Synthesis of Li7La3Zr2O12 Solid Electrolyte by Solid Phase Sintering Method
IOP Conference Series: Materials Science and Engineering(2019)
摘要
Abstract Li7La3Zr2O12 (LLZO) is a promising electrolyte material for all-solid-state battery due to its high ionic conductivity and good air stability with metallic lithium. In this article, Li7La3Zr2O12 electrolytes with excess lithium 4wt%, 6wt%, 8wt%, 10wt% were prepared by traditional two steps solid-phase sintering method. The influence of concentration of lithium and calcination temperature on the structure of Li7La3Zr2O12 were investigated by X-ray diffraction (XRD) and scanning electron microscopy (SEM) in detail. To improve the density of the sample, the granulation was applied. Scanning electron microscopy (SEM) results showed the granulation of Li7La3Zr2O12 power before pressing can significantly accelerate densification during the final high temperature, long duration sintering process.
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关键词
solid electrolyte,li<sub>7</sub>la<sub>3</sub>zr<sub>2</sub>o<sub>12</sub>,solid phase,synthesis
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