US 12,068,490 B2
Pouch-type secondary battery and method for manufacturing the same
Jae Gyu Byun, Daejeon (KR); Dong Ju Kim, Daejeon (KR); Sang Mo Kim, Daejeon (KR); Jin Go Kim, Daejeon (KR); Sun Min Park, Daejeon (KR); and Taek Eon Jeong, Daejeon (KR)
Assigned to SK ON CO., LTD., Seoul (KR)
Filed by SK ON CO., LTD., Seoul (KR)
Filed on Jul. 19, 2022, as Appl. No. 17/868,603.
Claims priority of application No. 10-2021-0094464 (KR), filed on Jul. 19, 2021; and application No. 10-2022-0009245 (KR), filed on Jan. 21, 2022.
Prior Publication US 2023/0017233 A1, Jan. 19, 2023
Int. Cl. H01M 50/184 (2021.01); H01M 10/04 (2006.01); H01M 50/105 (2021.01); H01M 50/178 (2021.01); H01M 10/60 (2014.01)
CPC H01M 50/184 (2021.01) [H01M 10/0481 (2013.01); H01M 10/049 (2013.01); H01M 50/105 (2021.01); H01M 50/178 (2021.01); H01M 10/60 (2015.04)] 5 Claims
OG exemplary drawing
 
1. A pouch-type secondary battery comprising:
an electrode assembly including a first electrode plate, a second electrode plate, and a separator disposed between the first electrode plate and the second electrode plate; and
a pouch film structured to accommodate the electrode assembly and including a first side sealing portion, a second side sealing portion, an upper sealing portion including end portions connected to the first and second side sealing portions, and a folded portion disposed on an end of the first side sealing portion and an end of the second side sealing portion,
wherein a negative electrode lead connected to the electrode assembly protrudes from the first side sealing portion, and a positive electrode lead connected to the electrode assembly protrudes from the second side sealing portion, and
wherein the folded portion is folded in one direction toward a bottom portion of the pouch film,
wherein the folded portion comprises a pressed portion including an end having a folded shape and connected to the bottom portion of the pouch film.