US 12,132,200 B2
Positive electrode for secondary battery, method of preparing the same, and lithium secondary battery including the same
Ju Ri Kim, Daejeon (KR); Seok Koo Kim, Daejeon (KR); Sun Kyu Kim, Daejeon (KR); Young Sik Kim, Ulsan (KR); Jooyong Song, Daejeon (KR); Hyun Woo Kim, Ulsan (KR); and Young Jun Lim, Ulsan (KR)
Assigned to LG Energy Solution, Ltd., Seoul (KR)
Appl. No. 17/052,037
Filed by LG Energy Solution, Ltd., Seoul (KR)
PCT Filed Sep. 6, 2019, PCT No. PCT/KR2019/011573
§ 371(c)(1), (2) Date Oct. 30, 2020,
PCT Pub. No. WO2020/050694, PCT Pub. Date Mar. 12, 2020.
Claims priority of application No. 10-2018-0107294 (KR), filed on Sep. 7, 2018.
Prior Publication US 2021/0234160 A1, Jul. 29, 2021
Int. Cl. H01M 4/505 (2010.01); H01M 4/04 (2006.01); H01M 4/36 (2006.01); H01M 4/38 (2006.01); H01M 4/525 (2010.01); H01M 10/0525 (2010.01); H01M 4/02 (2006.01)
CPC H01M 4/382 (2013.01) [H01M 4/0404 (2013.01); H01M 4/364 (2013.01); H01M 4/505 (2013.01); H01M 4/525 (2013.01); H01M 10/0525 (2013.01); H01M 2004/028 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A positive electrode for a secondary battery, the positive electrode comprising a positive electrode active material and a lithium-based alloy, and a positive electrode material mixture layer in which the positive electrode active material and the lithium-based alloy are mixed,
wherein the positive electrode active material is a lithium transition metal oxide including at least one transition metal cation selected from the group consisting of cobalt (Co), nickel (Ni), and manganese (Mn), and
wherein the lithium-based alloy comprises at least one selected from the group consisting of a Li—Al-based alloy, a Li—Si-based alloy, a Li—Sn-based alloy, a Li—Bi-based alloy, and a Li—Sb-based alloy.