US 12,294,080 B2
Method of coating solid electrolyte of solid-state battery and method of manufacturing electrode of solid-state battery using the same
Sun Ho Choi, Incheon (KR); Yong Jun Jang, Seongnam-Si (KR); In Woo Song, Gwacheon-Si (KR); Sang Heon Lee, Yongin-si (KR); So Young Kim, Jeongeup-Si (KR); Seong Hyeon Choi, Hwaseong-Si (KR); Mun Seok Chae, Busan (KR); Ho Cheol Shin, Seoul (KR); Sa Heum Kim, Seoul (KR); and Sang Soo Lee, Goyang-Si (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 Dec. 14, 2022, as Appl. No. 18/081,393.
Claims priority of application No. 10-2022-0069325 (KR), filed on Jun. 8, 2022.
Prior Publication US 2023/0411601 A1, Dec. 21, 2023
Int. Cl. H01M 4/36 (2006.01); H01M 4/04 (2006.01); H01M 4/139 (2010.01); H01M 4/62 (2006.01); H01M 10/0562 (2010.01)
CPC H01M 4/366 (2013.01) [H01M 4/0404 (2013.01); H01M 4/139 (2013.01); H01M 4/62 (2013.01); H01M 10/0562 (2013.01); H01M 2300/008 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A method of coating a solid electrolyte of a solid-state battery, the method comprising:
putting an electrode active material and a sulfide-based solid electrolyte into a rotating mixer;
operating the rotating mixer to rotate in a first direction while the rotating mixer revolves in a second direction, wherein the first direction is an opposite direction to the second direction; and
coating a surface of the electrode active material with the sulfide-based solid electrolyte in the rotating mixer during the operating the rotating mixer, to form a solid electrolyte layer on the surface of the electrode active material,
wherein the electrode active material and the solid electrolyte layer form a uniform core-shell structure,
wherein the rotating mixer revolves around a rotation axis,
wherein shear stress of about 0.10 MPa to about 0.25 MPa is applied to the rotation axis, and
wherein a revolving speed of the rotating mixer is set to about 1500 rpm to about 2000 rpm, and a revolving radius of the rotating mixer is set to about 85 mm to about 100 mm.