US 12,113,201 B2
Method for manufacturing all-solid-state battery
Masafumi Matsunaga, Yokohama (JP)
Assigned to MTEK-SMART CORPORATION, Yokohama (JP)
Appl. No. 17/415,316
Filed by MTEK-SMART CORPORATION, Yokohama (JP)
PCT Filed Dec. 27, 2019, PCT No. PCT/JP2019/051614
§ 371(c)(1), (2) Date Jun. 17, 2021,
PCT Pub. No. WO2020/145214, PCT Pub. Date Jul. 16, 2020.
Claims priority of application No. 2019-002149 (JP), filed on Jan. 9, 2019.
Prior Publication US 2022/0069287 A1, Mar. 3, 2022
Int. Cl. H01M 4/139 (2010.01); B05D 1/02 (2006.01); B05D 1/36 (2006.01); B05D 7/00 (2006.01); B05D 7/24 (2006.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/62 (2006.01); H01M 10/052 (2010.01); H01M 10/0562 (2010.01); H01M 10/0585 (2010.01)
CPC H01M 4/139 (2013.01) [B05D 1/02 (2013.01); B05D 1/36 (2013.01); B05D 7/24 (2013.01); B05D 7/54 (2013.01); B05D 7/58 (2013.01); H01M 4/0404 (2013.01); H01M 4/0419 (2013.01); H01M 4/366 (2013.01); H01M 4/624 (2013.01); H01M 10/052 (2013.01); H01M 10/0562 (2013.01); H01M 10/0585 (2013.01); H01M 2300/0068 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A method for manufacturing an all-solid-state battery by forming electrode layers on positive and negative current collectors for the all-solid-state battery, forming an electrolyte layer on at least one of the electrode layers, and sandwiching a positive electrode layer, the electrolyte layer, and a negative electrode layer between the positive current collector and the negative current collector and in contact with each other or sandwiching the electrolyte layer between the electrode layers to form a laminated structure, comprising:
a preparing step;
a lamination step;
wherein in the preparing step, a slurry containing electrode active material and solvent, and a slurry containing electrolyte particles or electrolyte fibers and solvent are prepared,
in the lamination step, at least two slurries are alternatively applied to the current collector in a film to stack each slurry so that two or more layers are formed, and
a conductive agent is prepared so as to be contained in an independent slurry and applied on the electrolyte particles or fibers or on the electrode active material in a state where particles or fibers of the conductive agent are dispersed so that the particles or the fibers of the conductive agent do not form a film.