What are the important functions of the lithium battery pack protection board?

Is it possible to charge lithium iron phosphate batteries without a protective board? At present, with the development of new energy ships, lithium iron phosphate batteries are increasingly widely used in hybrid ships. Lithium iron phosphate battery has many superior characteristics such as high energy, wide operating temperature range, stable operating voltage and long storage life. However, lithium iron phosphate batteries also have instability problems such as fires that may occur in harsh environments. Therefore, the safety protection of the protection board on the lithium iron phosphate battery is very important. However, so far, there has not been a battery manufacturer that publicly declares not to use the protection board. The lithium battery protection board is to protect the charging and discharging of lithium battery packs connected in series. When fully charged, it can ensure that the voltage difference between the individual cells is less than the set value, realize the equal charge of the individual cells of the battery pack, and effectively improve the charging effect in the series charging mode. Important functions of lithium battery pack protection board 1) Overcharge protection function The overcharge protection function refers to the prohibition of continued charging by the charger when a certain voltage (hereinafter referred to as the overcharge detection voltage) is reached. That is, the MOS tube that controls overcharge is turned off to stop charging. 2) Over-discharge protection function The over-discharge protection function stops discharging the load when the battery voltage drops. The MOS tube that controls the over-discharge enters the off state, and it is prohibited from discharging. This process is just the opposite of the action during overcharge detection. 3) Over-current protection function The over-current protection function stops discharging the load when a large current is consumed. The purpose of this function is to protect the lithium battery pack and MOS tube to ensure the safety of the battery under working conditions. After the over-current detection, the battery will return to the normal state after being separated from the load, and can be recharged or discharged. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous article: How to maintain the battery in daily use?