Achieving superior ionic conductivity of Li6PS5I via introducing LiCl

Article Engineering, Environmental

Chlorine-rich lithium argyrodite enabling solid-state batteries with capabilities of high voltage, high rate, low-temperature and ultralong cyclability

Linfeng Peng et al.

Summary: This study successfully improved the rate capability and cyclability of solid-state batteries by synthesizing a high-conductivity chloride Li5.5PS4.5Cl1.5 electrolyte and unraveling the role of carbon in the cathode mixture.

CHEMICAL ENGINEERING JOURNAL (2022)

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Article Chemistry, Physical

Unraveling the crystallinity on battery performances of chlorine-rich argyrodite electrolytes

Linfeng Peng et al.

Summary: Chlorine-rich argyrodite Li5.5PS4.5Cl1.5 shows potential for solid-state batteries due to high ionic conductivity and lower cost. However, the study found that crystalline Li5.5PS4.5Cl1.5 can enhance the performance of solid-state batteries, especially at elevated temperatures.

JOURNAL OF POWER SOURCES (2022)

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Letter Materials Science, Multidisciplinary

Synthetic optimization and application of Li-argyrodite Li6PS5I in solid-state battery at different temperatures

Zhen-Yuan He et al.

RARE METALS (2022)

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Article Chemistry, Physical

LiNbO3-coated LiNi0.7Co0.1Mn0.2O2 and chlorine-rich argyrodite enabling high-performance solid-state batteries under different temperatures

Linfeng Peng et al.

Summary: The study investigates the enhancement of solid-state battery performance by surface modification of high-voltage cathodes using LiNbO3 coating. The LNO@NCM712 electrode shows improved cyclic performance and lower resistance changes at different rates and temperatures, providing insight into the influence of modification layers on SSB performance and guidance for cathode modification design strategy.

ENERGY STORAGE MATERIALS (2021)

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Article Materials Science, Multidisciplinary

High-performance sandwiched hybrid solid electrolytes by coating polymer layers for all-solid-state lithium-ion batteries

Zhi-Yan Kou et al.

Summary: A sandwiched hybrid solid electrolyte system consisting of P(VDF-HIFP)/LATP/P(VDF-HFP) was tailored and successfully fabricated for all-solid-state lithium-ion batteries, showing excellent interfacial stability, high ionic conductivity, wide electrochemical working window, and high thermal stability. The assembled cells with the hybrid solid electrolytes exhibited stable discharge capacity and impressive rate performance, overcoming mechanical limitations of interface between electrodes and inorganic solid electrolytes for favorable properties in all-solid-state lithium-ion batteries.

RARE METALS (2021)

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Article Nanoscience & Nanotechnology

Robust Li6PS5I Interlayer to Stabilize the Tailored Electrolyte Li9.95SnP2S11.95F0.05/Li Metal Interface

Zhao Jiang et al.

Summary: F-doping was used to optimize the structure of Li10SnP2S12 electrolyte, increasing ionic conductivity and reducing impurities, while the Li6PS5I interlayer enhanced the interfacial stability between sulfide electrolyte and Li metal. These improvements led to high initial discharge capacity and remarkable cycling stability in the assembled ASSLMBs.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Chemistry, Applied

Sn-O dual-doped Li-argyrodite electrolytes with enhanced electrochemical performance

Ting Chen et al.

Summary: This study presents novel Li6PS5I-based argyrodite sulfides with Sn-O dual doping, which effectively enhances the material performance by improving ionic conductivity and interfacial compatibility between argyrodite and Li metal. The assembled battery demonstrates high capacity and cycling stability, indicating that dual doping is an effective approach to develop high performance sulfide solid electrolytes.

JOURNAL OF ENERGY CHEMISTRY (2021)

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Article Materials Science, Ceramics