US 11,837,691 B2
Battery manufacturing method
Tomohiro Kaburagi, Kanagawa (JP); Kazuyuki Yoda, Kanagawa (JP); Eiji Minegishi, Kanagawa (JP); Noboru Yamauchi, Kanagawa (JP); Yusuke Emori, Kyoto (JP); Hideki Ishitani, Kyoto (JP); and Masanori Shimada, Kyoto (JP)
Assigned to Nissan Motor Co., Ltd., Yokohama (JP)
Appl. No. 16/979,893
Filed by Nissan Motor Co., Ltd., Yokohama (JP)
PCT Filed Mar. 20, 2019, PCT No. PCT/JP2019/011845
§ 371(c)(1), (2) Date Sep. 11, 2020,
PCT Pub. No. WO2019/198454, PCT Pub. Date Oct. 17, 2019.
Claims priority of application No. 2018-074689 (JP), filed on Apr. 9, 2018.
Prior Publication US 2021/0013539 A1, Jan. 14, 2021
Int. Cl. H01M 10/04 (2006.01); H01M 10/0585 (2010.01); H01M 10/44 (2006.01); H01M 4/13 (2010.01); H01M 4/139 (2010.01)
CPC H01M 10/0468 (2013.01) [H01M 4/13 (2013.01); H01M 4/139 (2013.01); H01M 10/0418 (2013.01); H01M 10/0585 (2013.01); H01M 10/446 (2013.01); Y10T 29/4911 (2015.01); Y10T 29/49108 (2015.01); Y10T 29/49115 (2015.01); Y10T 29/53135 (2015.01)] 5 Claims
OG exemplary drawing
 
1. A battery manufacturing method comprising:
forming at least one unit cell comprising a positive electrode, a negative electrode, and a separator including an electrolyte layer disposed between the positive electrode and the negative electrode, wherein the forming of the at least one unit cell comprises:
forming the positive electrode by coating a positive electrode active material layer containing an electrolytic solution on a positive electrode current collector,
forming the negative electrode by coating a negative electrode active material layer containing an electrolytic solution on a negative electrode current collector, and
interposing the separator between the positive electrode and the negative electrode;
applying pressure to the at least one unit cell by bringing a pressing surface of a pressing part into surface contact with one unit cell of the at least one unit cell or with two or more stacked unit cells of the at least one unit cell from a stacking direction; and
charging the one unit cell or the two or more stacked unit cells after performing the applying of the pressure to the one unit cell or the two or more stacked unit cells,
the battery manufacturing method being carried out such that the positive electrode and the negative electrode are formed without the positive electrode active material layer or the negative electrode active material layer being subjected to a drying process performed through heating.