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1500mAh LiFePO4 Battery

1500mAh LiFePO4 Battery

1500mAh LiFePO4 Battery with 5 years warranty Specification of 1500mAh LiFePO4 Battery Working principle editing The full name of the iron-lithium battery is lithium iron phosphate lithium-ion battery. Because its performance is particularly suitable for power applications, it is also called...
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1500mAh LiFePO4 Battery with 5 years warranty
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  Specification of 1500mAh LiFePO4 Battery

No.

Item

Standard

Note

1

Standard Capacity

1500mAh

0.5C,( current value of 1500mA at 1C)

2

Capacity Range

1450~1550mAh

0.5C

3

Standard Voltage

3.2 V


4

Alternating Internal Resistance

≤40mΩ


5

Charge Conditions

Cut-off Voltage

3.65±0.05V

constant-current charge to 3.65V at 0.5C,constant voltage charge to stop until 0.01C mA

Cut-off Current

0.01C

6

Max. Charging Current

1.5A


7

Discharge Cut-off Voltage

2.5V

 

8

Standard Discharge Current

0.75A


9

Fast Discharge Current

1.5A


10

Max. Continuous Discharge Current

4.5A


11

Pulse Discharge Current

10A,5s


12

Cycle Characteristic

2000times(100%DOD)

the residual capacity is no less than 80% of rated capacity at 1C rate.

4000 times(80%DOD)

7000 times(50%DOD)

13

Working Temperature

Charge:0&°C~55&°C        Discharge:-20&°C~60&°C


14

Storage Temperature

-20&°C ~ 45&°C

Short-term storage (< 3 months)

15

Battery Weight

41 g (Approx.)



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Working principle editing
The full name of the iron-lithium battery is lithium iron phosphate lithium-ion battery. Because its performance is particularly suitable for power applications, it is also called "lithium iron power battery". (hereinafter referred to as "Lithium Iron Battery") 


Working principle of iron-lithium battery (LiFePO4)
The internal structure of the LiFePO4 battery is shown in Figure 1. On the left is the olivine-structured LiFePO4 as the positive electrode of the battery. The aluminum foil is connected to the positive electrode of the battery. The middle is the polymer separator. It separates the positive electrode from the negative electrode, but the lithium ion Li+ can pass and the electron e- cannot pass. The right side is composed of A battery negative electrode composed of carbon (graphite) is connected to the negative electrode of the battery by a copper foil. Between the upper and lower ends of the battery is the electrolyte of the battery, and the battery is hermetically sealed by a metal case.
When the LiFePO4 battery is charged, the lithium ion Li+ in the positive electrode migrates toward the negative electrode through the polymer separator; during the discharge, the lithium ion Li+ in the negative electrode migrates toward the positive electrode through the separator. Lithium-ion batteries are named after the lithium ions migrate back and forth during charging and discharging.
 

LiFePO4 battery main performance
The nominal voltage of the LiFePO4 battery is 3.2 V, the termination charging voltage is 3.6 V, and the termination discharge voltage is 2.0 V. Due to the quality and process of the positive and negative materials and electrolyte materials used by various manufacturers, there will be some differences in their performance. For example, the same model (standard battery of the same package) has a large difference in battery capacity (10% to 20%).

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