	US 12,482,855 B2
	Solid-state battery
Hye-Ri Jung, Daejeon (KR); Jung-Pil Lee, Daejeon (KR); Hoe-Jin Hah, Daejeon (KR); and Hyea-Eun Han, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/922,574
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Sep. 3, 2021, PCT No. PCT/KR2021/011977 § 371(c)(1), (2) Date Oct. 31, 2022, PCT Pub. No. WO2022/055189, PCT Pub. Date Mar. 17, 2022.
Claims priority of application No. 10-2020-0115643 (KR), filed on Sep. 9, 2020.
Prior Publication US 2023/0275260 A1, Aug. 31, 2023
Int. Cl. H01M 10/0562 (2010.01)

CPC H01M 10/0562 (2013.01) [H01M 2300/008 (2013.01); H01M 2300/0094 (2013.01)]

12 Claims

1. A solid-state battery comprising:

a positive electrode;

a negative electrode; and

a solid electrolyte membrane between the positive electrode and the negative electrode,

wherein the solid electrolyte membrane comprises a first solid electrolyte layer and a second solid electrolyte layer,

wherein the first solid electrolyte layer faces the positive electrode and comprises a first sulfide-based solid electrolyte,

wherein the second solid electrolyte layer comprises a second sulfide-based solid electrolyte having an average particle diameter (D50) larger than an average particle diameter (D50) of the first sulfide-based solid electrolyte,

wherein a resistance of the second solid electrolyte layer is lower than a resistance of the first solid electrolyte layer.