US 12,456,751 B2
Solid ion conductor compound, solid electrolyte comprising the same, electrochemical cell comprising the same, and method of preparing the same
Wonsung Choi, Hwaseong-si (KR); Gabin Yoon, Seoul (KR); and Jusik Kim, Hwaseong-si (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR)
Filed on Oct. 25, 2021, as Appl. No. 17/509,537.
Claims priority of application No. 10-2020-0151113 (KR), filed on Nov. 12, 2020.
Prior Publication US 2022/0149430 A1, May 12, 2022
Int. Cl. H01M 10/0562 (2010.01); H01M 4/36 (2006.01); H01M 4/40 (2006.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 10/0562 (2013.01) [H01M 4/366 (2013.01); H01M 4/405 (2013.01); H01M 10/0525 (2013.01); H01M 2004/021 (2013.01); H01M 2300/008 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A solid ion conductor compound represented by Formula 1:
LixM1aM2bClyBrz  Formula 1
wherein M1 comprises Na, K, Rb, Cs, Fr, Be, Mg, Ca, Sr, Ba, Ra, Sc, Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Tc, Re, Fe, Ru, Os, Co, Rh, Ir, Ni, Pd, Pt, Cu, Ag, Au, Zn, Cd, Hg, or a combination thereof,
M2 comprises La, Ce, Pr, Nd, Pm, Eu, Dy, Ho, Er, Tm, Yb, Lu, or a combination thereof,
0<x<3.5, 0≤a<1.5, 0<b<1.5, 0<y<6, 0<z<6, and 0.16<z/(y+z)<0.34,
wherein the solid ion conductor compound has an ionic conductivity of 10−4 Siemens per centimeter or greater at −20° C. to 40° C., and
wherein the solid ion conductor compound does not have a diffraction peak at 40°2θ to 44°2θ, when analyzed by X-ray diffraction using CuKα radiation,
wherein the solid ion conductor compound comprises a phase having a crystal structure that belongs to a C2/m space group, and a phase having a crystal structure that belongs to a P3 m1 space group.