OID 3.2V 314Ah LiFePO4 Battery Cell – High-Capacity & Long Life
Introducing the OID71174207F314AH, a premium rechargeable lithium iron phosphate (LiFePO4) prismatic
battery cell manufactured by Shenzhen Jianheng Technology Co., Ltd. Designed for demanding energy storage applications, this 314Ah
cell delivers exceptional cycle life, thermal stability, and
reliable power output. Whether you are building a solar energy
storage system, an electric vehicle (EV) battery pack, or an
industrial backup solution, this cell meets the highest standards
of safety and performance.
Key Features
- High Capacity: 314Ah nominal capacity, 984Wh energy at 45°C.
- Ultra-Long Cycle Life: 8000 cycles at 70% capacity retention (0.5C, 25°C).
- High Discharge Current: Supports 1C continuous discharge current (314A).
- Wide Temperature Range: Charge: 0°C to 60°C; Discharge: -30°C to 60°C.
- Low Internal Resistance: ≤0.25mΩ (1KHz AC) for high efficiency.
- Excellent Safety: Stable LiFePO4 chemistry with explosion-proof valve.
- Preload Recommendation: 500N – 5000N initial preload for optimal lifespan.
Detailed Specifications
| Parameter | Value |
|---|
| Nominal Voltage | 3.2V |
| Nominal Capacity | 314Ah (at 25°C, 0.5C) |
| Energy | ≥984Wh (45°C) |
| Internal Impedance (1KHz) | ≤0.25mΩ |
| Standard Charge Current | 0.5C (157A) |
| Max Continuous Charge Current | 1.0C (314A) |
| Standard Discharge Current | 0.5C (157A) |
| Max Continuous Discharge Current | 1.0C (314A) |
| Charge Cut-off Voltage | 3.65V |
| Discharge Cut-off Voltage | 2.50V (>0°C) / 2.00V (-20°C to 0°C) |
| Cycle Life | 8000 cycles @ 70% SOH (25°C, 0.5C) |
| Operating Temperature (Charge) | 0°C to 60°C |
| Operating Temperature (Discharge) | -30°C to 60°C |
| Storage Temperature (6 months) | -20°C to 35°C |
| Weight | 5.65 ± 0.15 Kg |
| Dimensions (Th/W/H) | 71.8±0.5 / 174.2±0.8 / 207.1±0.8 mm |
| Cell Casing Material | Aluminum (positive potential) |
| Terminal Material | AL1060 |
| Insulation Resistance | ≥1GΩ (500V) |
Performance & Test Parameters
- Self-discharge Rate: ≤3.5% per month (25°C, 40% SOC after 3 months).
- Capacity at Low Temperature (5°C): ≥804Wh (0.5P, 2.5V-3.65V).
- Regeneration Pulse Charging (10s): Up to 1.5C (at 20°C-40°C, 30%-100% SOC).
- Regeneration Pulse Discharging (10s): Up to 2.5C (at 20°C-45°C, 20%-90% SOC).
- Swelling Force at 80% SOH: ~30000N (under 15mm steel plate test).
- Recommended Assembly Gap: 0.5 – 1.5mm between cells to accommodate swelling.
Safety & Application Requirements
This LiFePO4 cell must be used with a qualified Battery Management
System (BMS) that provides over-voltage, under-voltage,
over-current, short-circuit, and temperature protection. The
aluminum shell is positively charged; avoid any short circuit.
Storage below 5% SOC for more than 7 days is not permitted. For
storage longer than 30 days, maintain SOC between 25%-40% and
perform a full charge/discharge cycle every 3 months. Always follow
the specified preload (300±50Kgf during measurement) and ensure
proper heat dissipation, waterproofing, and dustproofing in final
battery packs.
For custom battery pack designs or technical support, please
contact Shenzhen Jianheng Technology Co., Ltd.
