Investigating Mechano-Electrochemical Coupling Phenomenon in Lithium-Ion Pouch Cells Using In-situ Neutron Diffraction

Juliane Irine Preimesberger, Seung Yeon Kang, Yan Chen, Ke An, Craig B. Arnold

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

1 Scopus citations


In lithium-ion battery electrode materials, internal mechanical strain is coupled to electrochemical processes. As a result, lithium-ion electrodes can be used for mechano-electrochemical energy harvesting. A promising way to investigate this mechano-electrochemical coupling is through neutron scattering, which can measure the lighter elements that compose battery anodes. In this paper, we conduct in-situ neutron diffraction studies on commercial lithium-ion pouch cells using the VULCAN diffractometer at the Spallation Neutron Source (SNS) at Oak Ridge National Laboratory. By applying stress on these pouch cells, and examining the phase-specific lattice strains, Bragg peak intensities, and peak broadening, we can gain insight into the mechano-electrochemical correlation in lithium-ion electrodes. We measure a negative electrochemical lattice strain of the graphite electrode, indicating that stress causes lithium ions to leave the graphite structure.

Original languageEnglish (US)
Title of host publication240th ECS Meeting - New Approaches and Advances in Electrochemical Energy Systems
PublisherIOP Publishing Ltd.
Number of pages11
ISBN (Electronic)9781607685395
StatePublished - 2021
Event240th ECS Meeting - Orlando, United States
Duration: Oct 10 2021Oct 14 2021

Publication series

NameECS Transactions
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862


Conference240th ECS Meeting
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • General Engineering


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