US 12,327,874 B2
Packaging for flexible secondary battery, and flexible secondary battery comprising same
In-Sung Uhm, Daejeon (KR); Yong-Hee Kang, Daejeon (KR); Byoung-Hyo Jung, Daejeon (KR); Min-Chul Jang, Daejeon (KR); and Jung-Hun Choi, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/776,065
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Nov. 20, 2020, PCT No. PCT/KR2020/016534
§ 371(c)(1), (2) Date May 11, 2022,
PCT Pub. No. WO2021/101343, PCT Pub. Date May 27, 2021.
Claims priority of application No. 10-2019-0151647 (KR), filed on Nov. 22, 2019.
Prior Publication US 2022/0393274 A1, Dec. 8, 2022
Int. Cl. H01M 50/121 (2021.01); H01M 50/105 (2021.01); H01M 50/122 (2021.01); H01M 50/129 (2021.01); H01M 50/133 (2021.01); H01M 50/136 (2021.01)
CPC H01M 50/121 (2021.01) [H01M 50/105 (2021.01); H01M 50/122 (2021.01); H01M 50/129 (2021.01); H01M 50/133 (2021.01); H01M 50/136 (2021.01)] 10 Claims
OG exemplary drawing
 
1. A packaging for a flexible secondary battery, comprising:
a first polymer resin layer;
a barrier layer formed on the first polymer resin layer to block water and gas; and
a second polymer resin layer formed on the barrier layer,
wherein the barrier layer is multi-layered, and comprises graphene, a dispersing agent, and pyrene as a flexible linking agent, in which there is π-π conjugation between the graphene and the pyrene;
wherein a thickness of the barrier layer is 30 to 999 nm.