ATOMFAIR® 18650 CYLINDRICAL CELL CAN ASSEMBLY 100 SETSRESEARCH & PRODUCTION GRADE
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This assembly kit is intended for 18650 lithium-ion battery cell fabrication and contains precision safety components. Improper storage or handling may compromise seal integrity, corrosion resistance, and safety device performance.
- Storage Environment: Store the assembly in a well-ventilated dry space at 0–35°C and ≤75%RH, away from fire, heat sources, and corrosive gases to maintain component integrity.
- Shelf Life: Use the assembly within one year of receipt to ensure compliance with specified burst and cut-off pressure tolerances.
- Gluing Process: Apply uniform coating of adhesive on both inner and outer sides of the sealing ring during cell assembly to prevent electrolyte leakage.
- Safety Device Integrity: Do not exceed the PPTC non-actuation current of 3.0A or the cap internal resistance range of 12-20 mΩ to avoid premature safety device activation.
- Corrosion Resistance: The assembly meets salt spray test Grade 10 after 5 hours; avoid prolonged exposure to high-humidity or corrosive atmospheres.
How do the PPTC non-actuation current (3.0A) and actuation current (6.0A) ensure overcurrent protection without nuisance tripping in 18650 cells?
The PPTC is designed with a 3.0A non-actuation current to allow normal operation currents without tripping, and a 6.0A actuation current to protect against overcurrent. At 10A, the maximum actuation time is less than 8 seconds. The cap internal resistance is 12–20 mΩ and PPTC resistance is 12–15 mΩ, adding minimal resistance to the cell.
What are the dimensional constraints for integrating the pre-welded aluminum tab (15×3×0.15 mm) with standard 18650 cell winding and can welding processes?
The electrode tab dimensions are 15×3×0.15 mm (aluminum), pre-welded to the safety cap assembly. This tab must align with cell winding and can welding without interfering with the insulating ring (13.2×0.90×0.3 mm) and sealing ring (17.40×4.3×0.5 mm). The cut-off and burst pressures (0.9–1.4 MPa and 1.8–2.5 MPa) constrain the mechanical integrity after welding.
What storage conditions are required to maintain the safety and shelf life of the nickel-plated carbon steel cell can assembly?
Store at ambient temperature 0–35°C with relative humidity ≤75% RH in a well-ventilated, dry space free of corrosive gases, away from fire and heat sources. Shelf life is 1 year under these conditions. The salt spray test ensures Grade 10 corrosion resistance after 5 hours, indicating robust nickel plating.
This 18650 cell can assembly kit provides pre-welded aluminum tabs and all structural components for cylindrical cell fabrication, with specified safety cap performance including cut-off pressure of 0.9-1.4 MPa and burst pressure of 1.8-2.5 MPa.
Positive
- Pre-welded aluminum tabs for efficiency: The cap assembly includes a pre-welded 15mm × 3mm × 0.15mm aluminum tab, reducing secondary processing steps and enabling convenient welding operations for battery manufacturers.
- Complete assembly kit for immediate use: Each set contains all matched structural parts including cell can, safety cap assembly, and insulating gaskets, ready for cell filling and welding without additional component sourcing.
Trade-offs
- Limited shelf life of 1 year: The assembly has a specified shelf life of 1 year under proper storage conditions, necessitating timely usage and inventory rotation to avoid performance degradation.
- Controlled storage environment required: Storage requires ambient temperature 0–35°C and relative humidity ≤75%RH in a well-ventilated, dry space free of corrosive gases, away from fire and heat sources to maintain component integrity.
Every advanced material, component, equipment, and instrument in our catalog is backed by rigorous testing. We maintain strict internal quality management frameworks and align with CE conformity metrics to deliver transparent, reproducible performance data via our public open-science repository.
To request raw batch performance data, submit formal vendor registration paperwork, or execute a fast-turnaround R&D manufacturing loop, contact us at inquiry@atomfair.com.
Item is dispatched under the Atomfair Shipping & Delivery Framework (Free worldwide shipping on orders over $59 USD excl. heavy equipment). Return is governed by the Atomfair Return & Refund Policy (7-day technical return window).
