US 12,362,382 B2
Solid electrolyte, method of preparing the same, lithium-air battery including the solid electrolyte, and electrochemical device including the solid electrolyte
Dongjoon Lee, Suwon-si (KR); Taejoo Park, Asan-si (KR); and Jungock Park, Yongin-si (KR)
Assigned to SAMSUNG ELECTRONICS CO, LTD., Gyeonggi-Do (KR); and INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY ERICA CAMPUS, Gyeonggi-Do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR); and Industry-University Cooperation Foundation Hanyang University ERICA Campus, Ansan-si (KR)
Filed on Mar. 12, 2021, as Appl. No. 17/199,780.
Claims priority of application No. 10-2020-0034663 (KR), filed on Mar. 20, 2020.
Prior Publication US 2021/0296687 A1, Sep. 23, 2021
Int. Cl. H01M 10/0562 (2010.01); C23C 14/08 (2006.01); C23C 16/40 (2006.01); H01M 12/06 (2006.01); H01M 12/08 (2006.01)
CPC H01M 10/0562 (2013.01) [C23C 14/08 (2013.01); C23C 16/40 (2013.01); H01M 12/06 (2013.01); H01M 12/08 (2013.01); H01M 2300/0068 (2013.01); H01M 2300/0071 (2013.01); H01M 2300/0094 (2013.01)] 21 Claims
OG exemplary drawing
 
15. A solid electrolyte comprising:
a first layer comprising an inorganic lithium-ion conductor; and
a second layer disposed on at least one surface of the first layer, wherein the second layer comprises at least one of LixTi(i−x/4)O2, LixZn(1−x/2)O, LixZn(1−x/2)(OH)2, LixLa(2−x/3)O3, LixGd(2−x/3)O3, LixGd(1−x/3)(OH)3, LixGa(2−x/3)O3, LixY(2−x/3)O3, LixHf(1−x/2)O2, LixLu(2−x/3)O3, LixLa(1−x/3)(OH)3, LixMg(1−x/2)O, or LixMg(1−x/2)(OH)2, and 0<x<5,
with the proviso that if the compound is LixTi(1−x/4)O2, 0<x≤1, and
the inorganic lithium-ion conductor comprises at least one of garnet-based ceramics Li3+xLa3M2O12, wherein 0≤x≤5, and M is at least one of W, Ta, Te, Nb, and Zr, and
doped garnet-based ceramics Li3+xLa3M2O12, wherein 0≤x≤5, M is at least one of W, Ta, Te, Nb, and Zr, and a dopant is at least one of Ge, Ta, Nb, Al, Ga, Sc, Li1+x+yAlxTi2−xSiyP3−yO12, wherein 0<x<2, and 0≤y<3, BaTiO3, Pb(ZraTi1−a)O3, wherein 0≤a≤1, Pb1−xLaxZr1−yTiyO3, wherein 0<x<1, and 0≤y<1, Pb(Mg1/3Nb2/3)O3—PbTiO3, Li3PO4, LixTiy(PO4)3, wherein 0<x<2, and 0<y<3, LixAlyTiz(PO4)3, wherein 0<x<2, 0<y<1, and 0<z<3, Li1+x+y(AlaGa1−a)x(TibGe1−b)2−xSiyP3−yO12, wherein 0≤x≤1, 0≤y≤1, 0≤a≤1, and 0≤b≤1, LixLayTiO3, wherein 0<x<2, and 0<y<3, LixGeyPzSw, wherein 0<x<4, 0<y<1, 0<z<1, and 0<w<5, LixNy, wherein 0<x<4, and 0<y<2, LixSiySz glass, wherein 0≤x<3, 0<y<2, and 0<z<4, LixPySz glass, wherein 0≤x<3, 0<y<3, and 0<z<7, Li3xLa2/3−xTiO3, wherein 0≤x≤1/6, Li7La3Zr2O12, Li1+yAlyTi2−y(PO4)3, wherein 0≤y≤1, Li1+zAlzGe2−z(PO4)3, wherein 0≤z≤1, Li2O, LiF, LioH, Li2CO3, LiAlO2, a Li2O—Al2O3—SiO2—P2O5—TiO2—GeO2 ceramic, Li10GeP2S12, Li3.25Ge0.25P0.75S4, Li3PS4, Li6PS5Br, Li6PS5Cl, Li7PS5, Li6PS5I, Li1.3Al0.3Ti1.7(PO4)3, LiTi2(PO4)3, LiHf2(PO4)3, LiZr2(PO4)3, Li3(NH2)2I, LiBH4, LiAlH4, LiNH2, Li0.34La0.51TiO2.94, LiSr2Ti2NbO9, Li0.06La0.66Ti0.93Al0.03O3, Li0.34Nd0.55TiO3, Li2CdCl4, Li2MgCl4, Li2ZnI4, Li2CdI4, Li4.9Ga0.5+δLa3Zr1.7W0.3O12, wherein 0≤δ<1.6, Li4.9Ga0.5+δLa3Zr1.7W0.3O12, wherein 1.7≤δ<2.5, and Li5.39Ga0.5+δLa3Zr1.7W0.3O12, wherein 0≤δ<1.11.