Standardizing Power: Sodium-Ion 18650 Cells by Siri TechnoFabs
The industry standard, evolved. The **sodium-ion 18650** cell format combines the ubiquitous cylindrical design of lithium batteries with the cost-efficiency and safety of sodium chemistry, offering a drop-in solution for modern battery packs.
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Why Choose Sodium-Ion 18650?
Adopting the **sodium-ion 18650** format allows manufacturers to leverage existing pack assembly lines while reducing BOM costs.
Manufacturing Compatible
Because these cells share the exact dimensions (18mm x 65mm) of traditional lithium cells, pack assemblers can use existing spot welding and racking equipment. Consequently, retooling costs are minimized.
Reduced Material Cost
Sodium is abundant and does not require cobalt. Therefore, the raw material cost for these cells is significantly lower, making them ideal for budget-sensitive applications like solar street lights and power banks.
0V Discharge Safety
Furthermore, **sodium-ion 18650** cells can be discharged to 0V for safe transport and storage. This eliminates the fire risks associated with shipping charged lithium-ion batteries.
Technical Specs: Sodium-Ion 18650
At Siri TechnoFabs, our cells are optimized for cycle life and rate capability using hard carbon anodes.
Explore compatible system designs on our power generation page.
- Capacity: 1300mAh - 1500mAh
- Voltage: 3.1V Nominal / 4.1V Max
- Cycle Life: 3000+ Cycles (80% DOD)
FAQs: Sodium 18650 Cells
Can I replace Li-ion 18650 with sodium-ion 18650?
Physically yes, but electrically no. The voltage curves differ (3.1V vs 3.7V). You must update the BMS and charger to handle the sodium voltage range.
How does it perform in cold weather?
Exceptionally well. Sodium-ion chemistry retains over 90% capacity at -20°C, whereas standard Li-ion cells often see significant drops. Read more at Battery University.
Is the capacity lower than lithium?
Yes, currently sodium 18650 cells have lower capacity (approx. 1.5Ah vs 2.5Ah+ for lithium). However, their low cost and long life make them ideal for stationary use.
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Contact Siri TechnoFabs today to get specifications and pricing for **sodium-ion 18650** cells for your next project.
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