US 11,677,097 B2
Solid electrolyte, method of preparing the same, and electrochemical device including the same
Sungkyun Jung, Suwon-si (KR); Hyeokjo Gwon, 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 Jun. 1, 2021, as Appl. No. 17/335,173.
Claims priority of application No. 10-2020-0066524 (KR), filed on Jun. 2, 2020; and application No. 10-2021-0070877 (KR), filed on Jun. 1, 2021.
Prior Publication US 2021/0376378 A1, Dec. 2, 2021
Int. Cl. H01M 10/0562 (2010.01); H01M 4/134 (2010.01); H01M 4/02 (2006.01)
CPC H01M 10/0562 (2013.01) [H01M 4/134 (2013.01); H01M 2004/027 (2013.01); H01M 2300/008 (2013.01)] 37 Claims
OG exemplary drawing
 
1. A solid electrolyte comprising:
a compound represented by Formula 1 or Formula 3,
wherein the compound represented by Formula 1 or Formula 3 has a glass transition temperature of −30° C. or less, and a glass or glass-ceramic structure
AQX—Ga1−zMz1(F1−kClk)3−3zZ3z1  Formula 1
wherein, in Formula 1,
Q is Li or a combination of Li and Na, K, or a combination thereof,
M is a trivalent cation, or a combination thereof,
X is a halogen other than F, a pseudohalogen, OH, or a combination thereof,
Z is a monovalent anion, or a combination thereof,
1<A<5, 0≤z<1, 0≤z1≤1, and 0≤k<1,
AQX-aMz1Z3z1-bGa1−z(F1−kClk)3−3z  Formula 3
wherein, in Formula 3, Q is Li or a combination of Li and Na, K, or a combination thereof;
M is a trivalent cation, or a combination thereof,
X is a halogen other than F, pseudohalogen, OH, or a combination thereof,
Z is a monovalent anion, or a combination thereof,
0<a≤1, 0<b≤1, 0<a+b, a+b=4−A, 1<A<5, 0≤z<1, 0≤z1≤1, and 0≤k<1.