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

doi:10.1149/10401.0075ecst

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

Materials Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

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 language	English
Title of host publication	240th ECS Meeting - New Approaches and Advances in Electrochemical Energy Systems
Publisher	IOP Publishing Ltd
Pages	75-85
Number of pages	11
Edition	1
ISBN (Electronic)	9781607685395
DOIs	https://doi.org/10.1149/10401.0075ecst
State	Published - 2021
Event	240th ECS Meeting - Orlando, United States Duration: Oct 10 2021 → Oct 14 2021

Publication series

Name	ECS Transactions
Number	1
Volume	104
ISSN (Print)	1938-6737
ISSN (Electronic)	1938-5862

Conference

Conference	240th ECS Meeting
Country/Territory	United States
City	Orlando
Period	10/10/21 → 10/14/21

Funding

The research described in this paper was primarily supported by Princeton University, and partially supported by NSF through the Princeton University (PCCM) Materials Research Science and Engineering Center DMR-1420541. The neutron diffraction work used resources at the Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. The authors thank Matthew Frost and Harley Skorpenske for their support for the neutron experiments.

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10.1149/10401.0075ecst

Cite this

Preimesberger, J. I., Kang, S. Y., Chen, Y., An, K., & Arnold, C. B. (2021). Investigating Mechano-Electrochemical Coupling Phenomenon in Lithium-Ion Pouch Cells Using In-situ Neutron Diffraction. In 240th ECS Meeting - New Approaches and Advances in Electrochemical Energy Systems (1 ed., pp. 75-85). Article 75 (ECS Transactions; Vol. 104, No. 1). IOP Publishing Ltd. https://doi.org/10.1149/10401.0075ecst

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

abstract = "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.",

author = "Preimesberger, \{Juliane Irine\} and Kang, \{Seung Yeon\} and Yan Chen and Ke An and Arnold, \{Craig B.\}",

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Preimesberger, JI, Kang, SY, Chen, Y , An, K & Arnold, CB 2021, Investigating Mechano-Electrochemical Coupling Phenomenon in Lithium-Ion Pouch Cells Using In-situ Neutron Diffraction. in 240th ECS Meeting - New Approaches and Advances in Electrochemical Energy Systems. 1 edn, 75, ECS Transactions, no. 1, vol. 104, IOP Publishing Ltd, pp. 75-85, 240th ECS Meeting, Orlando, United States, 10/10/21. https://doi.org/10.1149/10401.0075ecst

Investigating Mechano-Electrochemical Coupling Phenomenon in Lithium-Ion Pouch Cells Using In-situ Neutron Diffraction. / Preimesberger, Juliane Irine; Kang, Seung Yeon; Chen, Yan et al.
240th ECS Meeting - New Approaches and Advances in Electrochemical Energy Systems. 1. ed. IOP Publishing Ltd, 2021. p. 75-85 75 (ECS Transactions; Vol. 104, No. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Investigating Mechano-Electrochemical Coupling Phenomenon in Lithium-Ion Pouch Cells Using In-situ Neutron Diffraction

AU - Preimesberger, Juliane Irine

AU - Kang, Seung Yeon

AU - Chen, Yan

AU - An, Ke

AU - Arnold, Craig B.

PY - 2021

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N2 - 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.

AB - 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.

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BT - 240th ECS Meeting - New Approaches and Advances in Electrochemical Energy Systems

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ER -

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

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