US 12,266,800 B2
Electrode and secondary battery including the same
Tae Gon Kim, Daejeon (KR); Sin Young Park, Daejeon (KR); Bo Ram Lee, Daejeon (KR); Hyung Man Cho, Daejeon (KR); Tae Gu Yoo, Daejeon (KR); and Min Kwak, Daejeon (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/598,617
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Sep. 28, 2020, PCT No. PCT/KR2020/013285
§ 371(c)(1), (2) Date Sep. 27, 2021,
PCT Pub. No. WO2021/066494, PCT Pub. Date Apr. 8, 2021.
Claims priority of application No. 10-2019-0122964 (KR), filed on Oct. 4, 2019.
Prior Publication US 2022/0158195 A1, May 19, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 4/62 (2006.01); H01M 4/02 (2006.01)
CPC H01M 4/625 (2013.01) [H01M 2004/021 (2013.01); H01M 2004/028 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An electrode comprising an electrode active material layer,
wherein the electrode active material layer comprises an electrode active material and a conductive agent,
wherein the conductive agent comprises a first conductive agent and a second conductive agent,
wherein the first conductive agent comprises a secondary particle in which a plurality of graphene sheets are arranged in different directions and a portion of one graphene sheet is connected to a portion of adjacent another graphene sheet,
the second conductive agent comprises a carbon nanotube structure in which 2 to 5,000 single-walled carbon nanotube units are bonded side by side in a single plane,
wherein the carbon nanotube structures are interconnected in the electrode to form a network structure, and
wherein the carbon nanotube structure has an average diameter of 2 nm to 200 nm.