What is the principle of lithium iron battery protection board

The principle of lithium-ion battery protection board (rechargeable type) is determined by its own characteristics. Since the material of the lithium-ion battery protection board principle itself determines that it cannot be overcharged, over-discharged, over-current, short-circuited, and ultra-high temperature charging and discharging, the lithium battery components of the lithium-ion battery always follow a delicate protection board and a current fuse appear. The protection function of lithium-ion battery is usually completed by the protection circuit board and PTC. The protection board is composed of electronic circuits. It can accurately monitor the voltage of the battery cell and the current of the charging and discharging circuit under the environment of -40℃ to +85℃. Instantly control the on and off of the current loop; PTC prevents severe damage to the battery in a high temperature environment. The principle of iron-lithium-ion battery protection board usually includes control IC, MOS switch, resistor, capacitor and auxiliary device NTC, ID memory and so on. Among them, the control IC controls the MOS switch to turn on under all normal conditions to make the cell communicate with the external circuit. When the cell voltage or loop current exceeds the specified value, it immediately controls the MOS switch to turn off (tens of milliseconds). Protect the safety of batteries. NTC is the abbreviation of Negativetemperaturecoefficient, which means negative temperature coefficient. When the ambient temperature rises, its resistance decreases. The electrical equipment or charging equipment is used to respond in time and control internal interruptions to stop charging and discharging. ID memory is often a single-wire interface memory. ID is the abbreviation of Identification, which means identification, and stores information such as battery type and production date. Can play a role in product traceability and application restrictions. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: Which directions are important for battery energy storage projects?