Direct in situ determination of the surface area and structure of deposited metallic lithium within lithium metal batteries using ultra small and small angle neutron scattering

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dc.contributor.authorDidier, Cen_AU
dc.contributor.authorGilbert, EPen_AU
dc.contributor.authorMata, JPen_AU
dc.contributor.authorPeterson, VKen_AU
dc.date.accessioned2023-11-17T02:28:50Zen_AU
dc.date.available2023-11-17T02:28:50Zen_AU
dc.date.issued2023-10-10en_AU
dc.date.statistics2023-11-06en_AU
dc.description.abstractDespite being the major cause of safety and performance issues in lithium metal batteries, experimental difficulties in quantifying directly the morphology of lithium deposited at electrode surfaces have meant that the mechanism of metallic lithium growth within batteries remains elusive. This study demonstrates that quantitative detail about the morphology of metallic lithium within batteries can be derived non-destructively and directly using in situ ultra-small and small-angle neutron scattering. This information is obtained over a large electrode area in cells where lithium deposition processes are typical of real-world applications. Complex variations of surface area and interfacial distances 1–10 µm and 100–300 nm are revealed in size that are influenced by current density and cell cycling history, providing valuable insight into the growth of metallic lithium features detrimental to battery performance. Such quantitative insight into the process of lithium growth is required for the development of safer high-performance lithium metal batteries. © 2023 Commonwealth of Australia. Advanced Energy Materials published by Wiley-VCH GmbH. This is an open access article under the terms of the Creative Commons Attribution License.en_AU
dc.description.sponsorshipAccess to Kookaburra and Quokka instruments was supported by ANSTO beamtime awards (proposal P8690 and DB9219). This work benefited from the use of the SasView program, originally developed under NSF award DMR-0520547. SasView contains code developed with funding from the European Union's Horizon 2020 research and innovation programme under the SINE2020 project, grant agreement No 654000. Open access publishing facilitated by Australian Nuclear Science and Technology Organisation, as part of the Wiley - Australian Nuclear Science and Technology Organisation agreement via the Council of Australian University Librarians.en_AU
dc.identifier.articlenumber2301266en_AU
dc.identifier.citationDidier, C., Gilbert, E. P., Mata, J., & Peterson, V. K. (2023). Direct in situ determination of the surface area and structure of deposited metallic lithium within lithium metal batteries using ultra small and small angle neutron scattering. Advanced Energy Materials, 2301266. doi:10.1002/aenm.202301266en_AU
dc.identifier.issn1614-6840en_AU
dc.identifier.journaltitleAdvanced Energy Materialsen_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15200en_AU
dc.language.isoenen_AU
dc.publisherWileyen_AU
dc.relation.urihttps://doi.org/10.1002/aenm.202301266en_AU
dc.subjectLithiumen_AU
dc.subjectDendritesen_AU
dc.subjectSmall angle scatteringen_AU
dc.subjectNeutron diffractionen_AU
dc.subjectAlkali metalsen_AU
dc.subjectElectrodesen_AU
dc.titleDirect in situ determination of the surface area and structure of deposited metallic lithium within lithium metal batteries using ultra small and small angle neutron scatteringen_AU
dc.typeJournal Articleen_AU
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