Quick Answer
Battery recycling plants prevent LFP and NMC cross-contamination by identifying chemistry before processing, segregating uncertain loads, running planned campaigns, controlling carryover in conveyors and dust systems, verifying cleanout, and storing products separately. A mechanically flexible line can process more than one chemistry, but it does not automatically produce chemistry-pure outputs. The allowable carryover should be based on downstream buyer or refining specifications. |
Chemistry control begins at receiving
Supplier declarations, labels, battery-management data and visual identification can support classification, but uncertain or damaged batteries may need a separate path. The receiving system should assign a chemistry confidence level rather than force every load into a precise category. Unknown mixtures can be processed as a controlled mixed campaign if the downstream outlet accepts them.
Use campaign planning to reduce transitions
Running larger blocks of one chemistry reduces the number of cleanouts and off-spec transition lots. The schedule should account for feed availability, storage capacity and buyer demand. Production records must state when the final container of one campaign ends and the first container of the next begins. Transition material may require separate packaging.
Identify every place material can remain
Carryover can collect in hopper corners, screw conveyors, crusher housings, screens, cyclones, filters, ducts and silos. Fine black mass in dust systems may continue discharging after the main equipment appears empty. A cleanout map should list access points, method, expected retained mass and verification. Equipment design with fewer dead zones can reduce both time and contamination.
Verify cleanout with evidence
A visual check alone may miss fine residues. The plant can use timed purge material, weight reconciliation and targeted samples from transition output. Acceptance limits should come from product specifications. Cleanout results can be trended to improve procedures and establish the minimum practical campaign size.
Keep finished products and data segregated
Dedicated or clearly cleaned containers, labels, storage zones and transfer equipment protect quality after processing. Laboratory results must remain linked to the correct lot. If material is intentionally blended, the calculation and approval should be documented. Warehouse discipline is as important as process separation.
Where Jereh NER Fits
Jereh NER states that its lithium-ion battery recycling system can handle LFP and ternary battery streams. For a multi-chemistry project, the final design should add customer-specific campaign, cleanout, dust-system and product-storage requirements. Compatibility should not be presented as a guarantee of zero carryover.
Conclusion
Multi-chemistry capability is an operating system as much as an equipment feature. Receiving identification, campaign discipline, cleanable design and product traceability determine whether outputs meet specification.
Frequently Asked Questions
Can LFP and NMC be processed on the same line?
Yes in some configurations, but campaign, cleanout and downstream product requirements must be defined.
Where does the most persistent carryover occur?
Fine-material collection points such as filters, cyclones, ducts and silos can retain product after the main line empties.
What happens to transition material?
It may be isolated, reprocessed or sold as a mixed lot under an agreed specification.
Does chemistry flexibility eliminate sorting?
No. Identification and segregation remain important for safety, quality and downstream economics.
