US 11,767,230 B2
Positive electrode active material precursor, preparation method thereof, positive electrode active material prepared using same, positive electrode, and secondary battery
Dong Hwi Kim, Daejeon (KR); Wang Mo Jung, Daejeon (KR); Dong Hun Lee, Daejeon (KR); Sung Bin Park, Daejeon (KR); Ji Hye Kim, Daejeon (KR); Hyung Man Cho, Daejeon (KR); and Jung Min Han, Daejeon (KR)
Assigned to LG Energy Solution, Ltd.
Appl. No. 16/762,721
Filed by LG Chem, Ltd., Seoul (KR)
PCT Filed Nov. 21, 2018, PCT No. PCT/KR2018/014375
§ 371(c)(1), (2) Date May 8, 2020,
PCT Pub. No. WO2019/103461, PCT Pub. Date May 31, 2019.
Claims priority of application No. 10-2017-0155469 (KR), filed on Nov. 21, 2017.
Prior Publication US 2021/0135195 A1, May 6, 2021
Int. Cl. H01B 1/08 (2006.01); H01M 4/00 (2006.01); C01G 53/00 (2006.01); C01G 53/04 (2006.01); H01M 4/02 (2006.01)
CPC C01G 53/006 (2013.01) [C01G 53/04 (2013.01); H01B 1/08 (2013.01); H01M 2004/028 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A positive electrode active material precursor comprising:
a transition metal hydroxide particle represented by Formula 1 below; and
a cobalt oxide particle and a manganese oxide particle directly attached to a surface of the transition metal hydroxide particle:
[NiaCobM1cM2d](OH)2  [Formula 1]
wherein, 0.8≤a<1, 0<b<0.2, 0≤c≤0.1, and 0≤d≤0.1, M1 is one or more selected from the group consisting of Mn and Al, and M2 is one or more selected from the group consisting of Ba, Ca, Zr, Ti, Mg, Ta, Nb, and Mo.