Effect of calcining temperature on room temperature ionic conductivity of W, Y and Al co-doped Li7La3Zr2O12 solid electrolyte

2nd International Symposium on Application of Materials Science and Energy Materials

材料科学;能源学

Liu, XiaoZhen^1 ; Ding, Lei^1 ; Liu, Yuze^2 ; Shi, Xingjue^1 ; Chen, Jie^3 ; Wang, Aiping^1

School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Shanghai, China^1

College of Economic and Management, Beijing Forestry University, Beijing, China^2

Regenia AB, Stockholm, Sweden^3

关键词: Calcining temperature;    Co-doped;    Cubic phase;    Relative density;    Solid state reaction method;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/490/6/062004/pdf
DOI  :  10.1088/1757-899X/490/6/062004

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Li5.76La3Zr1.59W0.35Y0.06Al0.2O12 (W, Y, Al-LLZO) solid electrolyte was prepared by the solid-state reaction method. Effect of calcining temperature (T) on the crystal structure, morphology, relative density and shrinkage, total ionic conductivity of the prepared solid electrolyte were studied, respectively. Suitable T can stabilize cubic phase W, Y, Al-LLZO at room temperature, accelerate densification and improve the ionic conductivity respectively. The high total ionic conductivity of 2.31×10-4 S•cm-1 at 25 C is achieved in W, Y, Al-LLZO solid electrolyte calcined at 900 C for 6 h.