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In-situ AC Impedance Analyzer
In-situ EIS Measurement for 20V - 600A range batteries with software programs.
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In-situ AC Impedance Analyzer
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In-situ AC Impedance Analyzer
In-situ AC Impedance Analyzer
Stropower‘s In-situ AC Impedance Analyzer simultaneously performs high precision AC impedance analysis while running Regular DC charging and discharging cycles. Its exceptional accuracy enables detailed capture of the battery’s electrochemical dynamics, making it ideal for analyzing new battery materials, power characteristics design, SoC/SoH assessment, internal temperature monitoring, thermal runaway Detection, and identifying other critical issues.
Difference between equilibrium EIS and In-situ EIS
Basically in situation means current loading for batteries in charging or discharging periods. The in situation electro-chemical impedance spectrum is determined with respectively higher current than battery in chemical equilibrium state while expressing static EIS with small stimulate current in mA level. A lot of mechanism are behind the in-situ EIS that gives analysist clues to monitoring the internal process or battery status.

The Deference Between EIS and In-situ EIS for Lithium-ion Batteries relating to SoC% & Temperature

Feature of In-situ AC Impedance Analyzer
∗ Wide DC current supply 10A or 200A or 600A (range levels) for 20Vd.c.
∗ Fast-response for current call: 500 us (10% ~ 90%) , 700 us (-90% ~ 90%)
∗ High Accuracy for control and measurement (DC): ± 0.02% (voltage) ± 0.02% (current)
∗ AC Current superimposed for In-situ EIS function: 30 App for 0.01 ~ 2 kHz
∗ O1ptional for ripple heating validation test with ripple current capacity: 1000 App for 0.01 ~ 1 kHz (derating after 1kHz)
∗ Support lowest to 1ms DAQ interval
Parameters for In-situ AC Impedance Analyzer

Functionalities of Stropower‘s In-situ AC Impedance Analyzer

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