LFP Battery Cells
Home Products LiFePO4 Battery LFP Battery Cells 3.2V150AH LiFePO4 lithium battery cell
Scope
This 3.2V150AH battery cell specification is applied to describe the related Battery product in this Specification and the Battery/cell supplied by Shenzhen Cleva Power Co.,Ltd.
Model：GSP42173205F150Ah
INtroduction:
Cell Specification
No. | Items | Specifications | Remark |
| 1 | Nominal Capacity | 150Ah | 1.0C Standard discharge |
| 2 | Delivery Capacity | ≥150Ah | |
| 3 | Nominal Voltage | 3.2V | Mean Operation Voltage |
| 4 | Delivery voltage | 3.03~3.10V | Within 10 days from Factory |
| 5 | Charge Voltage | 3.65V±0.03V | By standard charge method |
| 6 | Standard charging method | 0.5C constant current,3.65V constant voltage charge to3.65V,continue charging till current decline to ≤0.05C | |
| 7 | Charge current | 0.5C | Standard charge, charge time:2.5h(Ref) |
| 0.5C | Rapid Charge, charge time:2.5h(Ref) | ||
| 8 | Standard discharging method | 0.5C constant current discharge to 2.5V, | |
| 9 | Cell Internal Impedance | ≤0.7mΩ | Internal resistance measured at AC 1KHZ after 50% charge |
Cell Specification(continuous)
No. | Items | Specifications | Remark | |
| 10 | Single Cell Charge Current（25℃） | Maximum continuous charge current | 1.0C | |
| 11 | Single Cell Discharge Current（25℃） | Maximum continuous discharge current | 1.0C | |
| Maximum pulse discharge current | 20s，2.0C | |||
| 12 | Operation Temperature and relative humidity Range | Charge | 0~45℃60±25%R.H. | Charge at a very low temperature such as blew 0℃,will be get a lower capacity and reduce cycle life of the battery |
| Discharge | -20~55℃ 60±25%R.H. | |||
| 13 | Storage temperature for a long time | -20~60℃ 60±25%R.H. | Do not storage exceed half year. Must charge once when storage for half year. Must charge the battery which with protect circuit when storage for three mouths. | |
4 Battery/Cell performance test Criteria
4.1 Appearance inspection by visual
There shall be no such defect as flaw, crack, rust, leakage, which may adversely affect commercial value of battery.
4.2 Environmental test condition
Unless otherwise specified, all test stated in this product specification are conduct at below test condition
Temperature: 20℃~30℃
Relative Humidity:60%±25% R.H.
Cell Electrical characteristics
| No | Items | Test Method and Condition | Criteria | |
| 1 | Rated Capacity at 0.5C(Min.) | After standard charge, the capacity shall be measured on 0.5C discharge till the voltage discharge to 2.5V, | ≥150Ah | ≥100% |
| 2 | Cycle Life | Charging and discharging battery as blew conditions 0.2C standard charge to 3.65V end-off0.2C standard discharge to 2.5V cut-offContinuous charge and discharge for 4000 cycles, the capacity will be measure after the 4000th cycle | ≥80% of initial capacity | |
| 3 | Capacity retention | The battery to be charged in accordance with standard charge condition at 25±5℃,then storage the battery at an ambient temperature 25±5℃ for 28 days.Measure the capacity after 28 days with 1.0C at 25±5℃ as retention capacity | Retention capacity≥90% | |
Mechanical characteristics
| No | Items | Test Method and Condition | Criteria |
| 1 | Free fall test | The battery to be fully charged in accordance with standard charge condition, then drop the battery which the positive and negative extremes face down from a height of 1,5m onto a concrete floor，observing for 1h。 | No explosion, No leakage, No fire |
| 2 | Vibration test | After standard charging, fixed the cell to vibration table and subjected to vibration cycling that the frequency is to be varied at the rate of 1Hz per minute between 10Hz and 55Hz, the excursion of the vibration is 1.6mm. The cell shall be vibrated for 30 minutes per axis of XYZ axes. | No explosion, No leakage, No fire |
| Fully charged the battery in accordance with sta | |||
| ndard charge condition, the battery is to be cru | |||
| shed between a flat plate and a 75mm semicyli | |||
| nder,the length of the semicylinder should great | |||
| er than the size of the cell. The extrusion spee | |||
| 3 | Crush test | d is 5±1mm/s,Continuous to applied force on battery,stopped until a pressure reading of 200K N is reached on the hydraulic ram or the cell v | No explosion,No fire |
| oltage reaches at 0V or the deformation quantit | |||
| y reaches at 30%，observing 1h. | |||
Safety performance
| No | Items | Test Method and Condition | Criteria |
| 1 | Thermal exposure test | Each fully charged cell, stabilized at room temperature, is placed in a circulatingair-convection oven. The oven temperature is raised at a rate of 5 °C/min ± 2 °C/min to a temperature of 130 °C ± 2 °C. The cell remains at this temperature for 30 min before the test is discontinued，observing for 1h。 | No explosion, No leakage, No fire |
| 2 | Low pressure | Each fully charged cell is placed in a vacuum chamber, in an ambient temperature of 25±5℃. Once the chamber has been sealed, its internal pressure is gradually reduced to a pressure equal to or less than 11,6 k Pa (this simulates an altitude of 15240 m) held at that value for 6 h. | No explosion, No leakage, No fire |
| 3. | Short test | The fully charged battery is to be short-circuited by connecting the positive and negative terminals of the battery with resistance load not exceed 5m Ω for 10min.Tests are to be conducted at room temperature 25±5℃,observing for 1h. | No explosion, No fire |
| 4 | Forced discharge test | A fully charged cell discharged at 1C for 90 min,observing 60min. | No explosion, No leakage, No fire |
| 5 | Over charge test | After standard charge, continue to charge with a constant 1C current until the voltage reaches 1.5 times the standard cut-off voltage or charging time reaches 1h. Observing for 1H。 | No explosion, No fire |
| 6 | Soak Test | Put the fully charged battery into 3.5% NaCl solution, be soaked for 2 hours. | No explosion, No fire |
.Cell initial Dimensions
| NO | Items | Units: mm | Remark |
| 1 | C/Thickness | 44.0＋1.5-0.5 | |
| 2 | B/Width | 173.0±1.0 | |
| 3 | A/Length | 205.0±1.0 | |
| 4 | D/pole center distance | 75.0±0.5 | |
| 5 | weight | ≤3.28Kg | |
| E/ pole center height | 20.5±1.0mm | M8 |
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