Application of Rod-Like Li6PS5Cl Directly Synthesized by a Liquid Phase Process to Sheet-Type Electrodes for All-Solid-State Lithium Batteries
| Autor: | Jiu Ann, Seungwoo Lim, Sunho Choi, Chanhwi Park, Dongwook Shin, Jiyae Do |
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| Rok vydání: | 2018 |
| Předmět: |
Materials science
Renewable Energy Sustainability and the Environment 020209 energy Argyrodite chemistry.chemical_element 02 engineering and technology Electrolyte engineering.material Conductivity Condensed Matter Physics Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry Chemical engineering 0202 electrical engineering electronic engineering information engineering Materials Chemistry Electrochemistry Fast ion conductor engineering Slurry Ionic conductivity Lithium Particle size |
| Zdroj: | Journal of The Electrochemical Society. 166:A5193-A5200 |
| ISSN: | 1945-7111 0013-4651 |
| DOI: | 10.1149/2.0301903jes |
| Popis: | All-solid-state lithium batteries employing sulfide-based solid electrolytes have emerged as promising next-generation batteries for large-scale energy storage applications because of their safety and high energy density. Among them, Li6PS5X (X = Cl, Br, I) with an argyrodite structure synthesized by planetary milling exhibits a rather high lithium ion conductivity of 10−2 – 10−3 S cm−1 at room temperature. Unfortunately, the planetary milling process has the disadvantage of producing the solid electrolytes with large, round-shaped particles. Recently, the solid electrolytes have been synthesized by not the mechanical milling but the liquid-phase process, which facilitates synthesis of sub-micrometer- to nanometer-sized solid electrolyte particles. It is important to reduce the particle size of the solid electrolyte to promote intimate contact with the active material in the composite cathode. Here, rod-like Li6PS5Cl solid electrolyte with a high ionic conductivity of 1.1 × 10−3 S cm−1 at room temperature was, for the first time, directly prepared by a liquid phase process using only a stirring method. SEM images showed the electrolyte had a rod-like morphology with a length of 20–30 μm and a width of 2–3 μm. The composite cathode was prepared from a slurry and the cell performances were investigated. |
| Databáze: | OpenAIRE |
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