Soft-pack shaped cell (21A)
Battery cell parameters
| project | Specifications | remark |
|---|---|---|
| Rated capacity | 21Ah | (25±2)℃, 0.5C constant current discharge, cut-off voltage 2.6V |
| minimum capacity | 20.8Ah | |
| Rated voltage | 3.6V | |
| Standard charging current | 0.2C | Constant voltage segment cut-off current 0.02C |
| Standard charging voltage | 4.2V | |
| Standard discharge current | 0.5C | |
| Standard discharge voltage | 2.6V | |
| Maximum discharge current | 1C | Maximum continuous discharge current ≤ 1C |
| 2C | 30s | |
| 50% SOC monthly self-discharge rate | ≤5%/month | 25±2℃ |
| Initial AC impedance | ≤1.5 mQ | 50%~60%SOC |
| DC impedance | ≤4.5 mΩ | 50%~60%SOC(1.5C@30s) |
| weight | 700±10g | |
| Operating Temperature | Charging -40~70℃ | For detailed information on the operating voltage range and temperature requirements, please refer to Section 9.5 |
| Discharge -55~70℃ | ||
| Storage temperature | 0~45℃ | |
| appearance | No cracks, scratches, deformations, stains, electrolyte leakage, etc | |
| size | (11.8±0.3)mm*(141±2)m m*(240±3)mm | See Title 11 for details |