Conventional charging methods and possible problems of lithium iron phosphate
Release time：2017-6-7 14:43:04 Click on the number of times：1397
Conventional charging methods and possible problems of lithium iron phosphate (LiFePO 4 battery have been analyzed,and a large number of experiments have been done. According to charge characteristics of single battery, a new charging method of LiFePO 4 battery has been proposed. This method is based on the relationship between battery voltage and state of charge (SOC) in the process of battery charge; determine the constant voltage value during the constant voltage process through the change rate of batter voltage, and control charge process of the battery combined with the maximum charge cut-off voltage. Experiments show that the battery can be charged into 100% of capacity by the new method. Simultaneity,avoids battery over-charge problem, reduces attenuation pace of battery capacity, and extends cycle life of battery.
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