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학술지 Tailored Perovskite Li0.33La0.56TiO3 via an Adipic Acid-assisted Solution Process: A Promising Solid Electrolyte for Lithium Batteries
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저자
최현준, 김소영, 공민경, Hari Vignesh, Vanchiappan Aravindan, 이영기, 이윤성
발행일
201712
출처
Journal of Alloys and Compounds, v.729, pp.338-343
ISSN
0925-8388
출판사
Elsevier
DOI
https://dx.doi.org/10.1016/j.jallcom.2017.09.160
초록
We prepared and optimized the ionically conducting perovskite-type Li0.33La0.56TiO3 by an adipic acid-assisted sol-gel process. A high ionic conductivity of 0.131 mS cm?닋1 was obtained at an ambient temperature by adjusting the synthesis temperature, holding time, and cooling process. A dramatic improvement in the Li0.33La0.56TiO3 conductivity was noted in each step. Interestingly, a tetragonal-to-cubic structural transition was evident during the quenching process unlike in the conventional slow cooling process. An increase in the bottleneck site volume was observed that facilitated Li+ ion migration for enhanced conductivity.
키워드
Ionic conductivity, Perovskite, Phase transition, Sol-gel, Solid electrolyte
KSP 제안 키워드
Adipic acid(AA), Ambient Temperature, Cooling process, Enhanced conductivity, High ionic conductivity, Holding time, Lithium battery, Perovskite-type, Phase transition, Slow cooling, Solid electrolyte