US 12,407,000 B2
Flexible electrode, secondary battery including the same, and flexible secondary battery
Yo-Han Kwon, Daejeon (KR); Sang-Young Lee, Ulsan (KR); Ju-Myung Kim, Ulsan (KR); In-Sung Uhm, Daejeon (KR); Jae-Hyun Lee, Daejeon (KR); and Joonwon Lim, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/285,006
Filed by LG Chem, Ltd., Seoul (KR)
PCT Filed Dec. 3, 2019, PCT No. PCT/KR2019/016960
§ 371(c)(1), (2) Date Apr. 13, 2021,
PCT Pub. No. WO2020/116912, PCT Pub. Date Jun. 11, 2020.
Claims priority of application No. 10-2018-0153828 (KR), filed on Dec. 3, 2018.
Prior Publication US 2021/0313587 A1, Oct. 7, 2021
Int. Cl. H01M 4/66 (2006.01); H01M 4/62 (2006.01); H01M 4/80 (2006.01); H01M 10/0525 (2010.01); H01M 10/647 (2014.01); H01M 50/46 (2021.01)
CPC H01M 4/667 (2013.01) [H01M 10/0525 (2013.01); H01M 10/647 (2015.04); H01M 50/46 (2021.01); H01M 4/622 (2013.01); H01M 4/663 (2013.01); H01M 4/806 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A flexible electrode, comprising:
a current collector;
an electrode layer positioned at a top of the current collector;
a first support layer positioned at a top of the electrode layer;
a second support layer positioned at a bottom of the current collector; and
a second electrode layer between the current collector and the second support layer, wherein the electrode layer and the second electrode layer are electrically coupled to the current collector,
wherein each of the first support layer and the second support layer is a conductive coating layer-containing porous polymer substrate including:
a porous polymer substrate, and a conductive coating layer positioned on a surface of the porous polymer substrate and comprising a conductive material and a dispersing agent, and
the porous polymer substrate is a non-woven web provided with a plurality of polymer fibers and a pore structure interconnected by the plurality of polymer fibers.