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Title: Method for conducting nonlinear electrochemical impedance spectroscopy

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.
Inventors:
; ; ;
Issue Date:
OSTI Identifier:
1183352
Assignee:
University of Washington (Seattle, WA) NETL
Patent Number(s):
9,046,463
Application Number:
11/408,594
Contract Number:
FC26-02NT41566
Research Org:
Univ. of Washington, Seattle, WA (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 97 MATHEMATICS AND COMPUTING

Works referenced in this record:

Corrosion rate measurements by non-linear electrochemical impedance spectroscopy
journal, June 1995

Nonlinear electrochemical impedance spectroscopy for solid oxide fuel cell cathode materials
journal, January 2006