Solutions / Cathode Lines
Ternary (NCM/NCA) Cathode Line — Moisture-Isolated, High-Containment Turnkey Handling
OEB-4/5 glove-box unpacking, inert conveying with −40 °C dew point, precision dosing and automated sagger filling for Ni-rich chemistries.
Overview
Built for the Materials That Punish Ordinary Equipment
High-nickel ternary precursors and finished NCM/NCA powders are hygroscopic, moisture-sensitive and — in their precursor form — toxic. Water pickup degrades electrochemical performance; operator exposure is a hard compliance limit. This line is engineered as a sealed, dry, negative-pressure system from the first bag opening to the last sealed sagger.
Bulk Pro's in-house glove-box unpacking stations, inert conveying loops and degassing sagger fillers were developed on live ternary projects — not adapted from food-grade equipment.
- OEB-4/5 contained unpacking for toxic precursors
- Dry air / N₂ conveying, dew point to −40 °C
- Anti-bridging discharge for LiOH·H₂O and lithium salts
- Automatic sagger filling with degassing and sealing
Process Flow
Sealed, Dry and Traceable — End to End
Every stage is configurable to your OEL, dew-point and throughput requirements.
Glove-Box Unpacking
OEB-4/5 negative-pressure stations, bag-in / bag-out liners.
Inert Vacuum Conveying
Dry air / N₂ loop, dew point to −40 °C, O₂ monitored.
Loss-in-Weight Dosing
±0.1% gravimetric feeding of precursors and additives.
Blending & Homogenizing
Gentle ploughshare mixing preserving morphology.
Degassing Sagger Filling
Single / dual-station filling with weigh-check and vacuum.
Sealed Packing & Genealogy
Moisture-barrier sealing with MES lot traceability.
Why Bulk Pro for NCM/NCA
Containment, Dryness, Flow — Solved Together
OEB-4/5 Containment
Negative-pressure glove-box unpacking with bag-in/bag-out liners and secondary HEPA filtration — engineered to your compound's OEL.
Moisture Isolation
Dry-air or nitrogen conveying with dew point to −40 °C, automatic purge routines and continuous DCS monitoring.
Anti-Bridging Discharge
Vibration, massaging and rotary lump-breaking on every hopper handling LiOH, Li₂CO₃ and other poor-flowing salts.
Battery-Passport Traceability
MES batch genealogy links every precursor lot to every sealed sagger — exportable data for audits and cell-level recalls.
Line Specifications
Typical Configuration & Performance
Values below reflect delivered ternary projects; final specs follow material testing.
Ternary NCM/NCA Line — Typical Data
| Line throughput | 500 – 15,000 kg/h (parallel batching trains, stage-expandable) |
|---|---|
| Containment level | OEB-4 / OEB-5 design; operator exposure < 10 μg/m³ achievable (OEL-dependent) |
| Atmosphere control | Dry air / N₂ closed loop, dew point to −40 °C, O₂ & humidity alarmed |
| Dosing accuracy | ±0.1% loss-in-weight; sagger filling ±0.2% |
| Conveying mode | Vacuum and low-velocity dense-phase, fully sealed |
| Product-contact materials | SS316L as standard; ceramic / PTFE linings at wear points |
| Dust emission | < 10 mg/m³ with secondary safety filtration |
| Conveying | Vacuum + low-velocity dense-phase, fully sealed, pipe Ø 50–150 mm |
| Atmosphere | N₂ dry loop, O₂ & humidity monitored, alarm on drift |
| Control layer | DCS + MES with batch genealogy, dew-point interlocks, digital twin option |
Validated With Your Powder
Containment performance is leak-tested and measured with your own precursor before FAT sign-off — not extrapolated from datasheets.
- OEL-based containment engineering report
- Dew-point & purge validation at FAT
- Overseas commissioning, training & spares
Core Equipment in This Line
The Machines That Make Containment Real
Glove Box Bag Unloader
OEB-4/5 unpacking with bag-in/bag-out liners.
Loss-in-Weight Feeder
±0.1% gravimetric dosing, refill without stopping.
Vacuum Conveying
Sealed transfer on dry air / N₂.
Ploughshare Mixer
Gentle, fast homogenization.
Degassing Sagger Filler
Standard, degassing or dual-station variants.
Secondary Safety Filter
HEPA-grade backup for containment-critical venting.
Ternary Line — Engineering FAQ
What Cathode Plant Directors Ask First
Toxic or high-value ternary powders are unpacked inside OEB-4/5 glove-box stations operating under negative pressure, with bag-in/bag-out liners and integrated secondary filtration. Operator exposure below 10 μg/m³ is achievable depending on the compound's OEL, and every station is leak-tested before FAT.
The conveying loop runs on dry air or nitrogen with dew point down to −40 °C, transfer vessels are purged automatically between batches, and critical sections can be fully inerted. Dew point, pressure and oxygen levels are monitored continuously by the DCS with alarmed limits.
Yes. Bulk Pro applies anti-bridging discharge aids — vibration, massaging frames and rotary lump breakers — on silos and hoppers handling lithium hydroxide, lithium carbonate and other poor-flowing salts, matched to the measured flow properties of your specific lot.
Live Line Operations & 3D Process
See the Line Running Inside Tier-1 Plants
Watch our dust-free conveying and ±0.1% dosing systems running live inside Tier-1 battery material plants.
3D animated line demo · Unpacking → Conveying → Dosing → Mixing → Packaging · Sound off for autoplay
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