This study investigates the effect of the microstructure of Li1.3Al0.3Ti1.7(PO4)3 (LATP), a solid electrolyte, on its ionic conductivity. Solid electrolytes, a key component in electrochemical energy storage devices such as batteries, differ from traditional liquid electrolytes by utilizing solid-state ionic conductors. LATP, characterized by its NASICON structure, facilitates rapid lithium-ion movement and exhibits relatively high ionic conductivity, chemical stability, and good electrochemical compatibility. In this study, the microstructure and ionic conductivity of LATP specimens sintered at 850, 900, and 950oC for various sintering times are analyzed. The results indicate that the changes in the microstructure due to sintering temperature and time significantly affect ionic conductivity. Notably, the specimens sintered at 900oC for 30 min exhibit high ionic conductivity. This study presents a method to optimize the ionic conductivity of LATP. Additionally, it underscores the need for a deeper understanding of the Li-ion diffusion mechanism and quantitative microstructure analysis.

1. Introduction
2. Experimental Procedures
3. Results and Discussion
4. Conclusion
Acknowledgement
References

• 최형익(고려대학교 신소재공학과, 한국세라믹기술원 세라믹종합솔루션센터) | Hyungik Choi (Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea, Ceramic Total Solution Center, Korea Institute of Ceramic Engineering and Technology, Icheon 17303, Republic of Korea)
• 한윤수(한국세라믹기술원 세라믹종합솔루션센터) | Yoonsoo Han (Ceramic Total Solution Center, Korea Institute of Ceramic Engineering and Technology, Icheon 17303, Republic of Korea) Corresponding author