US 12,407,026 B2
Method for producing all-solid-state battery
Genki Nogami, Niigata (JP); Keita Noguchi, Niigata (JP); Aki Katori, Niigata (JP); Naoto Yamashita, Osaka (JP); Takashi Mukai, Osaka (JP); and Masahiro Yanagida, Osaka (JP)
Assigned to MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo (JP); and NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, Tokyo (JP)
Appl. No. 17/437,556
Filed by MITSUBISHI GAS CHEMICAL COMPANY, INC., Tokyo (JP); and NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, Tokyo (JP)
PCT Filed Mar. 4, 2020, PCT No. PCT/JP2020/009205
§ 371(c)(1), (2) Date Sep. 9, 2021,
PCT Pub. No. WO2020/184340, PCT Pub. Date Sep. 17, 2020.
Claims priority of application No. 2019-044522 (JP), filed on Mar. 12, 2019.
Prior Publication US 2022/0158249 A1, May 19, 2022
Int. Cl. H01M 10/0585 (2010.01); H01M 10/0562 (2010.01); B05D 1/26 (2006.01); B05D 3/02 (2006.01); H01M 4/04 (2006.01)
CPC H01M 10/0585 (2013.01) [H01M 10/0562 (2013.01); B05D 1/26 (2013.01); B05D 3/0254 (2013.01); H01M 4/0404 (2013.01); H01M 2300/0071 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for producing an all-solid-state battery having a solid electrolyte layer between a positive electrode layer and a negative electrode layer, the method comprising:
preparing a solid electrolyte solution by dissolving a solid electrolyte in an organic solvent, and obtaining a coating solution by suspending fine particles which are insoluble in the solid electrolyte solution;
coating at least one of the positive electrode layer and the negative electrode layer with the coating solution; and
removing the solvent from the coated coating solution to deposit the solid electrolyte on at least one of the positive electrode layer and the negative electrode layer,
wherein the solid electrolyte consists of at least one selected from the group consisting of LiBH4, an LiBH4-LiI-based material, 3LiBH4-LiI, an LiBH4-P2S5-based material, 9LiBH4-P2S5, an LiBH4-P2I4-based material, 9LiBH4-P2I4, 85LiBH4-15P2I4, Li2B12H12, Li2B10H10, LiCB11H12 and LiCB9H10.