Analysis of charging method of polymer lithium battery

Polymer lithium battery charging method At present, lithium charging mainly adopts two methods of voltage limiting and current limiting. In the initial stage of constant current charging, the battery's receiving capacity is the largest. As the charging process continues, the polarization increases, the temperature rises, and the voltage rises. In the constant voltage stage, that is, trickle charging, it takes about 30% of the time to charge 10% of the battery. The current intensity is reduced, and the temperature rise is no longer added. This process considers the total voltage or average voltage control of the battery pack. In fact, there is always a battery with a higher voltage, and it has already entered the charging stage in relation to the other batteries in the battery pack. Similarly, during the discharge process, there are over-discharged batteries in the group, and over-charge and over-discharge are fatal to the battery. The difference is that a large amount of gas is generated during overcharging, which is easy to ignite and explode, and the appearance is violent. The over-release phenomenon changes slightly, but the failure speed is extremely fast, and it should be strictly prevented in normal use. , There is a new lithium battery charging method called parallel control, balance management, each energy-saving core that can be charged and discharged is individually managed, balance control, dynamic balance concentration balance discharge and charge balance have the advantages of two balances, although single There are differences in the initial capacity, voltage, and resistance between battery cells. During work, the consistency of the charge and discharge intensity and the consistency of the relative depth can be ensured, and the life of the common end is gradually reached. This method is particularly suitable for high current discharge. Lithium batteries, therefore, must use a dedicated lithium battery charger, pay special attention to the engineering matching used with the battery parameters, it should be agreed, when the lithium battery is combined, a PCB battery protection board must be added to prevent battery specific Pack, discharge, fire, explosion, and even extend the life of the battery as much as possible, but charge and discharge, add battery recycling. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.