On the coupling between stress and voltage in lithium-ion pouch cells

John Cannarella, Collen Z. Leng, Craig B. Arnold

Research output: Chapter in Book/Report/Conference proceedingConference contribution

22 Scopus citations

Abstract

This paper studies the coupling between stress and open circuit voltage in a commercial lithium-ion pouch cell. This coupling is characterized through measurements of a coupling factor, which is defined as the rate of change in voltage with respect to applied mechanical stress. Based on a simple thermodynamic model, this coupling factor is expected to be related to the expansion characteristics of the pouch cell during charging. The expansion characteristics of the pouch cell are compared with measurements of the coupling factors at different states of charge, and are found to be in agreement with the simple thermodynamic model. This work opens the door for the development of mechanical force sensors based on intercalation materials.

Original languageEnglish (US)
Title of host publicationEnergy Harvesting and Storage
Subtitle of host publicationMaterials, Devices, and Applications V
PublisherSPIE
ISBN (Print)9781628410525
DOIs
StatePublished - Jan 1 2014
EventEnergy Harvesting and Storage: Materials, Devices, and Applications V - Baltimore, MD, United States
Duration: May 5 2014May 6 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9115
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherEnergy Harvesting and Storage: Materials, Devices, and Applications V
CountryUnited States
CityBaltimore, MD
Period5/5/145/6/14

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Keywords

  • Force sensor
  • Intercalation material
  • Lithium-ion battery
  • Load cell
  • Mechanical stress coupling

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  • Cite this

    Cannarella, J., Leng, C. Z., & Arnold, C. B. (2014). On the coupling between stress and voltage in lithium-ion pouch cells. In Energy Harvesting and Storage: Materials, Devices, and Applications V [91150K] (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9115). SPIE. https://doi.org/10.1117/12.2055152