Nyquist Plot of Impedances
A group of battery cells are excited by a current source over a range of frequencies and their voltage response is simultaneously measured. For each measurable cell group, imaginary and real impedance (“Z”) is calculated at each frequency. A plot of each imaginary and real Z is known as a Nyquist Plot.
Voltage (V), Current (I) and Case Temperature (T) is insufficient data to accurately determine a battery's state of health (SoH) and State of Charge (SoC). By adding Impedance Spectrometry (Z) as an additional dimension, higher accuracy is obtained, along with early detection of anomalies.
A data set of V, I, T and Z allows for AI-based assessment to accurately determine the true state of your battery.
Artificial Intelligence (AI)
Our high-precision measurement of cell-specific impedance spectra enables us to accurately determine important battery states such as state of health, state of charge and internal cell temperature. By analyzing the impedance spectra of batteries, we can identify the underlying physical and chemical processes that affect battery performance and predict battery life. Our cutting-edge technology in combination with Artifical Intelligence allows us to provide you with the most accurate and reliable battery testing services available. Contact us today to learn more about how we can help you optimize your battery performance.
State of Health
Stationary Energy Storage Systems
Heavy Electric Vehicles
Battery Pack Refurbishment