Sodium Ion Cylindrical Cells - Rechargeable Battery Cell

Advanced Sodium Ion Battery Cells, finally a cheaper alternative to lithium-ion cells.

Sodium-ion battery cells have gained attention as a promising alternative to traditional LFP cells. One significant advantage of sodium-ion cells is its better performance at low temperature compared to LFP. Sodium is more abundant and sustainably resourced compared to lithium, so it has the potential to be a cheaper replacement for lithium-ion

Sodium-ion batteries are also known for their stable electrochemical performance, which translates to a longer cycle life. This longevity can reduce the cost of ownership over time. Sodium-ion cells offer a lower energy density compared to LFP cells, but a higher energy density compared to lead acid.

These cells use a layered oxide sodium-ion chemistry (like NaNi₁/₃Fe₁/₃Mn₁/₃O₂), which provides a wide operating voltage range (1.5–3.95 V) and delivers higher energy density compared to other sodium chemistries like polyanions or Prussian blue analogs. This makes them particularly attractive for performance-driven applications where cost and abundant materials matter.

Cylindrical Cell Sizes:

• 18650
  
• Dimensions: 18.4 D, 65.3 L (mm)
  
• Amp-hours: 1,500mAh
  
• Weight: 37 ±0.5g
  
• 26700
  
• Dimensions: 26 D, 70 L (mm)
  
• Amp-hours: 3,500mAh
  
• Weight: 82 ±0.5g

Key Features:

• Sodium-ion Chemistry: Layered Oxide Sodium-ion offers a higher voltage range and energy density compared to polyanion or Prussian blue analog chemistries.
• Reliable Power Source: This 3.1V Sodium Ion Battery Cell is designed to provide a consistent and reliable power source for a wide range of applications.
  
• Versatile Compatibility: Whether you're an electric skateboard enthusiast, a DIY enthusiast, or simply in need of a dependable power source for your flashlight, this battery pack is your go-to choice.
  
• Sustainable Sodium Technology: Our sodium ion cells are not only an eco-friendly alternative but also more abundant than traditional lithium-ion batteries, ensuring a sustainable energy solution.
• Long-Lasting Performance: With an internal impedance of ≤20mΩ, this battery pack provides stable electrochemical performance, an extended cycle life, and the ability to be charged and discharged repeatedly, saving you money on replacements.

Product Specifications:

• Nominal Voltage: 3.10V
• Operating Voltage: 1.5~4.1V
  
• Internal Impedance: ≤25mΩ
• Charging Temperature: -20C to 45C (-20~0C <0.2C)
• Discharging Temperature: -40C to 60C (-40~0C or 45C~60C<0.2C)
• Standard Charge Current: 0.5 C
  
• Standard Discharge Current: 0.5 C
• Cycle life: 3000 cycles to 80% SOH (25 deg C and 0.5C CCCV)

Cell Spot Welding Recommendations:

Note: Sodium-ion cells are different from lithium-ion cells and you cannot use too high of a power when spot welding.

1. Start with the lowest power setting possible
2. Weld for 1.5 seconds max
3. If tabs are not welded, then slightly increase power setting and repeat until tabs are secure

Datasheet: 18650 Sodium-ion Cell