Discussion on Testing Method for Consistency of Li-ion Battery Pack
The inconsistency of lithium-ion cells in lithium-ion battery pack often leads to a barrel effect in the battery.The worst cell or parallel block determines the performance of the entire battery,which makes it difficult to fully utilize the energy,power,and other performance of the battery.This leads to a decrease in the overall performance of the battery,which in turn makes the entire battery prone to problems such as rapid capacity decay and short lifespan during cyclic use.Therefore,the consistency test of lithium-ion battery is extremely important.The testing methods of consistency of lithium-ion battery are explored and studied from the three aspects of the definition and requirements,testing methods,and testing examples.Suggestions for R&D and design personnel to consider internal resistance,capacity management,balance performance,and other aspects,and it is also suggested that the internal resis-tance,capacity management and balance performance should be considered when designing the corresponding pro-tection plate,which has important reference significance for improving the performance of lithium-ion battery pack.
lithium-ion battery and battery packconsistencyoverchargeoverdischargetesting method
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维普
