Active Member
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[China]
Address: Topband Industry Park,Tangtou Town,Bao'an District,Sheznzhen,China
Contact name:Jerry Yang
Shenzhen Topband Battery Co., Ltd |
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3.2V100Ah Rechargeable Lifepo4 Battery Cell Long warranty Low self - discharge rate
1. About us
Topband Battery is a professional manufacturer focusing on developing, manufacturing, and providing high-quality Nano-LiFePO4 batteries. We are a wholly-owned subsidiary of Shenzhen Topband Co., Ltd, (stock code as 002139).
2. Dimension
3. Specification
| No. | item | standard | remark | ||
| 3.1 | Nominal capacity | 100Ah |
RT,1C | ||
| 3.2 | Min capacity | 99.5Ah | |||
| 3.3 | Internal impedance | 0.3±0.1mΩ | RT,1000Hz | ||
| 3.4 | Nominal voltage | 3.2V | |||
| 3.5 | Weight | 2600±20g | |||
| 3.6 | Voltage range | 3.65～2.00V | |||
| 3.7 | Recommended charge current | ≤1.0C | |||
| 3.8 | Recommended discharge current | ≤1.0C | |||
| 3.9 | Max continuous charge current | 2C | RT | ||
| 3.10 | Max continuous discharge current | 3C | RT | ||
| 3.11 | Max pulse discharge current | 5C | RT,10s,SOC≥20% | ||
| 3.12 | Cycle life | 2000 cycles capacity retention≥80% | RT,1C,100%DOD | ||
| 3.13 | Charging temperature | 0～45℃ | |||
| 3.14 | Discharging temperature | -20～55℃ | |||
| 3.15 | Storage temperature | -10～30℃ | |||
| 3.16 | Terminal torsion | ≤8.0N·m | |||
| 3.17 | Appearance | No break,scratch,distortion,contamination,leakage. | |||
4. Test conditions
4.1 Standard Test Conditions
All tests are conducted at temperature 25±2℃, humidity was 15%~90%RH, atmospheric pressure at 80~106kPa.Unless there are other special instructions, all performance was tested with unused cells within 1 month after production date.
4.2 Standard Charge Method
The "Standard Charge" means in an ambient temperature of 25±2℃, the cell was discharged with 1C constant current to cut-off voltage 2.0V, standing 1hour. Then charged it with 1C constant current to 3.65V, then change into constant charge mode, until the charging current down to 0.05C, then stop charging and standing 1h.
5. Electrical Characteristic
| No. |
Item |
Test method |
Criteria |
| 5.1 |
High Temperature Discharge Performance | The cell was charged in accordance with 4.2,and stored in an ambient temperature of 55±2℃ for 5h,then discharged to 2.0V with 1C constant current.After that,then place the cell in the ambient temperature of 25±2℃ for 4h then check its appearance. | 1,Retention capacity at 55℃ ≥95% 2,No deformation, No crack. |
| 5.2 |
Low Temperature Discharge Performance | The cell was charged in accordance with 4.2,and stored in an ambient temperature of -20±2℃ for 24h,then discharged to 1.8V with 1C constant current.After that, place it in the ambient temperature of 25±2℃ for 4h, then check its appearance. | 1,Retention capacity at -20℃ ≥70% 2,No deformation, No crack. |
| 5.3 |
Rate Charge Performance in Normal Temperature | Under the ambient temperature of 25±2℃
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Capacity retention≥80% |
| 5.4 | Rate Discharge Performance in Normal Temperature |
The cell was charged in accordance with 4.2,then discharge to 2.0V with 3C current in an ambient temperature of 25±2℃. |
Capacity retention≥90% |
| 5.5 |
Charge Retention |
The cell was charged in accordance with 4.2,and stored in an ambient temperature of 25±2℃ for 28 days,and then discharged to 2.0V with 1C constant current. | Capacity retention ≥85% Capacity recovery ≥90% |
| 5.6 |
Cycle Life (25±2℃) | The cell was charged to 3.65V with 1C CC/CV cut off 0.05C,stayed for 30min;Subsequently,the cell was discharged to 2.0V with constant current 1C,and stayed for 30min;Prior to next charge-discharge cycle.Record all the cycles until the retention capacity＜80%. |
≥2000cycles |
6. The performance test curve
The capacity retention at different discharge rate
The capacity retention at different charge rate
The discharge capacity retention at different temperature
The capacity retention at different cycles
7. Why choose us
Design, research, customized energy solutions, trial production and mass production
Quality certification
One stop before sales service & after sales service & technical support;
Quick delivery: 2~3weeks for samples, 4~6weeks for mass production;
Warranty: 2-year full service since shipping.
