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Title: Strain measurement based battery testing

Abstract

A method and system for strain-based estimation of the state of health of a battery, from an initial state to an aged state, is provided. A strain gauge is applied to the battery. A first strain measurement is performed on the battery, using the strain gauge, at a selected charge capacity of the battery and at the initial state of the battery. A second strain measurement is performed on the battery, using the strain gauge, at the selected charge capacity of the battery and at the aged state of the battery. The capacity degradation of the battery is estimated as the difference between the first and second strain measurements divided by the first strain measurement.

Inventors:
; ; ; ;
Issue Date:
Research Org.:
SOUTHWEST RESEARCH INSTITUTE, San Antonio, TX (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1358222
Patent Number(s):
9660299
Application Number:
14/102,197
Assignee:
SOUTHWEST RESEARCH INSTITUTE
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01M - PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
DOE Contract Number:  
AR0000277
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Dec 10
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE

Citation Formats

Xu, Jeff Qiang, Steiber, Joe, Wall, Craig M., Smith, Robert, and Ng, Cheuk. Strain measurement based battery testing. United States: N. p., 2017. Web.
Xu, Jeff Qiang, Steiber, Joe, Wall, Craig M., Smith, Robert, & Ng, Cheuk. Strain measurement based battery testing. United States.
Xu, Jeff Qiang, Steiber, Joe, Wall, Craig M., Smith, Robert, and Ng, Cheuk. Tue . "Strain measurement based battery testing". United States. https://www.osti.gov/servlets/purl/1358222.
@article{osti_1358222,
title = {Strain measurement based battery testing},
author = {Xu, Jeff Qiang and Steiber, Joe and Wall, Craig M. and Smith, Robert and Ng, Cheuk},
abstractNote = {A method and system for strain-based estimation of the state of health of a battery, from an initial state to an aged state, is provided. A strain gauge is applied to the battery. A first strain measurement is performed on the battery, using the strain gauge, at a selected charge capacity of the battery and at the initial state of the battery. A second strain measurement is performed on the battery, using the strain gauge, at the selected charge capacity of the battery and at the aged state of the battery. The capacity degradation of the battery is estimated as the difference between the first and second strain measurements divided by the first strain measurement.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {5}
}

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