US 12,230,780 B2
Electrode for secondary battery and method of manufacturing the same
Jaewon Moon, Daejeon (KR); Ki Hoon Paeng, Daejeon (KR); Hyung Seok Han, Daejeon (KR); and Sang Myeon Lee, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/608,615
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Nov. 23, 2020, PCT No. PCT/KR2020/016544
§ 371(c)(1), (2) Date Nov. 3, 2021,
PCT Pub. No. WO2021/125588, PCT Pub. Date Jun. 24, 2021.
Claims priority of application No. 10-2019-0170940 (KR), filed on Dec. 19, 2019.
Prior Publication US 2022/0231267 A1, Jul. 21, 2022
Int. Cl. H01M 4/04 (2006.01); H01M 4/02 (2006.01); H01M 4/13 (2010.01); H01M 50/46 (2021.01)
CPC H01M 4/0404 (2013.01) [H01M 4/0435 (2013.01); H01M 4/0471 (2013.01); H01M 4/13 (2013.01); H01M 50/46 (2021.01); H01M 2004/021 (2013.01)] 9 Claims
OG exemplary drawing
 
1. An electrode for a secondary battery, comprising:
an electrode current collector including a coated portion and a non-coated portion,
an active material layer located on the coated portion of the electrode current collector,
an insulator disposed on a boundary surface between the coated portion and the non-coated portion while covering a perforated portion,
wherein the perforated portion is defined along a boundary between the coated portion and the non-coated portion, and
wherein the perforated portion includes a plurality of holes extending through both the electrode current collector and the insulator.