Sodium Ion Cylindrical Cells - Rechargeable Battery Cell - NaCR Layered Oxide

Advanced Sodium-Ion Cells — NaCR (NaCrO₂-type) Layered Oxide

These NaCR-series sodium-ion cells are a practical, sustainable alternative to lithium-ion. Compared to LFP, they maintain stronger low-temperature performance and rely on abundant materials. The NaCR chemistry is a NaCrO₂-type layered-oxide cathode, delivering a nominal 3.05 V with a wide operating window and excellent cold-weather discharge capability.

Cylindrical Cell Size

• 18650 — NaCR18650-1.3ER
  • Dimensions: 18.35 D × 65.2 L (mm)
  • Rated Capacity: 1300 mAh (0.2 C)
  • Nominal Voltage: 3.05 V
  • Weight: 36.5 ± 0.5 g

Key Features

• Cathode: NaCrO₂-type Chromium layered-oxide sodium-ion for a higher usable voltage window than Prussian-blue or polyanion chemistries.
• Cold-Weather Ready: Discharge down to −40 °C; at −20 °C and 1C the cell delivers ≥80% of nominal capacity (after standard charge).
• Practical Power: Up to 6C burst discharge (7.8 A at 100% SOC, 25 °C) with low AC impedance.
• Sustainable Materials: Sodium-based system reduces reliance on lithium and cobalt supply chains.

Product Specifications

• Model: NaCR18650-1.3ER
• Nominal Voltage: 3.05 V
• Charge Limit Voltage: 3.95 V (CC/CV)
• Discharge End Voltage: 1.8 V
• Rated Capacity: 1300 mAh (0.2 C)
• Standard Charge Current: 0.5 C (650 mA); CV to ≤0.05C
• Max Charge Current: 1.0 C (1300 mA)
• Standard Discharge Current: 0.5 C (650 mA)
• Max Discharge (burst): 7.8 A (≈6C at 100% SOC, 25 °C)
• Operating Temperature: Charge −20 °C to 55 °C; Discharge −40 °C to 60 °C
• Storage Temperature: 15 °C – 35 °C
• AC Impedance (1 kHz): ≤ 30 mΩ
• Cell Dimensions (shipping state): Ø18.35 ± 0.15 mm × 65.2 ± 0.2 mm
• Cell Weight: 36.5 ± 0.5 g

NFM vs. NaCR — What’s the Difference?

Cell Spot-Welding Recommendations

Sodium-ion cans prefer gentle weld parameters:

1. Start at the lowest energy setting your welder allows
2. Keep pulse time ≤ 1.5 s
3. Increase energy in small steps only if the tab does not fully adhere

Datasheet

NaCR18650-1.3ER Sodium-Ion Cell — PDF