병렬 이차전지의 인덕터 션트에 대한 위상 응답

다국어 초록 (Multilingual Abstract)

The independently measured secondary batteries were connected in parallel and the phase response was measured using an inductor shunt. Because the inductor shunt allows the internal resistance of the secondary battery to be measured by the phase delay response, the phase response according to the decrease in the internal resistance of the parallel bound secondary battery was simulated and compared through measurement experiments. The maximum phase response frequency was explored using an inductor shunt of 33(μH), and the phase response was measured by connecting three lead-acid batteries with a phase delay response of about 1.8° at each frequency in parallel. The simulation result showed a response of 1.42°, which is smaller than that of each secondary battery, and in the secondary battery measurement experiment, a phase response of 1.91° reflecting the connection resistance effect of the secondary battery could be The results show that secondary batteries connected in parallel can be diagnosed by a phase response to the inductor shunt as the internal resistance decreases.