Electrochemical strain microscopy time spectroscopy: Model and experiment on LiMn2O4
Autor(a) principal: | |
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Data de Publicação: | 2015 |
Outros Autores: | , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/20794 |
Resumo: | Electrochemical Strain Microscopy (ESM) can provide useful information on ionic diffusion in solids at the local scale. In this work, a finite element model of ESM measurements was developed and applied to commercial lithium manganese (III,IV) oxide (LiMn2O4) particles. ESM time spectroscopy was used, where a direct current (DC) voltage pulse locally disturbs the spatial distribution of mobile ions. After the pulse is off, the ions return to equilibrium at a rate which depends on the Li diffusivity in the material. At each stage, Li diffusivity is monitored by measuring the ESM response to a small alternative current (AC) voltage simultaneously applied to the tip. The model separates two different mechanisms, one linked to the response to DC bias and another one related to the AC excitation. It is argued that the second one is not diffusion-driven hut is rather a contribution of the sum of several mechanisms with at least one depending on the lithium ion concentration explaining the relaxation process. With proper fitting of this decay, diffusion coefficients of lithium hosts could be extracted. Additionally, the effect of phase transition in LiMn2O4 is taken into account, explaining some experimental observations. (C) 2015 AIP Publishing LLC. |
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Electrochemical strain microscopy time spectroscopy: Model and experiment on LiMn2O4LITHIUM-ION BATTERIESELECTRICAL-TRANSPORT PROPERTIESNANOMETER RESOLUTIONDIFFUSIONNANOSCALESPINELELECTRODESCONDUCTIONCATHODEElectrochemical Strain Microscopy (ESM) can provide useful information on ionic diffusion in solids at the local scale. In this work, a finite element model of ESM measurements was developed and applied to commercial lithium manganese (III,IV) oxide (LiMn2O4) particles. ESM time spectroscopy was used, where a direct current (DC) voltage pulse locally disturbs the spatial distribution of mobile ions. After the pulse is off, the ions return to equilibrium at a rate which depends on the Li diffusivity in the material. At each stage, Li diffusivity is monitored by measuring the ESM response to a small alternative current (AC) voltage simultaneously applied to the tip. The model separates two different mechanisms, one linked to the response to DC bias and another one related to the AC excitation. It is argued that the second one is not diffusion-driven hut is rather a contribution of the sum of several mechanisms with at least one depending on the lithium ion concentration explaining the relaxation process. With proper fitting of this decay, diffusion coefficients of lithium hosts could be extracted. Additionally, the effect of phase transition in LiMn2O4 is taken into account, explaining some experimental observations. (C) 2015 AIP Publishing LLC.AMER INST PHYSICS2017-12-07T19:59:39Z2015-01-01T00:00:00Z2015info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/20794eng0021-897910.1063/1.4927747Amanieu, Hugues-YanisThai, Huy N. M.Luchkin, Sergey Yu.Rosato, DanieleLupascu, Doru C.Keip, Marc-AndreSchroeder, JoergKholkin, Andrei L.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:40:56Zoai:ria.ua.pt:10773/20794Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:55:26.869572Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
Electrochemical strain microscopy time spectroscopy: Model and experiment on LiMn2O4 |
title |
Electrochemical strain microscopy time spectroscopy: Model and experiment on LiMn2O4 |
spellingShingle |
Electrochemical strain microscopy time spectroscopy: Model and experiment on LiMn2O4 Amanieu, Hugues-Yanis LITHIUM-ION BATTERIES ELECTRICAL-TRANSPORT PROPERTIES NANOMETER RESOLUTION DIFFUSION NANOSCALE SPINEL ELECTRODES CONDUCTION CATHODE |
title_short |
Electrochemical strain microscopy time spectroscopy: Model and experiment on LiMn2O4 |
title_full |
Electrochemical strain microscopy time spectroscopy: Model and experiment on LiMn2O4 |
title_fullStr |
Electrochemical strain microscopy time spectroscopy: Model and experiment on LiMn2O4 |
title_full_unstemmed |
Electrochemical strain microscopy time spectroscopy: Model and experiment on LiMn2O4 |
title_sort |
Electrochemical strain microscopy time spectroscopy: Model and experiment on LiMn2O4 |
author |
Amanieu, Hugues-Yanis |
author_facet |
Amanieu, Hugues-Yanis Thai, Huy N. M. Luchkin, Sergey Yu. Rosato, Daniele Lupascu, Doru C. Keip, Marc-Andre Schroeder, Joerg Kholkin, Andrei L. |
author_role |
author |
author2 |
Thai, Huy N. M. Luchkin, Sergey Yu. Rosato, Daniele Lupascu, Doru C. Keip, Marc-Andre Schroeder, Joerg Kholkin, Andrei L. |
author2_role |
author author author author author author author |
dc.contributor.author.fl_str_mv |
Amanieu, Hugues-Yanis Thai, Huy N. M. Luchkin, Sergey Yu. Rosato, Daniele Lupascu, Doru C. Keip, Marc-Andre Schroeder, Joerg Kholkin, Andrei L. |
dc.subject.por.fl_str_mv |
LITHIUM-ION BATTERIES ELECTRICAL-TRANSPORT PROPERTIES NANOMETER RESOLUTION DIFFUSION NANOSCALE SPINEL ELECTRODES CONDUCTION CATHODE |
topic |
LITHIUM-ION BATTERIES ELECTRICAL-TRANSPORT PROPERTIES NANOMETER RESOLUTION DIFFUSION NANOSCALE SPINEL ELECTRODES CONDUCTION CATHODE |
description |
Electrochemical Strain Microscopy (ESM) can provide useful information on ionic diffusion in solids at the local scale. In this work, a finite element model of ESM measurements was developed and applied to commercial lithium manganese (III,IV) oxide (LiMn2O4) particles. ESM time spectroscopy was used, where a direct current (DC) voltage pulse locally disturbs the spatial distribution of mobile ions. After the pulse is off, the ions return to equilibrium at a rate which depends on the Li diffusivity in the material. At each stage, Li diffusivity is monitored by measuring the ESM response to a small alternative current (AC) voltage simultaneously applied to the tip. The model separates two different mechanisms, one linked to the response to DC bias and another one related to the AC excitation. It is argued that the second one is not diffusion-driven hut is rather a contribution of the sum of several mechanisms with at least one depending on the lithium ion concentration explaining the relaxation process. With proper fitting of this decay, diffusion coefficients of lithium hosts could be extracted. Additionally, the effect of phase transition in LiMn2O4 is taken into account, explaining some experimental observations. (C) 2015 AIP Publishing LLC. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-01-01T00:00:00Z 2015 2017-12-07T19:59:39Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/20794 |
url |
http://hdl.handle.net/10773/20794 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
0021-8979 10.1063/1.4927747 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
AMER INST PHYSICS |
publisher.none.fl_str_mv |
AMER INST PHYSICS |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
instname_str |
Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
instacron_str |
RCAAP |
institution |
RCAAP |
reponame_str |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
collection |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
repository.name.fl_str_mv |
Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1799137607754448896 |