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Title: Rapid Impedance Spectrum Measurements for Onboard State-of-Health Applications

Abstract

Rapid impedance measurements can provide a useful online tool for improved state-of-health estimation. A validation study has been initiated at the Idaho National Laboratory for a rapid impedance technique known as Harmonic Compensated Synchronous Detection. This technique enables capturing the impedance spectra over a broad frequency range within about ten seconds. Commercially available lithium-ion cells are being calendar-life aged at 50°C with reference performance tests at 30°C every 32.5 days to gauge degradation The cells have completed the first set of reference performance tests and preliminary results are presented. The spectra change as a function of temperature and depth-of-discharge condition, as expected. The data indicate that the rapid impedance measurement technique is a benign measurement tool that can be successfully used to gauge changes in the corresponding pulse resistance.

Authors:
; ;
Publication Date:
Research Org.:
Idaho National Laboratory (INL)
Sponsoring Org.:
DOE - EE
OSTI Identifier:
1056032
Report Number(s):
INL/CON-11-24321
DOE Contract Number:  
DE-AC07-05ID14517
Resource Type:
Conference
Resource Relation:
Conference: 45th POWER SOURCES CONFERENCE,Las Vegas, Nevada,06/11/2012,06/14/2012
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; Rapid Impedance Spectrum Measurements; State-of-Health Tehcnologies

Citation Formats

Christophersen, Jon P, Morrison, John L, and Ho, Chinh D. Rapid Impedance Spectrum Measurements for Onboard State-of-Health Applications. United States: N. p., 2012. Web.
Christophersen, Jon P, Morrison, John L, & Ho, Chinh D. Rapid Impedance Spectrum Measurements for Onboard State-of-Health Applications. United States.
Christophersen, Jon P, Morrison, John L, and Ho, Chinh D. Fri . "Rapid Impedance Spectrum Measurements for Onboard State-of-Health Applications". United States. https://www.osti.gov/servlets/purl/1056032.
@article{osti_1056032,
title = {Rapid Impedance Spectrum Measurements for Onboard State-of-Health Applications},
author = {Christophersen, Jon P and Morrison, John L and Ho, Chinh D},
abstractNote = {Rapid impedance measurements can provide a useful online tool for improved state-of-health estimation. A validation study has been initiated at the Idaho National Laboratory for a rapid impedance technique known as Harmonic Compensated Synchronous Detection. This technique enables capturing the impedance spectra over a broad frequency range within about ten seconds. Commercially available lithium-ion cells are being calendar-life aged at 50°C with reference performance tests at 30°C every 32.5 days to gauge degradation The cells have completed the first set of reference performance tests and preliminary results are presented. The spectra change as a function of temperature and depth-of-discharge condition, as expected. The data indicate that the rapid impedance measurement technique is a benign measurement tool that can be successfully used to gauge changes in the corresponding pulse resistance.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {6}
}

Conference:
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