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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  
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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  
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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