What are the requirements of polymer lithium battery for protecting IC performance?

The requirements of polymer lithium battery for the protection of IC performance: 1. High precision of overcharge protection. When the lithium battery is overcharged, in order to prevent the internal pressure from rising due to temperature rise, the charging state must be cut off. The protection IC will detect the battery voltage, and when overcharge is detected, the power of the overcharge detection will be cut off to stop charging. At this time, attention should be paid to the high precision of the detection voltage of overcharge. When the battery is charged, it is a problem that users are very concerned about to charge the battery to a full state. At the same time, safety issues must be taken into account. Therefore, the allowable voltage must be reached. When the charging state is cut off. To meet these two conditions at the same time, there must be a high-precision detector. The current precision of the detector is 25mV, and this precision needs to be further improved. 2. Reduce the power consumption of the protection IC. With the increase in use time, the voltage of the charged lithium battery will gradually decrease, and finally it will be lower than the standard value, and then it will be charged again. If you continue to use it without charging, it may cause the battery to fail to continue to use due to over-discharge. In order to prevent over-discharge, the protection IC must detect the battery voltage. Once it reaches the over-discharge detection voltage or below, it must cut off the power of the discharge side to stop the discharge. But at this time, the battery itself still has natural discharge and current consumption of the protection IC, so the current consumption of the protection IC must be minimized. 3. Low battery power consumption When in the protection state, its static current consumption must be less than 0.1μA. 4. Zero-volt rechargeable Some storage batteries may cause the voltage to be as low as 0V due to too long or abnormal reasons during storage, so the protection IC can also be charged at 0V. 5. High voltage will appear instantly when the high voltage battery pack is connected to the charger, so the protection IC should meet the requirements of high voltage resistance. 6. Overcurrent/short circuit protection requires low detection voltage and high precision requirements statement: Some pictures and content of articles published on this site are from the Internet, if there is any infringement, please contact to delete the previous article: power-type lithium battery and ordinary lithium What are the differences between batteries?