电压检测电路对锂离子电池组的影响

对锂离子电池组中的电压检测电路进行了分析,设计了一种实用的电压检测电路.通过10只锂离子电池组的循环寿命实验,验证了电池组中单体电池随着循环的进行,差异变大;通过提高输入阻抗的方法,研究电池组循环寿命,结果表明:检测电路的设计应该考虑对电池组一致性的影响;提出了在实际应用中,减小电压检测电路对电池组的影响的方法.

Effects of the measuring voltages circuit on Li-ion batteries piles

The measuring voltage circuit in Li-ion batteries piles was analyzed and designed.It was experimentally revealed that the difference in performance among the batteries increased with the cycles for Li-ion battery by using ten Li-ion batteries piles.The cyclic life of Li-ion batteries piles was studied by increasing input impedance. The results showed that the effects on the consistency of batteries series should be considered, when designing measuring circuit. The methods that mitigated the (effect) of measuring voltages circuit on Li-ion batteries piles were considered.