.93 P 2.97 In 0.02 S 10.92 glass ceramic, air stability, low redox decomposition, stable solid electrolyte/cathode interface, all-solid-state lithium−sulfur batteries

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Nature‐Inspired Strategy: Novel Borohydride‐Based Solid Electrolytes Extracted from Cathode‐Electrolyte Interphase

Yin,

Yan,

et al. 2024

Advanced Materials

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As the core component of all‐solid‐state batteries, current solid‐state electrolytes fail to simultaneously meet multiple demands, such as their own high performance, the chemical, electrochemical and mechanical compatibility of electrode interface. A fresh perspective is rather desired to guide the development of novel solid electrolytes with comprehensive performance. Herein, this work proposes a novel strategy to synthesize solid electrolytes extracted from cathode‐electrolyte interphase (CEI), which is inspired by peach trees secreting peach gum to prevent further damage. A proof‐of‐concept, using LiBH4‐Se and LiBH4‐S as prototypes, confirms that as‐synthesized electrolytes inherited and improved up the advantages of LiBH4 with unexpected compatibility toward multiple cathodes. It is believed that the family of new electrolytes will be continuously expanded under the guidance of this CEI‐derived concept.

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Oxide doping improving interface performance for Li7P3S11 solid electrolytes

Cited by 17 publications

References 59 publications

A highly stable and conductive cerium‐doped Li₇P₃S₁₁ glass‐ceramic electrolyte for solid‐state lithium–sulfur batteries

A highly stable and conductive cerium‐doped Li₇P₃S₁₁ glass‐ceramic electrolyte for solid‐state lithium–sulfur batteries

Tailored Li₇P₃S₁₁ Electrolyte by In₂S₃ Doping Suppresses Electrochemical Decomposition for High-Performance All-Solid-State Lithium–Sulfur Batteries

Nature‐Inspired Strategy: Novel Borohydride‐Based Solid Electrolytes Extracted from Cathode‐Electrolyte Interphase

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Oxide doping improving interface performance for Li7P3S11 solid electrolytes

Cited by 17 publications

References 59 publications

A highly stable and conductive cerium‐doped Li7P3S11 glass‐ceramic electrolyte for solid‐state lithium–sulfur batteries

A highly stable and conductive cerium‐doped Li7P3S11 glass‐ceramic electrolyte for solid‐state lithium–sulfur batteries

Tailored Li7P3S11 Electrolyte by In2S3 Doping Suppresses Electrochemical Decomposition for High-Performance All-Solid-State Lithium–Sulfur Batteries

Nature‐Inspired Strategy: Novel Borohydride‐Based Solid Electrolytes Extracted from Cathode‐Electrolyte Interphase

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A highly stable and conductive cerium‐doped Li₇P₃S₁₁ glass‐ceramic electrolyte for solid‐state lithium–sulfur batteries

A highly stable and conductive cerium‐doped Li₇P₃S₁₁ glass‐ceramic electrolyte for solid‐state lithium–sulfur batteries

Tailored Li₇P₃S₁₁ Electrolyte by In₂S₃ Doping Suppresses Electrochemical Decomposition for High-Performance All-Solid-State Lithium–Sulfur Batteries