OID NaCR32700-35H 3.5Ah 30C Max Discharge -40℃ Low Temperature Sodium Ion Battery
The OID NaCR32700-35H is a high-performance rechargeable sodium ion battery developed by Shenzhen Jianheng Technology Co Ltd. With a nominal capacity of 3.5Ah and a voltage of 3.0V, this 32700 cell delivers exceptional power density, safety, and reliability for demanding applications. It features an ultra-wide operating temperature range from -40°C to 80°C, high-rate discharge capability up to 30C, and excellent cycle life, making it an ideal alternative to traditional lithium-ion solutions.
| Parameter | Specification |
|---|---|
| Typical Capacity | 3.5Ah (0.2C discharge) |
| Minimum Capacity | 3.45Ah (0.2C discharge) |
| Nominal Voltage | 3.0V |
| Operating Voltage | 1.5V ~ 3.9V |
| AC Internal Impedance (1KHz) | ≤5mΩ |
| Cell Weight | 120±3g |
| Cell Dimension | Φ32.4±0.1mm (Diameter) x 71±0.5mm (Height) |
| Parameter | Value / Condition |
|---|---|
| Standard Charge Current | 0.5C |
| Standard Charge Voltage | 3.9±0.05V |
| Max Continuous Charge Current | 3C (15℃~55℃) |
| Standard Discharge Current | 0.2C |
| Max Continuous Discharge Current | 10C |
| Max Discharge Current (Pulse) | 30C (≥10 seconds) |
| Max Pulse Cycle Discharge Current | 25C (35 pulses) |
| Discharge Cut-off Voltage | 1.5V |
| Rate / Temperature | Capacity Retention (vs 0.2C at 25℃) |
|---|---|
| 0.5C Discharge | ≥97% |
| 1.0C Discharge | ≥95% |
| 5.0C Discharge | ≥90% |
| 10C Discharge | ≥85% |
| 80℃ Discharge (1C) | ≥95% of initial capacity |
| 0℃ Discharge (1C) | ≥90% of initial capacity |
| -20℃ Discharge (1C) | ≥85% of initial capacity |
| -40℃ Discharge (1C) | ≥70% of initial capacity |
| Test Item | Specification |
|---|---|
| Standard Cycle Life (0.5C charge / 1C discharge) | ≥70% after 1000 cycles |
| Pulse Cycle Life (1C charge / 25C pulse discharge) | ≥90% after 10,000 cycles; ≥80% after 30,000 cycles |
| Storage (28 days at 25℃) | Capacity Retention ≥90%, Recovery ≥95% |
| Storage (30 days at 60℃) | Capacity Retention ≥80%, Recovery ≥90% |
- Sodium-Ion Technology: Safe, abundant, and cost-effective alternative to lithium-ion.
- Extreme Temperature Performance: Reliable charging from -10°C to 55°C and discharging from -40°C to 80°C.
- High Power Output: Capable of 30C pulse discharge (≥10s) and 3C fast charging.
- Exceptional Pulse Cycle Life: Up to 30,000 cycles for high-power pulse applications.
- Robust Safety: Passes overcharge, overdischarge, short circuit, crush, and thermal abuse tests without fire or explosion.
This battery must be used with a proper Battery Management System (BMS) to monitor voltage, current, and temperature. Strictly adhere to the operating limits in this specification to ensure safety and longevity. Avoid mechanical shock, short circuits, and exposure to fire or high temperatures. Storage should be at -20°C to 45°C with a recommended long-term storage voltage of 2.5V-3.0V. For extended storage (>3 months), store at 0°C-25°C and recharge every 3 months to 3.0V.
Manufacturer: Shenzhen Jianheng Technology Co Ltd
Contact: +86 137 2555 9416 | alan@liion-batt.com
Address: 20F 2# Bld. Zhenhuan Rd. Pingshan, Shenzhen, China
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