Sodium Ion Battery Cells for Sale 3.1V 210Ah, SIB210| Wistek

Revolutionize your energy storage with the next generation of Sodium-ion (Na-ion) technology. Engineered for extreme environments, this 210Ah cell delivers reliable power at -40°C and offers the unique ability to discharge to 0V without damage—solving the "dead battery" anxiety of traditional lithium systems.

Key Features

• Exceptional Low-Temperature Resilience: Maintains over 65% capacity even at -40°C and 90% at -20°C. Perfect for off-grid winter cabins and high-altitude DIY projects where lithium batteries fail.
• 0V Discharge Safety: Unlike LiFePO4, these sodium cells can be discharged to 0V without affecting performance or safety, making them far more robust against accidental over-discharge during long-term storage.
• High Cycle Life & Stability: Rated for ≥4,000 cycles at 70% capacity retention, providing a long-term, cost-effective alternative for daily energy cycling.
• Rapid Charge/Discharge Performance: Supports 0.5C standard charging and up to 3.0C instantaneous discharge (≤30s), handling high-surge appliances with ease.
• Enhanced Safety Profile: Passed rigorous testing including heating to 130°C, crushing, overcharging, and short-circuiting without fire or explosion. Sodium chemistry is inherently more stable than NCM/LFP.
• Eco-Friendly Hard Carbon Anode: Utilizing biomass precursor hard carbon systems, these cells are more sustainable and less dependent on scarce mineral resources.

Technical Specifications

Application Scenarios

• Extreme Cold Climate Storage: The ultimate choice for solar setups in Nordic regions, Canada, or mountainous areas where winter temperatures drop below -20°C.
• Backup Power & UPS: High stability and 0V recovery make it ideal for emergency backup systems that may sit idle for long periods.
• DIY Electric Mobility: Excellent rate performance (3C burst) and high energy density (140Wh/kg) provide a lightweight, powerful solution for custom EV or cart builds.