Sc-doping in Na3Zr2Si2PO12 electrolytes enables preeminent performance of solid-state sodium batteries in a wide temperature range

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

Gallium-substituted Nasicon Na3Zr2Si2PO12 solid electrolytes

Congcai Huang et al.

Summary: In this study, gallium-substituted Na3Zr2Si2PO12 solid electrolytes were prepared through solid-state synthesis. Among them, Na3.1Zr1.9-Ga0.1Si2PO12 exhibited significantly enhanced ionic conductivity and electrochemical stability, demonstrating a new substitution strategy for exploring Na+-ion solid electrolytes.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

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Article Nanoscience & Nanotechnology

Insight into Ion Diffusion Dynamics/Mechanisms and Electronic Structure of Highly Conductive Sodium-Rich Na3+xLaxZr2-xSi2PO12 (0 ≤ x ≤ 0.5) Solid-State Electrolytes

Fei Sun et al.

Summary: Solid-state electrolytes (SSEs) have been explored as a safer and more durable alternative to liquid electrolytes, with NASICON-type SSEs showing promise due to their high ionic conductivity and low thermal expansivity. Doping La into the NASICON structure significantly enhances the ionic conductivity, with La3+ ions existing as phosphate impurities instead of occupying Zr4+ sites. Increasing Si/P ratio and sodium ion occupancy contribute to the enhanced ionic conductivity in the altered NASICON phase, suggesting Si/P composition modifications as a promising strategy for further improvement.

ACS APPLIED MATERIALS & INTERFACES (2021)

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Article Engineering, Environmental

Grain boundary modification in garnet electrolyte to suppress lithium dendrite growth

Chujun Zheng et al.

Summary: In this study, a novel grain-boundary enhancement strategy was demonstrated by introducing LZO, which can be decomposed into Li2O in situ, into LLZT, achieving none mother powder sintering and effectively suppressing lithium dendrite growth. The strategy showed improved cell performance and stability in solid-state batteries.

CHEMICAL ENGINEERING JOURNAL (2021)

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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 Multidisciplinary Sciences

A dynamic stability design strategy for lithium metal solid state batteries

Luhan Ye et al.

Summary: A multi-layered electrolyte design can inhibit the growth of lithium dendrites in solid-state lithium metal batteries, improving their performance. However, practical challenges remain in realizing a lithium metal anode for batteries.

NATURE (2021)

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Article Chemistry, Physical

Sc, Ge co-doping NASICON boosts solid-state sodium ion batteries' performance

Lingbing Ran et al.

Summary: This study successfully improved the conductivity of NASICON by co-doping Sc and Ge, showing promising potential for the application of solid-state sodium ion batteries.

ENERGY STORAGE MATERIALS (2021)

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Article Nanoscience & Nanotechnology