US 12,074,280 B2
All-solid secondary battery and method of manufacturing all-solid secondary battery
Hyorang Kang, Anyang-si (KR); Minsuk Lee, Suwon-si (KR); and Dooyeon Lee, Yongin-si (KR)
Assigned to SAMSUNG ELECTRONICS CO , LTD., Gyeonggi-Do (KR); and SAMSUNG SDI CO., LTD., Gyeonggi-Do (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR); and Samsung SDI Co., Ltd., Yongin-si (KR)
Filed on Jun. 21, 2022, as Appl. No. 17/844,832.
Application 17/844,832 is a continuation of application No. 16/703,039, filed on Dec. 4, 2019, granted, now 11,411,246.
Claims priority of application No. 10-2018-0156273 (KR), filed on Dec. 6, 2018; and application No. 10-2019-0134804 (KR), filed on Oct. 28, 2019.
Prior Publication US 2022/0328870 A1, Oct. 13, 2022
Int. Cl. H01M 10/0562 (2010.01); H01M 4/36 (2006.01); H01M 10/052 (2010.01); H01M 10/0565 (2010.01)
CPC H01M 10/0562 (2013.01) [H01M 4/366 (2013.01); H01M 10/052 (2013.01); H01M 10/0565 (2013.01); H01M 2300/0065 (2013.01); H01M 2300/0068 (2013.01)] 28 Claims
OG exemplary drawing
 
1. An all-solid secondary battery comprising:
an anode comprising an anode current collector, a first anode active material layer, and a second anode active material layer between the anode current collector and the first anode active material layer;
a cathode comprising a cathode active material layer; and
a solid electrolyte layer between the anode and the cathode,
wherein the first anode active material layer comprises an anode active material and an ionic compound,
wherein the ionic compound comprises a binary compound, a ternary compound, or a combination thereof,
wherein the ionic compound does not comprise a plurality of sulfur atoms,
wherein the anode active material comprises a carbonaceous anode active material, a metal anode active material, a metalloid anode active material, or a combination thereof, and
wherein the second anode active material layer comprises lithium, a lithium alloy, or a combination thereof; wherein a thickness of the first anode active material layer is about 50% or less of a thickness of the cathode active material layer, and the first anode active material layer has a thickness of about 1 micrometer to about 20 micrometers.