Electric quantity balancing and charging method for lithium cell
A technology of power balance and charging method, which is applied in the direction of secondary battery charging/discharging, battery circuit device, secondary battery repair/maintenance, etc., and can solve problems such as the decline of charging capacity of serially connected lithium batteries
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[0014] The present invention provides a lithium battery power balance and charging method, which uses a low-point discharge method to make each lithium battery connected in series reach a power balance, so as to reduce the loss of power between each lithium battery under repeated cycles of charging and discharging. The difference that continues to accumulate.
[0015] When charging and discharging a series-connected lithium battery pack, due to the production error of each lithium battery, there will be differences in the storage capacity of the batteries during charging and discharging. And this difference will continue to accumulate under repeated cycles of charging and discharging, resulting in a decrease in the storage capacity of the entire set of series-connected lithium batteries as the number of uses increases. The present invention aims at this problem by as figure 1 The shown circuit device 1 capable of detecting voltage / balanced voltage / controlling current performs...
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