Active Member
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[China]
Address: 8F, Building 3, Tianxing International Center, No. 508 Fengtan Road, Hangzhou, China. 310011
Contact name:Yang
Zhejiang Hengrui Technology Co., Ltd. |
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3.2V 100AH LiFePO4 Cell with Long Life and High Capacity,L174.2 X H190 X W31.7
VHR 3914895LFP series lithium iron phosphate cores of Hengrui Technology adopt square shell
design, combined with the company's advanced automated production equipment and strict
production process, have the characteristics of high energy density, high security, long cycle life,
and are suitable for large energy storage systems, communication base stations, UPS, pure electric
vehicles and other application scenarios. It solves many problems existing in lithium iron phosphate
batteries, such as short battery life, poor consistency, poor safety, and inability to charge and
discharge at high current
- Good high temperature performance, The cells are fully charged with standard charging condition and
put into incubator with nature air or cycled air connected, heat battery by velocity of 5°C ±2°C/min to
130°C±2°C and maintain for 30mins. Observe the phenomenon for 1h. No fire; no explosion
- Long cycle life, 4600 cycles at 100%DOD @25℃
- High current charging and discharging, support 1C or 2C continuous charging and discharging, reduce
charging and discharging time
- High energy density, the product adopts the unique patented technology. The energy density of the
product reaches 160Wh/Kg, which reduces the volume of the product under the same capacity
- Wide operating temperature range
| Item | Specification | Condition |
| Nominal Capacity | 100Ah |
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| Minimal Capacity | 100Ah | |
| Nominal Voltage | 3.2V | - |
| Operating Voltage Range | 2.5V-3.65V | Temperature > -20℃ |
| 2.0V-3.65V | Temperature ≤ -20℃ | |
| Internal Impedance (1kHz) | ≤0.55 (mΩ) | Fresh Cell |
| Average Internal Impedance (1kHz) | 0.4 (mΩ) | Fresh Cell |
| Ex-work Capacity | 50% SOC | N.A. |
| Operating Temperature (Charge) | 0℃-60℃ | Refer to 2.2 |
| Operating Temperature (Discharge) | -20℃-60℃ | Refer to 2.3 |
| Weight | Approximately 2.30 Kgs ± 0.02 Kgs | N.A. |
| Dimension | Refer to 3.2 | N.A. |
| No. | Item | Specification | Condition |
| 1 | Capacity at 25℃ | ≥ 100% | Standard charge/discharge at 25℃ (Cell Temperature at front/back sides) |
| 2 | Capacity at 0℃ | ≥ 90% | Standard charge at 25℃, Standard discharge at 0℃(Cell Temperature at front/back sides) |
| 3 | Capacity at -10℃ | ≥ 85% | Standard charge at 25℃, Standard discharge at -10℃(Cell Temperature at front/back sides) |
| 4 | Capacity at -20℃ | ≥ 80% | Standard charge at 25℃, Standard discharge at -20℃(Cell Temperature at front/back sides) |
Cell Temperature shall be measured on the middle of front/back sides of the battery cell, and the battery cell shall be cooled down by natural
ventilation at a temperature stable location. Calibrated and time data recordable temperature sensor shall be used for cell temperature
measurement. At the given conditions, temperature rise means temperature after discharge minus temperature before discharge
| No. | Item | Specification | Condition |
| 1 | Temperature rise at continuous discharge mode | ≤ 10℃ | Discharge at 0.5C for 2 hours |
| 2 | Temperature rise at pulse discharge mode | ≤ 5℃ | Discharge at 2C for 10 seconds at any State of Charge (SOC) |
| Item | Test method and condition | Criteria |
| Standard charge condition | Charging the cell with constant current at 1/3C and then with constant voltage at 3.65V till charge current declines to ≤ 0.05C. | Charge Voltage: 3.65V Charge Current: 33A |
| Initial impedance | Internal resistance measured at AC 1KHz within 1 hour after standard charge | ≤0.55mΩ |
| Cell voltage | Battery state upon shipment | ≥3.2V |
| Rated capacity |
| 100Ah |
| High rate discharge performance |
| ≥97% Rated Capacity |
| Cycle life |
| ≥4600cycles |
| Self-discharge | Voltage difference after corresponding days rest at 25℃±2℃ | ≥96% Rated Capacity |
| High temperature charge retention and recovery |
| Capacity retention ≥ 95% Rated Capacity Capacity recovery ≥ 90% Rated Capacity |
| Low temperature performance |
| ≥70% Rated Capacity |
| High temperature performance |
| ≥95% Rated Capacity |
| storage | The cell shall be charged in accordance with the standard charging method. Discharge at the constant current of 0.5C for 2h. The cell shall be stored in the temperature of 25℃±2℃ for 90 days. The cell shall be charged in accordance with the standard charge. Discharge at the constant current of 0.5C down to 2.5V. | ≥95% Rated Capacity |
| charge retention and recovery | The cell shall be charged in accordance with the standard charging method. The cell shall be stored in the temperature of 25℃±2℃ for 30days. Discharge at the constant current of 1/3C down to 2.5V. Charge again in accordance with the standard charging method. Discharge at the constant current of 1/3C down to 2.5V. | Capacity retention≥ 95% Rated Capacity Capacity recovery ≥ 97% Rated Capacity |
Test Method:
- Discharge: DC 1C to 2.5V; Rest: 30min
- Charge: CC-CV 0.5C to 3.65V @ 0.05C; Rest: 30min
- Discharge: 0.5C 2.5V Cut-off；Rest 30min；
- Repeat 2～3 three times, the energy efficiency η=Discharge Energy(Wh)/ Charge Energy(Wh) is the average of
three values;
Test Method:
- Discharge:1C 2.5V Cut-off；Rest:60min
- Rest 12h at -20℃
- Charge: 0.5C 3.65V CC-CV 0.05C Cut-off；
- Discharge: 1C 2.0V Cut-off at -20℃(Discharge Capacity), Ret.=Discharge Capacity/C0×100%
