US 12,148,881 B2
Composite electrolyte membrane and all-solid-state battery comprising the composite electrolyte membrane
Ji-Hoon Ryu, Daejeon (KR); Eun-Bee Kim, Daejeon (KR); Suk-Woo Lee, Daejeon (KR); and Jung-Pil Lee, Daejeon (KR)
Assigned to LG ENERGY SOLUTION, LTD., Seoul (KR)
Appl. No. 17/260,058
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Oct. 10, 2019, PCT No. PCT/KR2019/013300
§ 371(c)(1), (2) Date Jan. 13, 2021,
PCT Pub. No. WO2020/076099, PCT Pub. Date Apr. 16, 2020.
Claims priority of application No. 10-2018-0121266 (KR), filed on Oct. 11, 2018.
Prior Publication US 2021/0280908 A1, Sep. 9, 2021
Int. Cl. H01M 10/0565 (2010.01); H01M 10/0525 (2010.01); H01M 10/0562 (2010.01); H01M 10/0585 (2010.01)
CPC H01M 10/0565 (2013.01) [H01M 10/0525 (2013.01); H01M 10/0562 (2013.01); H01M 10/0585 (2013.01); H01M 2300/0094 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A composite electrolyte membrane for a battery, comprising:
an electrolyte layer and a phase change layer stacked in a sequential order,
wherein the phase change layer comprises a porous sheet including pores, and wherein the pores of the porous sheet are filled with a filler,
wherein the porous sheet includes a first polymer resin, and the filler exists in a solid state at 26° C. or less and a liquid state at 35° C. or above, and
wherein the electrolyte layer comprises a polymer-based solid electrolyte,
wherein the electrolyte layer comprises a second polymer resin layer and a lithium salt layer,
wherein the lithium salt layer is formed by coating a lithium salt on all or at least part of a surface of the second polymer resin layer that is in contact with the phase change layer.