US 11,949,065 B2
Solid electrolyte, method of preparing the same, and secondary battery including the same
Jusik Kim, Hwaseong-si (KR); Sewon Kim, Suwon-si (KR); Hyunseok Kim, Suwon-si (KR); Michael Edward Badding, Corning, NY (US); Zhen Song, Corning, NY (US); Karen E. Thomas-Alyea, Mountain View, CA (US); Lincoln James Miara, Mountain View, CA (US); and Dongmin Im, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Gyeonggi-Do (KR); and CORNING INCORPORATED, Corning, NY (US)
Filed by Samsung Electronics Co., Ltd., Suwon-si (KR); and CORNING INCORPORATED, Corning, NY (US)
Filed on Apr. 23, 2021, as Appl. No. 17/238,488.
Application 17/238,488 is a continuation of application No. 16/298,167, filed on Mar. 11, 2019, granted, now 11,038,199.
Claims priority of application No. 10-2018-0106504 (KR), filed on Sep. 6, 2018.
Prior Publication US 2021/0242495 A1, Aug. 5, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 10/056 (2010.01); H01M 10/0525 (2010.01); H01M 10/0562 (2010.01); H01M 50/403 (2021.01); H01M 50/431 (2021.01); H01M 50/449 (2021.01); H01M 50/491 (2021.01)
CPC H01M 10/0562 (2013.01) [H01M 10/0525 (2013.01); H01M 50/403 (2021.01); H01M 50/431 (2021.01); H01M 50/449 (2021.01); H01M 50/491 (2021.01); H01M 2300/0068 (2013.01); H01M 2300/0094 (2013.01)] 35 Claims
OG exemplary drawing
 
1. A solid electrolyte comprising:
an inorganic lithium ion conductive film; and
a porous layer on a surface of the inorganic lithium ion conductive film,
wherein the porous layer has an inner surface facing the inorganic lithium ion conductive film and an opposite outer surface, and an amount of protons on the outer surface of the porous layer is greater than an amount of protons inside the porous layer,
wherein the porous layer comprises a first porous layer and a second porous layer, and the second porous layer is disposed between the inorganic lithium ion conductive film and the first porous layer,
wherein the first porous layer has a pore size which is greater than a pore size of the second porous layer, and
wherein the first porous layer comprises a first inorganic lithium ion conductor substituted with about 2% to about 100% protons, and the second porous layer solid electrolyte comprises a second inorganic lithium ion conductor substituted with about 0.01% to about 20% protons, based on the total number of protons and lithium ions.