Lithium-ion Phosphate Battery

12V lithium battery 1220-2

It uses lithium iron phosphate as a material

The lithium iron phosphate battery is a lithium-ion battery using lithium iron phosphate as the positive electrode material and carbon as the negative electrode material. It has the advantages of high working voltage, high capacity density, long cycle life, good safety performance, low self-discharge rate, and no memory effect. During charging, part of the lithium ions in the lithium iron phosphate is extracted and transferred to the negative electrode through the electrolyte. At the same time, the positive electrode releases electrons and reaches the negative electrode from the external circuit to maintain the balance of the chemical reaction; when discharging, the lithium ions are released from the negative electrode and reach the positive electrode through the electrolyte. At the same time, the negative electrode releases electrons and reaches the positive electrode from the external circuit to provide energy for the outside world.

Chinese Name磷酸铁锂电池
English NameLithium-ion Phosphate Battery
AnodeLithium-ion Phosphate
CathodeCarbon(Graphite)
Rated Voltage3.2V
Charge cut-off voltage3.6~3.65V
StrengthGood safety performance, long cycle life, wide source of raw materials, high energy density, no pollution

The full name of lithium iron phosphate battery is lithium iron phosphate lithium-ion battery, abbreviated as lithium iron phosphate battery. Because its performance is particularly suitable for power applications, some people call it a lithium-iron power battery.

As a rechargeable battery, the requirements are: high capacity, high output voltage, good charge and discharge cycle performance, stable output voltage, high current charge and discharge, electrochemical stability, safe in use, non-toxic and pollution-free. The lithium iron phosphate battery using LiFePo4 as the positive electrode has good performance requirements, especially for large discharge (5~10C discharge), stable discharge voltage, safety, life, and no pollution to the environment, he is the best. , is currently the best high-current output power battery.

Main Performance

ItemPerformance
Typical Capacity5Ah-300Ah
Rated Voltage3.2V
Charge cut-off voltage3.6V
Discharge cut-off voltage2V
Resistance30~80mΩ
Max charge current1~3C
Normal charge current0.2~0.5C
Max discharge current5~10C
Normal discharge current0.5~1C
Work temperatureCharge: 0~45℃
Discharge: -20~60℃

High Safety

The P-O bond in the lithium iron phosphate crystal is stable and difficult to decompose. Even at high temperatures or overcharges, it will not collapse and generate heat or form strong oxidizing substances like lithium cobaltate, so it has good safety.

Big Lifespan

The cycle life can reach more than 2000 times, and the standard charging (0.2C) can reach 2000 times.

Good high-temperature performance

The electric heating peak of lithium iron phosphate can reach 300~500°C, while lithium cobalt oxide is only around 200°C.

Big Capacity

Has a larger capacity than ordinary batteries (lead acid, etc.). 5Ah-100Ah cell.

No memory effect

No matter what state the battery is in, it can be used at any time without having to discharge it before charging.

Lightweight

The volume of the lithium iron phosphate battery of the same specification and capacity is 2/3 of the volume of the lead-acid battery, and the weight is 1/3 of the lead-acid battery.

Environment friendly

The battery is generally regarded as free of any heavy metals and rare metals, non-toxic, non-polluting, in line with European RoHS regulations, and is an absolute green battery.

Application

Lithium iron phosphate batteries are widely used in passenger cars, energy storage and other fields due to their advantages in safety and low cost.

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