What are the characteristics of lithium iron phosphate batteries?

Lithium iron phosphate battery is a lithium -ion battery using lithium iron phosphate (Lifepo4) as a positive electrode material. Carbon is used as a lithium -ion battery. The rated voltage of the single body is 3.2V and the charging intercept voltage is 3.6V ~ 3.65V.

During the charging process, some lithium ions in lithium iron phosphate were removed, passed through the electrolyte to the negative electrode, and embedded in the negative electrode carbon material. At the same time, the electrons were released from the positive electrode, reached the negative electrode from the external circuit to maintain the balance of chemical reactions. During the discharge process, the lithium ion was removed from the negative electrode, reached the positive electrode through the electrolyte, and the electrons were released at the same time.

High energy density

According to reports, the energy density of a square aluminum-shaped iron phosphate battery in 2018 is about 160Wh/KG. In 2019, some excellent battery manufacturers can achieve the level of 175-180Wh/kg. The film and capacity are large, or they can achieve 185Wh/kg.

Good safety performance

The electrochemical performance of the positive electrode material of the lithium iron phosphate battery is relatively stable, which determines that it has a stable charging and discharge platform. Therefore, the structure of the battery will not change during the charging and discharge process, and it will not burn and explode. Under special conditions such as charging, squeezing, acupuncture, etc., it is still very safe.

Long cycle life

Lithium iron phosphate batteries have generally reached 2000 times, or even more than 3500 times, and the requirements for the energy storage market will reach 4,000-5000 times, ensuring the service life of 8-10 years.The cycle life of more than 1,000 three yuan batteries, while the long life of lead -acid batteries is about 300 times.