Interlaboratory comparison of battery impedance analyzers calibration

• The paper reports a results of series of interlaboratory comparisons of low impedance measurements at frequencies relevant for electrochemical impedance spectroscopy (EIS) of commercial lithium-ion cells. Two comparisons are presented. The first, bilateral comparison has focused on low impedance standards calibration in a full complex plane using digital sampling setups. The second comparison has focused on calibration and use of commercial 4-terminal battery EIS meters. Both comparisons have covered the impedance range from 50μ℧ to 100m℧ across the full complex plane in a frequency range from 0.01Hz up to 5kHz. Finally, the paper summarizes practices identified as critical for achieving measurement compatibility among various labs. © 2023 The Authors

Subject headings

TEKNIK OCH TEKNOLOGIER  -- Elektroteknik och elektronik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Electrical Engineering, Electronic Engineering, Information Engineering (hsv//eng)

Keyword

Battery

Comparison

Electrochemistry

Impedance

Impedance spectrum

Li-ion battery

Calibration

Electrochemical impedance spectroscopy

Battery impedance

Complex planes

Electrochemical-impedance spectroscopies

Impedance analyzer

Interlaboratory comparison

Low impedance

Lithium-ion batteries

Publication and Content Type

ref (subject category)

art (subject category)