Carbon-Coated Na3V2(PO4)3 Cathode Powder for Sodium-Ion Batteries (>= 112 mAh/g at 0.1C)

Cat No:BMSPEM-0724

Description

This carbon-coated sodium vanadium phosphate powder from Eata Battery serves as a polyanionic cathode material for sodium-ion batteries. Chemical properties: Na 16.0 +/- 1.5 wt%, V 21.0 +/- 2.0 wt%, P 19.5 +/- 2.0 wt%, C 2.5 +/- 1 wt%; moisture < 1000 ppm; pH 6.0-9.0 (10% suspension). Physical characteristics: dark gray powder, uniform color, non-caking; particle size D10 >= 0.4 um, D50 5.0 +/- 2.0 um, D90 <= 20.0 um; bulk density >= 0.4 g/cm3; tap density >= 0.7 g/cm3; compaction density >= 1.8 g/cm3; specific surface area 25 +/- 5 m2/g; monoclinic crystal structure by XRD; submicron to nano secondary particle aggregates by SEM; electrical conductivity >= 1.0 x 10^-3 S/cm. Electrochemical characteristics (button cell, 2.5-4.3 V): discharge specific capacity >= 112 mAh/g at 0.1C, >= 110 mAh/g at 0.2C, >= 108 mAh/g at 1C; first Coulombic efficiency >= 95% at 0.2C.