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Cathode Material (LiMn₂O₄)

▶ Basic Specifications

Model：

LMO-19S

Chemical formula：

LiMn₂O₄

Specifications：

Project Unit Standard
value		 Typical
value		 Test equipment and
methods
chemical components Li % 3.80~4.60 4.13 AAS/ICP
Mn % 58.00~60.00 58.40 Ferrous Sulfate Titration
Impurities Fe ppm ≦100 30 AAS/ICP
Ni ppm ≦100 40 AAS/ICP
Na ppm ≦3500 2200 AAS/ICP
Cu ppm ≦20 7 AAS/ICP
Particle size
distribution		 D10 μm ≧5.00 7.0 MasterSize2000,ParticleSize
analyser;Hydro2000MU;
Sample-size:2Kg ,
Dispersant: water
Refractive index ：1.33
D50 μm 17.00~22.00 19.0
D90 μm ≦45.00 38.0
Dmax μm ≦75.00 61.0
Crystal structure / Measured / XRD
pH / 7.0~10.0 7.55 pH值
Moisture ppm ≦700 400 (150˚CVacuum drying 2h)
Specific surface area m²/g 0.20~0.70 0.45 3H-2000 type
Adsorption: high purity
N2:He=4:1
BET tube: 9mm U-shaped tube
Tap density g/cm³ ≧1.7 1.8 Tap density meter
Vibration frequency ：100~300 times/min
amplitude：3mm，
Vibration times: 4000 ，
Graduated cylinder ：100ml，
Sample size ：100g
First discharge capacity mAh/g ≧117.0 118.0 CR2032 battery
0.1C/0.1C，4.3~3.0V
First efficiency % ≧93.0 95.0
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