US 12,034,114 B2
Method of manufacturing solid electrolyte sheet, method of manufacturing negative electrode sheet for all-solid state secondary battery, and method of manufacturing all-solid state secondary battery
Shinji Imai, Kanagawa (JP); Hideyuki Suzuki, Kanagawa (JP); and Shin Ozawa, Kanagawa (JP)
Assigned to FUJIFILM Corporation, Tokyo (JP)
Filed by FUJIFILM Corporation, Tokyo (JP)
Filed on Sep. 28, 2020, as Appl. No. 17/033,952.
Application 17/033,952 is a continuation of application No. PCT/JP2019/014167, filed on Mar. 29, 2019.
Claims priority of application No. 2018-068662 (JP), filed on Mar. 30, 2018; application No. 2018-245384 (JP), filed on Dec. 27, 2018; and application No. 2019-060212 (JP), filed on Mar. 27, 2019.
Prior Publication US 2021/0013543 A1, Jan. 14, 2021
Int. Cl. H01M 10/0562 (2010.01); H01M 10/0525 (2010.01); H01M 10/0585 (2010.01)
CPC H01M 10/0562 (2013.01) [H01M 10/0525 (2013.01); H01M 10/0585 (2013.01); H01M 2300/0068 (2013.01); Y10T 29/49108 (2015.01)] 7 Claims
OG exemplary drawing
 
1. A method of manufacturing an all-solid state secondary battery, comprising:
forming a solid electrolyte sheet, comprising:
a step of performing preforming on inorganic solid electrolyte particles containing solid particles plastically deformable at 250° C. or lower; and
a step of performing shearing processing on one surface of the obtained preformed body,
wherein a solid electrolyte layer consisting of the inorganic solid electrolyte particles is formed;
forming a negative electrode sheet, comprising:
forming a negative electrode active material layer on a shearing processed surface of the solid electrolyte layer in the solid electrolyte sheet by pressure-bonding and laminating a negative electrode active material; and
forming a positive electrode active material layer on a surface of the negative electrode sheet, the surface being opposite to the negative electrode active material layer.