Electrical architecture for electrochemical impedance spectroscopy

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United States of America Patent

PATENT NO 11435405
APP PUB NO 20210373081A1
SERIAL NO

16630601

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Abstract

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The present disclosure provides electrical architecture for electrochemical impedance spectroscopy (EIS). An EIS circuit comprises at least two current regulators and an electrical energy storage device, which are connected with one or more electrochemical cells in a configuration that decouples power flowing into the respective current regulators. The presence of the electrical energy storage device enables each regulator to operate simultaneously at lower power levels while inducing the desired EIS perturbation current. Operation at low power allows lower volume and cost for the same current compared to only dissipative or non-dissipative current regulators. Further, the electrical energy storage device allows the power flowing through the current regulators to be varied independently in order to achieve the desired EIS perturbation current while a minimum amount of heat is generated in the circuit, thus allowing the circuit to occupy minimal size and incur minimal cost.

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Patent Owner(s)

  • THE GOVERNING COUNCIL OF THE UNIVERSITY OF TORONTO; ELEAPPOWER LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gong, Zhe Toronto, CA 2 4
Trescases, Olivier Toronto, CA 30 183

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