US 12,362,364 B2
All-solid-state battery with improved durability and method of manufacturing the same
Jae Min Lim, Gyeonggi-do (KR); Hong Suk Choi, Gyeonggi-do (KR); Sung Man Cho, Gyeonggi-do (KR); Seon Hwa Kim, Chungcheongbuk-do (KR); Young Jin Nam, Gyeonggi-do (KR); and Sang Wan Kim, Daejeon (KR)
Assigned to Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed by Hyundai Motor Company, Seoul (KR); and Kia Corporation, Seoul (KR)
Filed on Aug. 8, 2022, as Appl. No. 17/883,059.
Claims priority of application No. 10-2021-0109132 (KR), filed on Aug. 19, 2021.
Prior Publication US 2023/0058012 A1, Feb. 23, 2023
Int. Cl. H01M 4/62 (2006.01); H01M 4/04 (2006.01); H01M 4/134 (2010.01); H01M 4/1395 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/625 (2013.01) [H01M 4/0404 (2013.01); H01M 4/134 (2013.01); H01M 4/1395 (2013.01); H01M 2004/021 (2013.01); H01M 2004/027 (2013.01); H01M 2220/20 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An all-solid-state battery comprising:
an anode current collector;
a functional layer disposed on the anode current collector;
a solid electrolyte layer disposed on the functional layer; and
a cathode layer disposed on the solid electrolyte layer,
wherein the functional layer comprises one or more components that forms an alloy or a compound with lithium, and comprises a first interfacial layer at a side of the solid electrolyte layer and a second interfacial layer at a side of the anode current collector,
wherein a ratio (b/a) of a binding force (b) of the second interfacial layer to a binding force (a) of the first interfacial layer is about 0.6 or greater.
 
8. A vehicle comprising an all-solid-state battery according to claim 1.