NMC622 Lithium Nickel Cobalt Manganese Oxide Cathode Powder (TOB-NMC-622)
OVERVIEW
NMC622 is a layered lithium nickel cobalt manganese oxide (LiNi0.6Co0.2Mn0.2O2) powder for preparing lithium-ion battery cathodes. It serves as the active material in an electrode formulation with conductive carbon and binder. TOB supplies the powder in sealed 500 g packs.
Item No: TOB-NMC-622
Brand: TOB New Energy
Country of origin: China
KEY FEATURES
NMC622 composition: LiNi0.6Co0.2Mn0.2O2
Layered oxide cathode active material
Median particle size (D50) standard of 4.0 ± 1.0 µm
BET specific surface area standard of 0.5 ± 0.2 m2/g
Tap density standard of 1.8 ± 0.2 g/cm3
Supplied in a sealed 500 g pack
APPLICATIONS
Lithium-ion cathode formulation and electrode preparation
Research benchmarking of cathode materials
Development of cylindrical, pouch and prismatic lithium-ion cells
Pilot-scale cathode coating
Composite cathode research for solid-state batteries
TECHNICAL SPECIFICATIONS
Material and supply
Specification | TOB information |
Chemical formula | LiNi0.6Co0.2Mn0.2O2 |
Median particle size (D50) | 4.0 ± 1.0 µm |
BET specific surface area | 0.5 ± 0.2 m2/g |
Tap density | 1.8 ± 0.2 g/cm3 |
pH | ≤11.5 |
Pack size | 500 g, sealed |
Minimum order listed by TOB | One bag |
TOB’s suggested electrode preparation starting points
Parameter | TOB guidance |
Cathode composition by weight | NMC622 : PVDF : carbon = 96 : 2 : 2 |
Initial dry blending | NMC622 and carbon for 15 minutes at 200 rpm before adding binder solution |
Solvent in the suggested formulation | Anhydrous NMP; solvent moisture below 300 ppm |
Slurry solids | 48–52%; target viscosity 4000–6000 mPa·s |
One-sided coating thickness | 80–120 µm wet; target 50–80 µm dry |
Target areal capacity | 2–4 mAh/cm2 |
Coating bake profile | Ramp at 80°C, then 120°C for 30 minutes |
Calendared electrode density | 3.20–3.40 g/cm3; check for 30–35% porosity |
Suggested electrolyte pairing | 1 M LiPF6 in EC:DMC (1:1:1 by volume) |
TOB presents these as starting points for an NMP/PVDF/carbon formulation and advises optimisation for the intended cell.
Storage and handling
Parameter | TOB guidance |
Storage | Keep sealed in the original packaging, away from sunlight and moisture |
Recommended storage conditions | 20 ± 10°C and ≤50% relative humidity |
Shelf life while sealed | One year; contact TOB for reassessment after expiry |
After opening | Maintain ≤30% relative humidity, reseal after use and use within 48 hours |
Before electrode batching | TOB instructs baking the powder at 120°C for 6 hours |