NVP-2 Sodium-Ion Battery Cathode Material for High-Rate Performance

NVP-2 Sodium-Ion Battery Cathode Material for High-Rate Performance

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Specifications

Item Unit Test Result Test Method / Equipment
Product Model / NVP-2 /
Product Name / Sodium Vanadium Phosphate /
Appearance / Gray-black powder, uniform color, no agglomeration Visual inspection
Particle Size Distribution D10 μm 0.504 Laser diffraction method: particle refractive index 1.74; particle absorption rate 1; dispersant: water; dispersant refractive index: 1.33; Malvern Mastersizer 2000
Particle Size Distribution D50 μm 6.490 Same as above
Particle Size Distribution D90 μm 17.299 Same as above
Specific Surface Area m²/g 28.75 BET method; F-Sorb 2400 surface area analyzer
Moisture ppm 865 Karl Fischer coulometric method; AKF-3N
Tap Density g/cm³ 0.71 Tap density tester; 9000 taps
Carbon (C) % 3.03 Carbon-sulfur analyzer; NJD-80
pH / 6.68 10% suspension; Leici PHS-2F
Sodium (Na) % 16.21 ICP-OES test
Vanadium (V) % 20.03 ICP-OES test
Phosphorus (P) % 18.73 ICP-OES test
Initial Discharge Capacity at 0.2C mAh/g 110.9 Electrochemical test system; voltage range 2.5–4.3 V; CC/CV
Initial Discharge Efficiency at 0.2C % 99.11 Electrochemical test system; voltage range 2.5–4.3 V; CC/CV

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