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dc.contributor.author
Hu, Yinan
dc.contributor.author
Iwata, Geoffrey Z.
dc.contributor.author
Mohammadi, Mohaddese
dc.contributor.author
Silletta, Emilia Victoria
dc.contributor.author
Wickenbrock, Arne
dc.contributor.author
Blanchard, John W.
dc.contributor.author
Budker, Dmitry
dc.contributor.author
Jerschow, Alexej
dc.date.available
2021-07-27T18:49:16Z
dc.date.issued
2020-05
dc.identifier.citation
Hu, Yinan; Iwata, Geoffrey Z.; Mohammadi, Mohaddese; Silletta, Emilia Victoria; Wickenbrock, Arne; et al.; Sensitive magnetometry reveals inhomogeneities in charge storage and weak transient internal currents in Li-ion cells; National Academy of Sciences; Proceedings of the National Academy of Sciences of The United States of America; 117; 20; 5-2020; 10667-10672
dc.identifier.issn
0027-8424
dc.identifier.uri
http://hdl.handle.net/11336/137101
dc.description.abstract
The ever-increasing demand for high-capacity rechargeable batteries highlights the need for sensitive and accurate diagnostic technology for determining the state of a cell, for identifying and localizing defects, and for sensing capacity loss mechanisms. Here, we leverage atomic magnetometry to map the weak induced magnetic fields around Li-ion battery cells in a magnetically shielded environment. The ability to rapidly measure cells nondestructively allows testing even commercial cells in their actual operating conditions, as a function of state of charge. These measurements provide maps of the magnetic susceptibility of the cell, which follow trends characteristic for the battery materials under study upon discharge. In particular, hot spots of charge storage are identified. In addition, the measurements reveal the capability to measure transient internal current effects, at a level of μA, which are shown to be dependent upon the state of charge. These effects highlight noncontact battery characterization opportunities. The diagnostic power of this technique could be used for the assessment of cells in research, quality control, or during operation, and could help uncover details of charge storage and failure processes in cells.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
National Academy of Sciences
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
BATTERIES
dc.subject
LI-ION
dc.subject
FAILURES
dc.subject.classification
Física Atómica, Molecular y Química
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Sensitive magnetometry reveals inhomogeneities in charge storage and weak transient internal currents in Li-ion cells
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2021-07-01T15:15:29Z
dc.identifier.eissn
1091-6490
dc.journal.volume
117
dc.journal.number
20
dc.journal.pagination
10667-10672
dc.journal.pais
Estados Unidos
dc.journal.ciudad
Washington DC
dc.description.fil
Fil: Hu, Yinan. Johannes Gutenberg Universitat Mainz; Alemania
dc.description.fil
Fil: Iwata, Geoffrey Z.. Johannes Gutenberg Universitat Mainz; Alemania
dc.description.fil
Fil: Mohammadi, Mohaddese. University of New York; Estados Unidos
dc.description.fil
Fil: Silletta, Emilia Victoria. University of New York; Estados Unidos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Física Enrique Gaviola. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina
dc.description.fil
Fil: Wickenbrock, Arne. Johannes Gutenberg Universitat Mainz; Alemania
dc.description.fil
Fil: Blanchard, John W.. Helmholtz Institute Mainz; Alemania
dc.description.fil
Fil: Budker, Dmitry. Johannes Gutenberg Universitat Mainz; Alemania
dc.description.fil
Fil: Jerschow, Alexej. University of New York; Estados Unidos
dc.journal.title
Proceedings of the National Academy of Sciences of The United States of America
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://www.pnas.org/lookup/doi/10.1073/pnas.1917172117
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1073/pnas.1917172117
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