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US 6,485,622 B1Granted
Lithium ion conductive glass-ceramics and electric cells and gas sensors using the same
AssigneeKabushiki Kaisha Ohara
InventorJie Fu
Life of this patent
Estimating the term…
Abstract
Lithium ion conductive glass-ceramics comprise in mol %: P2O5 30-45% SiO2 0-15% GeO2 + TiO2 25-50% in which GeO2 0-50% TiO2 0-50% ZrO2 0-8% M2O3 0<-10% where M is an element or elements selected from the group consisting of In, Fe, Cr, Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Th, Dy, Ho, Er, Tm, Yb and Lu Al2O3 0-12% Ga2O3 0-12% Li2O 10-25% and contain Li1+X(M, Al, Ga)X(Ge1−YTiY)2−X(PO4)3 (where 0<X≦0.8 and 0≦Y≦1.0) as a predominant crystal phase. A solid electrolyte, an electric cell and a gas sensor utilizing these glass-ceramics are also provided.
Claims1
Lithium ion conductive glass-ceramics comprising in mol %:
- P2O5 30-45% SiO2 0-15% GeO2 + TiO2 25-50% in which GeO2 0-50% TiO2 0-50% ZrO2 0-8% M2O3 0 < -10% Al2O3 0-12% Ga2O3 0-12% Li2O 10-25%
- and containing Li1+x(M, Al, Ga)x(Ge1−yTiy)2−x(PO4)3 (where 0<X≦0.8 and 0≦Y≦1.0) as a predominant crystal phase, the glass ceramics being obtained by melting raw materials to a melt, casting the melt to a glass and subjecting the glass to a heat treatment, wherein M is an element selected from the group consisting of Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, and Yb.
Dependencies are inferred from the claim text.