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What are the principles of fast charging of lithium battery chargers

by:Vglory      2021-03-19
Lithium battery charger fast charging principle Generally speaking, fast charging uses DC charging. A simple understanding of fast charging mode is to use large current to quickly charge the battery in less than 1 hour. Secondly, regarding the internal battery, when fast charging Lithium ions need to accelerate instantaneous insertion into the negative electrode. First, use a wider charging pulse to charge, and the terminal voltage of the battery rises. When the charging time is reached, the charger suspends charging. When the charging interval reaches another point, the charger continues to charge. The fast charging method contains two parts: the charger part and the power management part. The chip of the power management part is placed in the mobile smart terminal, and some are directly integrated into the mobile phone cover. The power management chip manages the entire charging process of the lithium battery. And monitoring contains complex solving algorithms. Lithium battery charging includes several stages: pre-charge stage, constant current charging stage, constant voltage charging stage, trickle charging stage. The charging management chip is based on the electrical appliances of each stage of the lithium battery charging process. Features: Send instructions to the charger to notify the charger to change the charging voltage and current, and the charger receives the demand from the charging management system, adjusts the output parameters of the charger in real time, and cooperates with the charging management system to achieve fast charging. Fast charging refers to a charging method with a charging current greater than 0.1C. This charging method has a very small impact on the life and stability of a single lithium battery; but if it is concerned with the battery pack of a battery car, fast charging is to exchange time for the battery An act of life. 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: Which battery needs to be replaced?
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