Transition metal precursor having low tap density and lithium transition metal oxide having high particle strength
Disclosed are a transition metal precursor for preparation of a lithium transition metal oxide, in which a ratio of tap density of the precursor to average particle diameter D50 of the precursor satisfies the condition represented by Equation 1 below, and a lithium transition metal oxide prepared using the same. 0 < Tap density Average particle diameter D 50 of transition of metal precursor < 3500 ( g / cc · cm ) ( 1 )
1. A transition metal precursor for preparation of a lithium transition metal oxide,
wherein precursor particles constituting the transition metal precursor are transition metal hydroxide particles,
wherein the transition metal hydroxide particles are a compound represented by Formula 2 below:
M(OH 1-x ) 2 (2)
wherein M consists of nickel (Ni), cobalt (Co), and manganese (Mn); and 0≤x≤0.5; and
wherein a tap density of the transition metal precursor is from 1.3 g/cc to 1.6 g/cc, and a ratio of tap density to average particle diameter D50 of the precursor satisfies a condition represented by Equation 1 below:
2000
<
Tap
density
Average
particle
diameter
D
50
of
transition
of
metal
precursor
<
3500
(
g
/
cc
·
cm
)
.
(
1
)
2. The transition metal precursor according to claim 1 , wherein the transition metal precursor has an average particle diameter D50 of 1 to 30 μm.