Strain measurement based battery testing

Xu, Jeff Qiang; Steiber, Joe; Wall, Craig M.; Smith, Robert; Ng, Cheuk

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DOE OSTI · 1358222

Strain measurement based battery testing

Xu, Jeff Qiang·Steiber, Joe·Wall, Craig M.·Smith, Robert·Ng, Cheuk

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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.

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BibTeX RIS

Xu, Jeff Qiang, Steiber, Joe, Wall, Craig M., Smith, Robert, Ng, Cheuk. 2017-05-23. Strain measurement based battery testing. https://www.osti.gov/biblio/1358222

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