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Hithium 280Ah cell-280Ah 3.2v 896Wh battery
3.2v 280ah battery lifepo4 Lithium battery cells
More than 10000 cycles
Price: usd43.6
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Details Description
| project | parameter | test method |
| Discharge capacity at -20 ℃ | ≥70% Nominal Capacity | After standard charging of the battery cell, let it stand for 24 hours at -20 ± 2 ℃, discharge the battery cell at 0.5P current to 2.0V, and record the discharge capacity (Ah) |
| 55 ℃ discharge capacity | ≥95% nominal capacity | After standard charging of the battery cell, let it stand at 55 ± 2 ℃ for 5 hours, discharge the battery cell at 0.5P current to 2.5V, and record the discharge capacity (Ah) |
| Continuous charge/discharge temperature rise | ≤10℃ | (25 ± 2) ℃, standard charge and discharge, temperature sensing wire attached to the surface of the battery cell (without fixture testing), tested in high and low temperature chambers, the battery cell starts charging (discharging) until the charging (discharging) is completed, and the temperature rise is recorded as continuous charging (discharging) temperature rise |
| Pulse discharge temperature rise | ≤5℃ | (25 ± 2) ℃, single cell 50-80% SOC state, 500A pulse discharge for 10 seconds, tested in high and low temperature chambers, temperature sensing wire attached to the large surface of the cell (without fixture), and the temperature rise from the beginning of discharge to the completion of discharge is recorded as pulse temperature rise |
| Room temperature charge retention and recovery capability |
remaining capacity≥95% nominal capacity Recovery capacity≥97% nominal capacity |
After standard charging, the battery cell is left open circuit at room temperature for 28 days: discharged at 0.5P to 2.5V, and the discharged capacity is recorded as the remaining capacity; after standard charging again, discharged at 0.5P to 2.5V, and the discharged capacity is recorded as the recovery capacity |
| High temperature charge retention and recovery capability |
remaining capacity≥95% nominal capacity Recovery capacity≥97% nominal capacity |
After standard charging of the battery cell, it is left open circuit for 7 days under high temperature conditions of 55 ± 2 ℃; After being left at room temperature for 5 hours, discharge at 0.5P to 2.5V The released capacity is recorded as the remaining capacity: after standard charging again, discharge at 0.5P to 2.5V, and the released capacity is recorded as the recovery capacity |
| safety performance | The monomer meets the requirements of single needle puncture in GB/T 36276-2018 and GB/T 31485-2015 | Refer to requirements 6.2.8 of GB/T 36276-2018 and GB/T31485-2015 |
Basic product parameters
| project | parameter | condition |
| Cell type | Lithium iron phosphate battery cell | N.A. |
| Cell model | LFP71173207/280Ah | N.A. |
| External dimensions | Refer to the finished battery cell drawing | Please refer to Chapter 10 for detailed cell drawings |
| Cell quality | 5.43 ± 0.20kg | After wrapping the blue film |
| Factory internal resistance (1 KHz) | 0.18 ± 0.05mΩ | 27% SOC, based on the online testing data of the production line |
| Rated (nominal) capacity | 280Ah | (25 ± 2)℃, standard charge and discharge |
| nominal voltage | 3.2V | (25 ± 2)℃, standard charge and discharge |
| rated energy | 896Wh | (25 ± 2)℃, standard charge and discharge |
| working voltage |
2.5-3. 65V 2.0-3.65V |
Temperature T＞0℃ Temperature T≤0℃ |
| Shipping voltage range | 3.28~3.30V | (25 ± 2)℃, 27% SOC open circuit voltage of battery cell |
| energy density | ≥160Wh/kg | (25 ± 2)℃, standard charge and discharge |
| Recommended SOC usage window | 10%~90% | N.A. |
| Monthly self discharge | ≤3.0% | Three months after shipment, the battery cells are charged to 27% SOC and stored at 25 ± ℃ according to standard charging |
| Maximum continuous charging power | 1P | 25 ± 2℃ |
| Maximum continuous discharge power | 1P | 25 ± 2℃ |
| Discharge temperature range | -30~60℃ | N.A. |
| Charging temperature range | 0~60 | N.A. |
