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Lithium Ion Battery Cathode Material NMC622 or NCM622 Ni:Co:Mn=65:15:20 Lithium Nickel Cobalt Manganese Oxide
I. Specification
|
Item |
Unit |
Standard |
Typical |
|
|
ChemicalCompositions |
Li |
% |
7.2±0.6 |
7.1 |
|
Ni+Mn+Co |
% |
59.0±1.0 |
58.50 |
|
|
Impurity |
Fe |
ppm |
≤100 |
45 |
|
Na |
ppm |
≤100 |
48 |
|
|
Cu |
ppm |
≤50 |
2 |
|
|
Particle Size Distribution |
D10 |
μm |
≥5.000 |
10.8 |
|
D50 |
μm |
11.5 ± 1.5 |
11.6 |
|
|
D90 |
μm |
≤25.0 |
19.6 |
|
|
Dmax |
μm |
≤45.00 |
28.5 |
|
|
XRD Lattice Type |
/ |
/ |
/ |
|
|
pH |
/ |
≤12.0 |
11.7 |
|
|
Moisture |
ppm |
≤500 |
350 |
|
|
BET Surface Area |
m2/g |
0.35±0.15 |
0.35 |
|
|
Tap Density |
g/cm3 |
≥2.1 |
2.4 |
|
|
1stDischarge Capacity （CR2032, 0.1/0.1C, 3.0 ~ 4.3V v.s. Li） |
mAh/g |
≥178.0 |
181.5 |
|
|
1stefficiency |
% |
≥85.00 |
89.6 |
|
III. Coin cell charging and discharging curve
The materials designed capacity is 162～168mAh/g（full cell，0.5C)
Suggest the recipe as followes:
T61A：SP：PVDF（HSV900）=95.2%:2.5%:2.3%
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