For the current radio enthusiasts, a change brought by scientific and technological progress is that enthusiasts have gradually changed into light Lifepo4 batteries. New technology applications require enthusiasts to have a new understanding of them,

The Lifepo4 battery has gained the love of many enthusiasts because of its lighter weight at the same capacity, but this does not mean that the traditional lithium battery can be thrown away and replaced with the Lifepo4 battery. There is no type of battery that can meet the needs of all applications under the current technical conditions.

Lithium phosphate batteries were invented in the second half of the 1990s. Just like many other inventions, this battery took several years to become cheap and practical. This compound is very stable, but in general, the internal resistance of this sign is too large. People use good conductors -such as graphite -package compounds to reduce internal resistance.

This battery has many advantages, and the biggest advantage for radio enthusiasts is the more stable discharge voltage. When the traditional battery is full, the discharge voltage is high, and then the voltage gradually decreases with the process of discharge. The voltage of the Lifepo4 battery is almost not changed with the process of discharge.

Lifepo4 is a very stable compound, which makes this battery much safer than lithium batteries. There are often news about lithium battery explosion, and in many cases, it is not moving there, and it burn it itself. This phenomenon is generally called heat out of control. The Lifepo4 battery basically does not heat out. If you want to burn this battery, you have to accidentally destroy it.

As for harm, pollution is definitely there, but pollution is not large than lead -acid batteries, because it does not use heavy metals, which is a light pollution industrial project, but it also needs to pay attention to the following aspects:

1. The powder material is non -toxic, but it needs to be inhaled

2. SBR has a certain toxicity to prevent inhalation; NMP has mild toxicity, but there is no obvious effect. It needs to do strong corrosion resistance to prevent contact with the body

3. The electrolyte has a certain toxicity to prevent excessive inhalation and corrosion.

Lifepo4 battery pack basic structure

(1) Battery module

The specifications of the Iron Lithium battery are shown in the table below. For example, the 50AH iron battery requires a single battery with a single battery of 3.2V. This type of battery height is 4u, which can be embedded in the inorganic room cabinet, and a single battery pack can use a more capacity battery pack in parallel. For example, the two groups of 50AH battery packs can form a 100AH battery pack.

(2) Battery management system (BMS)

BMS is mainly used to manage the battery filling and discharge process, improve the service life of the battery, and provide users with relevant information. BMS is generally composed of monitoring, protecting circuits, electrical, communication interfaces, and thermal management devices. Its main functions include intelligent charging management, battery balance management, intelligent intermittent charging management, thermal system management and communication management.