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The lithium iron phosphate battery is a lithium ion battery using lithium iron phosphate (LiFePO4) as the positive electrode material and carbon as the negative electrode material.The cell voltage is 3.2V,and the charge cut-off voltage is 3.6V~3.65V.
LFP battery characteristics
| |
Characteristics | LFP Battery |
Nomal Voltage | 3.2V |
Working Voltage | 3.0V-3.3V |
highest energy density WH/KG | 175 |
Charge rate | 2 |
Discharge rate | 10 |
Cycle life time(charge 1C,discharge 2C) | >95%,500 times |
High current discharge cycle life(charge 1C,discharge 5C)
| >80%,300times |
Safety | No burn,No explode |
0 voltage storage for 30 days
| No damage |
The performance of LFP power battery and other battery
| |||||
General lithium-ion battery
| Lithium-ion power battery
| LFP power battery | NiMH batteries
| unit or test condition
| |
Normal Voltage | 3.6-3.7 | 3.6-3.7 | 3.2 | 1.2 | V |
Working voltage | 3.0~4.2 | 3.0~4.2 | 3.0~3.3 | 1.0~1.4 | V |
unit mass capacity
| 180 | 130 | 130 | 80 | mAb/g |
energy per unit mass
| 90~110 | 60~75 | 60~75 | 50~60 | Wb/kg |
energy per unit volume
| 280~300 | 220~240 | 220~240 | 200~220 | Wb/L |
best charging rate
| 0.2~0.5 | 0.5~1.0 | 0.5~1.5 | 0.2~0.5 | C |
Working discharge rate | 1 | 2 | 2 | 0.5 | Cm A |
Hight discharge rate | 1.5 | 5 | 10 | 2 | Cm A |
Instantaneous high current pulse
| 2 | 10 | 20 | 3 | Cm A |
Cycle life time | 60% 100times | 85% 300times | >95% 500times | <50% 50times | 1CmA charge 2CmA discharge |
Cycle life at high current discharge
| - | 60% 300times | >80% 300times | <50% 10 times | 1CmA charge 5CmA discharge |
Safety | May burn, explode
| May burn, explode
| No burn,no explode | May burn, | - |
0-voltage storage for 30 days
| leak, damage
| leak, damage
| No damage | leak, damage
| - |