	US 11,996,518 B2
	Solid electrolyte membrane, method for manufacturing the same and all-solid-state battery comprising the same
Eun-Bee Kim, Daejeon (KR); Jung-Pil Lee, Daejeon (KR); Ji-Hoon Ryu, Daejeon (KR); and Suk-Woo Lee, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/264,604
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Dec. 19, 2019, PCT No. PCT/KR2019/018146 § 371(c)(1), (2) Date Jan. 29, 2021, PCT Pub. No. WO2020/130695, PCT Pub. Date Jun. 25, 2020.
Claims priority of application No. 10-2018-0167832 (KR), filed on Dec. 21, 2018.
Prior Publication US 2021/0336294 A1, Oct. 28, 2021
Int. Cl. H01M 10/0565 (2010.01); B32B 5/02 (2006.01); B32B 27/12 (2006.01); B32B 27/28 (2006.01); B32B 37/06 (2006.01); B32B 37/10 (2006.01); B32B 37/18 (2006.01); H01M 10/052 (2010.01)

CPC H01M 10/0565 (2013.01) [B32B 5/022 (2013.01); B32B 27/12 (2013.01); B32B 27/285 (2013.01); B32B 37/06 (2013.01); B32B 37/10 (2013.01); B32B 37/185 (2013.01); B32B 2260/023 (2013.01); B32B 2260/046 (2013.01); B32B 2262/0284 (2013.01); B32B 2305/026 (2013.01); B32B 2367/00 (2013.01); B32B 2371/00 (2013.01); B32B 2457/10 (2013.01); H01M 10/052 (2013.01); H01M 2300/0082 (2013.01); H01M 2300/0094 (2013.01)]

11 Claims

1. A method for manufacturing a solid electrolyte membrane for an all-solid-state battery, comprising the steps of:

stacking a first protective layer, a first film-type solid electrolyte material, a porous substrate, a second film-type solid electrolyte material and a second protective layer successively to prepare a laminate structure;

carrying out pressurization of the laminate structure so that the first and the second solid electrolyte materials are pressed into the porous substrate and pores of the porous substrate are filled with the first film-type solid electrolyte material and the second film-type solid electrolyte material;

removing the first protective layer and the second protective layer,

wherein the pressurization is carried out by a roll-press process,

wherein a first release film and a second release film is further disposed on each of both surfaces of the laminate structure before the pressurization, and the first protective layer, the second protective layer and the first release film and the second release film are removed after the pressurization, and

wherein the first protective layer and the second protective layer are the same composition as the porous substrate.