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Shenzhen Topband Battery Co., Ltd

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High Energy Lithium Iron Phosphate Battery Rechargeable Lifepo4 Single Cells 3.2V 120Ah

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Brand Name :	Topband
Model Number :	TB-048174170-Fe-100Ah
Certification :	CE,UL,UN38.3,MSDS
Price :	Negotiable
Payment Terms :	T/T, Western Union, L/C
Supply Ability :	3GWH Annually
Delivery Time :	2~4weeks for samples; 4~6weeks for mass production

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Product Details
Company Profile

High Energy Lithium Iron Phosphate Battery Rechargeable Lifepo4 Single Cells 3.2V 120Ah

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		120Ah		RT,1C
3.2	Energy density		≥140wh/kg
3.3	Internal impedance		0.3±0.1mΩ		RT,1000Hz
3.4	Nominal voltage		3.2V
3.5	Weight		≤2.86kg
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 discharge current		2C
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, standing1hour. 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 TemperatureDischarge 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,Retentioncapacity at 55℃ ≥95% 2,Nodeformation, No crack.
5.2	Low TemperatureDischarge 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,Nodeformation, No crack.
5.3	Rate Charge Performance in Normal Temperature	Under the ambient temperature of 25±2℃ discharge to 2.0V with 1C constant current,stay for 1h. Charged to 3.65V with 2C constant current,stay for 1h. discharge to 2.0V with 1C constant current.	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

100Ah 3.2V Lifepo4 Lithium Rechargeable Battery Cell Long Warranty Low Self Discharge Rate

The capacity retention at different charge rate

100Ah 3.2V Lifepo4 Lithium Rechargeable Battery Cell Long Warranty Low Self Discharge Rate

The discharge capacity retention at different temperature

100Ah 3.2V Lifepo4 Lithium Rechargeable Battery Cell Long Warranty Low Self Discharge Rate

The capacity retention at different cycles

100Ah 3.2V Lifepo4 Lithium Rechargeable Battery Cell Long Warranty Low Self Discharge Rate

7. Environmental Characteristics

No.	Item	Test Method	Criteria
7.1	Temperature cycle	The cell was charged in accordance with 4.2,and then repeat the following procedures for 5 cycles,then check the cell's appearance.	No leakage,no fire,no explosion, no vent
7.2	Low-pressur e Test	The cell was charged in accordance with 4.2,then stored for 6h at a vacuum of -90KPa,after that put the cell in room temperature for 6h,then check the cell's appearance.	No leakage,no fire,no explosion, no vent
7.3	Vibration Test	The cell was charged in accordance with 4.2,and then installed onto the vibration machine.Equipment parameters of frequency and amplitude are set as bellow (the frequency is to be varied at the rate of 1oct/min between 10 and 55 Hz,and repeat vibration for 30 min.The cell is tested in three mutually perpendicular directions,i.e.X,Y,Z): frequency:10Hz~30Hz,amplitude: 0.38mm; frequency:30Hz~55Hz amplitude: 0.19mm;	1. No scratch,no fire,no explosion, no vent; The voltage is not less than 3.2V.
7.4	Mechanical shock	The cell was tested in accordance with 4.2,and then secured to the testing machine by means of rigid mount which supports all mounting surfaces of the cell.Each cell shall be subjected to a total of three shocks of equal magnitude.The shocks are to be applied in each of three mutually perpendicular directions.The acceleration and impulse time are as follows: acceleration of impulse peak value: 100m/s²,shock frequency:40~80 times/min,impulse lasting time:16 min,shock times:1000±10 .	No scratch, no leakage, no fire, no explosion, no vent; 2. the voltage is not less than 3.2V.

8,Safety test

All below tests are carried out on the equipment with forced ventilation and explosion-proof device.Before test, all cells are charged in accordance with 4.2, and stored 24h prior to test.

No.	Item	Test Method	Criteria
8.1	Short- circuit Test	The cell was charged accordance with 4.2, after that the cell is short-circuited by connecting the positive and negative terminals with a wire for 10min, the wire has a maximum resistance load of 5mΩ,then observe for 1h.	No fire, no explosion
8.2	Overcharge	The cell was tested in accordance with 4.2, then 1C constant current charged till the voltage reaches 1.5 times of the specified end-off charge voltage, or the charge time reaches 1h, then stop charge, and observe for 1h.	No fire, no explosion
8.3	Over discharge test	The cell was tested in accordance with 4.2, then 1C discharge for 90min, then observe for 1h.	No fire, no explosion, no leakage
8.4	Crush Test	The cell was tested in accordance with 4.2, and then is placed on the crush machine, the axis is parallel to the crush equiment, and it is crushed between two flat surfaces till the crushing force is gradually approaching 200 kN, or voltage reaches 0V,or reaches 30% distortion, then observe for 1h.	No fire, no explosion
8.5	Impact Test	The cell was tested in accordance with 4.2, and then placed on the impact flat.A Φ15.8mm bar is to be placed on the center of the cell.A 9.1kg weight is dropped from a height of 610mm onto the cell, the distortion is allowed.	No fire, no explosion
8.6	Nail Test	a) The cell was tested in accordance with 4.2 b) use φ5mm～φ8mm high temperature resistance steel needle, with speed of 25±5 mm/s, to go through the cell from vertical direction of pole plate, the penetrate position should be close to the geometric center of plate surface, the steel needle remains in the cell;	No fire, no explosion
8.7	Heating Test(130℃)	The cell was tested in accordance with 4.2, and then heated in a circulating air oven.The temperature of the oven is raised at a rate of 5℃ per minute to 130±2℃ and remain for 30 min.	No fire, no explosion

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High Energy Lithium Iron Phosphate Battery Rechargeable Lifepo4 Single Cells 3.2V 120Ah