US 11,909,054 B2
Aluminum pouch film for secondary battery, and manufacturing method therefor
Sang Wook Chun, Hwaseong-si (KR); Jun Ho Shim, Seoul (KR); and Soon Sik Lee, Cheongju-si (KR)
Assigned to BTL ADVANCED MATERIAL CO. LTD., Hwaseong-si (KR)
Appl. No. 17/632,855
Filed by BTL ADVANCED MATERIAL CO. LTD., Hwaseong-si (KR)
PCT Filed Aug. 6, 2020, PCT No. PCT/KR2020/010451
§ 371(c)(1), (2) Date Feb. 4, 2022,
PCT Pub. No. WO2021/025513, PCT Pub. Date Feb. 11, 2021.
Claims priority of application No. 10-2019-0095787 (KR), filed on Aug. 6, 2019.
Prior Publication US 2022/0271373 A1, Aug. 25, 2022
Int. Cl. H01M 50/126 (2021.01); H01M 50/131 (2021.01); H01M 50/121 (2021.01); H01M 50/105 (2021.01); H01M 50/119 (2021.01); B32B 7/12 (2006.01); B32B 15/085 (2006.01); B32B 15/088 (2006.01); B32B 15/20 (2006.01); B32B 27/28 (2006.01); B32B 27/32 (2006.01); B32B 27/34 (2006.01); B32B 37/12 (2006.01); B32B 37/18 (2006.01)
CPC H01M 50/126 (2021.01) [B32B 7/12 (2013.01); B32B 15/085 (2013.01); B32B 15/088 (2013.01); B32B 15/20 (2013.01); B32B 27/281 (2013.01); B32B 27/32 (2013.01); B32B 27/34 (2013.01); B32B 37/12 (2013.01); B32B 37/185 (2013.01); H01M 50/105 (2021.01); H01M 50/119 (2021.01); H01M 50/121 (2021.01); H01M 50/131 (2021.01); B32B 2250/03 (2013.01); B32B 2255/06 (2013.01); B32B 2255/26 (2013.01); B32B 2307/306 (2013.01); B32B 2307/71 (2013.01); B32B 2307/714 (2013.01); B32B 2311/24 (2013.01); B32B 2323/10 (2013.01); B32B 2377/00 (2013.01); B32B 2379/08 (2013.01); B32B 2457/10 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An aluminum pouch film for a secondary battery, the film comprising:
an aluminum layer;
an outer resin layer formed on a first surface of the aluminum layer;
an inner resin layer formed on a second surface of the aluminum layer; and
an adhesive layer for adhering the aluminum layer to the inner resin layer,
wherein the outer resin layer includes a copolymer comprising a polyamide unit and a polyimide unit,
wherein the outer resin layer and the aluminum layer are directly adhered without an adhesive layer between the outer resin layer and the aluminum layer.