| No | Item | Criteria | Testing method |
| 5.1 | 1C discharge performance | Retention capacity≥95% | Charge the cell at method 4.2 at Normal temperature; discharge it at 1C to cut-off voltage(Initial temperature )；And then charge it at method 4.2 , discharge it at 1C to the cut-off voltage again. |
| 5.2 | 30C continuous discharge capacity at normal temperature | Retention capacity ≥85%,Surface temperature ≤70℃ | Rested the cell at least 1h after it is full charged at 25℃±5℃,then discharge it at 30C to the cut-off voltage 2.0V. |
| 5.3 | Large current performance at normal temperature | Load voltage within 10S≥2.05V | Rest the cell at least 1h after it is full charged at 25℃±5℃,then test it according to the requirements:Discharge current =60C 10S,Load voltage within 10S ≥2.05V |
| 5.4 | 15C Continuous discharge current performance at low temperature (0℃) | Voltage at 5S≥2.5v Voltage at 90S≥1.8V | Freeze the battery module for 10h at 0℃ until it is full charged, then discharged it at required current =15C；until the voltage 1.8V, voltage at 5S ≥2.5V, voltage at 90S≥1.8V |
| 5.5 | 15C Continuous discharge current performance at low temperature (-18℃) | Voltage at 10S≥1.8V | Freeze the battery module for 20h at -18℃ until it is full charged, then discharged it at required current =15C；until the voltage 1.8V, voltage at 10S ≥1.8V |
| 5.6 | Discharge capacity at high temperature | Retention capacity ≥95% | Charge the cell at method 4.2；Discharge at 1C to the cut-off voltage；Charge the cell at method 4.2；store the cell at 55℃±2℃ for 5h,then discharge at 1C to the cut-off voltage at 55℃±2℃. |
| 5.7 | Cycle life at normal temperature | ≥2000 times | Charge the cell at 0.5C constant current and constant voltage at 25℃±5℃ to voltage 3.65V,current ≤0.03C, store it for 30min,then discharge it at constant current at 1.0C to the cut-off voltage 2.0V. Do the test until the capacity≤80% for 3 times. Cycle life≥2000times. |
| 5.8 | SOC at normal temperature | Residual capacity ≥95% of initial capacity；remain capacity≥ 98% of initial capacity | Charge the cell at method 4.2；discharge it at 1C to the cut-off voltage(Initial capacity)；Charge the cell at method 4.2；store it at 25℃±2℃ for 28 days；then discharge it at 1C to the cut-off voltage(Residual capacity); Charge the cell at method 4.2, discharge it at 1C to the cut-off voltage (Remain voltage). |
| 5.9 | SOC at high temperature | Residual capacity ≥90% of initial capacity；remain capacity≥ 95% of initial capacity | Charge the cell at method 4.2；discharge it at 1C to the cut-off voltage(Initial capacity)；Charge the cell at method 4.2；store it at 55℃±2℃ for 7 days；then discharge it at 1C to the cut-off voltage(Residual capacity); Charge the cell at method 4.2, discharge it at 1C to the cut-off voltage (Remain voltage). |
