화학공학소재연구정보센터
학회 한국재료학회
학술대회 2014년 가을 (11/27 ~ 11/28, 대전컨벤션센터)
권호 20권 2호
발표분야 C. 에너지/환경 재료(Energy and Environmental Materials)
제목 Properties of Li2O-TiO2-Al2O3-P2O5 glass system according to Li2O and TiO2 content as solid electrolyte.
초록 Lithium phosphate binary glasses have been widely studied in the field of solid state ionics due to their low melting temperatures, strong glass forming character and compositional flexibility. The hygroscopic nature of these glasses has always worried researchers as it limits their commercial use in solid state ionic devices. Suitable choice of a second glass former is expected to influence the stability as well as conduction characteristics of the binary phosphate glasses. The glass system select (1+x)Li2O-(2-x) TiO2–0.5 Al2O3–(PO4)3 and (1.2+x)Li2O-(2-x)TiO2–0.5Al2O3–(PO4)3.
In this context, melting temperature and Li2O and TiO2 contents effect on the crystal phase and ionic conductivity of lithium phosphate. The crystal phases show a difference according to melting temperature and melting time. In case of (1.2+x)Li2O-(2-x)TiO2–0.5Al2O3–(PO4)3 molten glass at 1300℃ for 2hrs, shows only LiTi2(PO4)3 crystal phase only independent of melting conditions. Also, ionic conductivity of glass in this components show 10-4 independent of Li2O and TiO2 contents
저자 김빛남1, 이미재1, 황종희1, 임태영1, 김진호1, 황해진2
소속 1한국세라믹기술원, 2인하대
키워드 Lithium battery; solid electrolyte; NASICON type; ionic conductivity
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