What are the basic essentials for charging lithium polymer batteries?

The charging and discharging of polymer lithium ion batteries and liquid lithium ion batteries actually communicate. There are two important methods: constant voltage charging and constant current charging, and the two can also be staggered. In constant current charging, the capacity of the battery increases with time, and the internal resistance of the battery increases continuously, and the charging becomes slow. At this time, we shouldn't think that the charging is complete, and we need to slow down the charging for a period of time. The general manufacturer of polymer lithium-ion batteries first recycles the constant current to charge the battery, and then recycles the constant voltage current to charge. Current, voltage, and cell phone power are all changing over time, which ensures that the cell phone’s battery can be filled quickly. Current charging methods for polymer lithium-ion batteries generally recover constant current and constant voltage charging: the battery is first charged with a constant current CC, when the battery voltage rises to a certain value (4.2V), the voltage remains stable CV, and the current in the circuit drops to a very high value. Small, eventually tending to 0. Polymer lithium-ion batteries cannot be overcharged. If overcharge occurs, it will have a great impact on the performance of the battery. The negative electrode will produce metal lithium deposits, which may cause the battery to explode or catch fire. At the same time, the solvent in the electrolyte is resolved, causing serious battery performance Shattered. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.