Method for conducting nonlinear electrochemical impedance spectroscopy
US9046463B1 · kind B1 · utility
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17Claims
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Key dates
| Filing date | Apr 21, 2006 |
| Grant date | Jun 2, 2015 |
| Priority date | — |
| Expiry date | Apr 16, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/021
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for conducting nonlinear electrochemical impedance spectroscopy. The method includes quantifying the nonlinear response of an electrochemical system by measuring higher-order current or voltage harmonics generated by moderate-amplitude sinusoidal current or voltage perturbations. The method involves acquisition of the response signal followed by time apodization and fast Fourier transformation of the data into the frequency domain, where the magnitude and phase of each harmonic signal can be readily quantified. The method can be implemented on a computer as a software program.
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