화학공학소재연구정보센터
학회 한국재료학회
학술대회 2014년 봄 (05/15 ~ 05/16, 창원컨벤션센터)
권호 20권 1호
발표분야 C. 에너지/환경 재료(Energy and Environmental Materials)
제목 The ion conductivity properties of the Li2O-TiO2-Al2O3-P2O5 glass-ceramic sysemt as solid electrolyte of Li battery
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. In this context, melting temperature and Li2O and TiO2 contents effect on the crystal phase and ionic conductivity of lithium phosphate. The glass system select (1+x) Li2O - (2-x) TiO2 – 0.5 Al2O3 – (PO4) 3 and (1.2+x) Li2O - (2-x) TiO2 – 0.5 Al2O3 – (PO4) 3. The crystal phases show a difference according to melting temperature and melting time. In case of (1.2+x) Li2O - (2-x) TiO2 – 0.5 Al2O3 – (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 10-3 order independent of Li2O and TiO2 contents.
저자 이미재, 김진호, 황종희, 임태영, 김빛남
소속 한국세라믹기술원 광디스플레이소재팀
키워드 solid electrolyte; Li2O-TiO2-Al2O3-P2O5 glass; ionic conductivity; melting temperature; crystal phase
E-Mail