Quaternary Layered Ni-rich Lithium ion Battery Cathode Material NCMA
AOT
Xiamen, China
10-25 working days
50 Sets/Month
Quaternary Layered Ni-rich cathode material NCMA, with a specific capacity of 230mAh/g and a tapped density of 3.23g/cm³, has low lithium salt residues (LiOH 1845ppm). Suitable for high - density electrodes of 3.2g/cm³, its ultra - high - nickel system of 56.32% balances energy density and cycle life, making it the preferred option for power batteries.
Quaternary Layered Ni-rich cathode material NCMA (nickel - cobalt - manganese - aluminum system) has a core nickel content of 56.32%, offering a high specific capacity of 230mAh/g and over 500 - cycle stability. Designed for ultra - high - energy - density batteries, the quaternary layered Ni-rich cathode material NCMAfeatures precise particle size control (D50=6.032μm, D90=8.525μm) and a high tapped density of 3.23g/cm³. This suits electrode processes with a high - density of 3.2g/cm³. Its specific surface area of 0.87m²/g effectively suppresses side reactions. The chemical system strictly controls lithium salt residues (LiOH≤1845ppm, Li2CO3≤1106ppm), with low sodium impurities at 48ppm. Its weak alkaline pH of 12.1 is compatible with mainstream electrolytes. With cobalt optimized to 2.43wt% and manganese to 0.83wt%, it improves thermal stability and cuts material costs. This provides safety and performance for high - end applications like power batteries and drone power sources.
Item
Index
Typical Value
Item
Index
Typical Value
Physical Properties
D10(um)
4.1±1.5
4.284
Tap Density(g/cm3)
≥1.90
3.23
D50(um)
6.5±1.5
6.032
Compacted density (g/cm3)
2.80
3.2
D90(um)
9.0±1.5
8.525
SSA(g/cm3)
0.8±0.3
0.87
Moisture(ppm)
≤300
221
PH
≤12.5
12.1
Chemical Properties
Ni (wt.%)
56.4±3.0
56.32
(ppm)
<50
11
Co (wt.%)
2.4±0.3
2.43
(ppm)
<30
9
Mn (wt.%)
0.85±0.2
0.83
(ppm)
<50
1
Li (wt.%)
7.2±0.3
7.32
(ppm)
<50
1
LiOH (ppm)
≤3000
1845
(ppm)
<80
25
Li2CO3 (ppm)
≤3000
1106
(ppm)
<80
31
Na (ppm)
≤200
48
(ppb)
<50
9
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FAQ
Q1: Does the nickel content of 56.32% affect thermal runaway safety?
A: Aluminum doping and the synergistic stabilization of manganese and cobalt raise the DSC exothermic peak temperature by 15℃ compared to regular NCM. It can pass the 150℃ thermal box test with conventional electrolytes.
Q2: How are LiOH/Li2CO3 residues controlled to reduce battery impact?
A: Before leaving the factory, it undergoes pure water washing and CO2 treatment. The measured total lithium salt residue is 2951ppm (standard≤6000ppm). It is recommended to pre - add phosphoric acid - based additives to neutralize surface alkalinity during slurry processing.
Q3: Does the D50 particle size of 6.032μm affect electrode processing efficiency?
A: After rheological optimization, this particle size distribution can reduce slurry viscosity by 20%, increasing coating speed to 45m/min without cracking. It suits high - speed continuous production with 8μm copper foil.
Q4: Is it compatible with a 4.4V high - voltage system?
A: After testing at 4.4V for 500 cycles, the capacity retention rate exceeds 88%. It is suggested to use lithium bis - fluorosulfonylimide (LiFSI) electrolyte and ceramic - coated separators.
Q5: What's the effect of sodium impurities at 48ppm on suppressing battery self - discharge?
A: Sodium content is strictly controlled below 50ppm (standard≤200ppm). After 100 cycles, the self - discharge rate is less than 3%/month, significantly better than the industry's 5% benchmark.
