Impedance is important for battery management systems (BMS) because it measures the battery's overall health and performance. The internal resistance of a battery changes over time and with usage, and a higher internal resistance indicates a decline in battery performance. By measuring the impedance of a battery, the BMS can determine the state of charge, and state of health and predict the remaining useful life of the battery. Additionally, impedance measurements can detect early signs of battery degradation and allow for preventative maintenance.

Impedance can also detect abnormal battery conditions such as overcharging, over discharging, and thermal runaway. By continuously monitoring the battery impedance, the BMS can detect these conditions and take appropriate action to protect the battery and prolong its life.

Furthermore, Impedance can also be used to detect the battery's aging and how much the battery can hold a charge. This gives a better understanding of the battery's health and how much capacity has been lost over time.

In summary, impedance is a crucial parameter for battery management systems because it provides a comprehensive understanding of the battery's health, performance, and remaining useful life. This information is essential for optimal battery management and prolonging the battery's life.

Hi Maam,

It plays an important role to know how the electrode-electrolyte responds toward the wide frequency range

The batteries' internal impedance (ZBatt.-spectra) as any other descend (near to ideal) Voltage (and power) sources should, always, be very much lower (ZBatt./ZLoad

Impedance is measuring the overall health and performance of the battery. It can detect battery degradation, abnormal conditions, and aging to ensure proper maintenance and extend battery life. It helps monitor the battery's state of charge and capacity loss.