Enhanced performance of fluorinated separator membranes for lithium ion batteries through surface micropatterning

Detalhes bibliográficos
Autor(a) principal: Gonçalves, Renato
Data de Publicação: 2019
Outros Autores: Marques-Almeida, Teresa, Miranda, Daniel, Silva, Maria Manuela, Cardoso, Vanessa, Costa, Carlos, Lanceros-Mendez, Senentxu
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/11110/1814
Resumo: The increasing demand on electronic and portable devices requires battery system with improved energy storage capacity. Thus, studies in all battery components are being carried out to increase their performance. One of those battery components in the separator membrane. The present work reports on porous poly(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE) separators with different patterned surfaces constituted by arrays of hexagons, lines, zig-zags and pillars microstructures and their influence on battery performance. Further, computer simulations allow to understand the influence of the patterned surface on battery response. It is observed that separator surface micropatterning increases battery performance. Thus, zig-zag surface micropatterning leads to a higher electrolyte current density (472.6 A.m−2), improved uptake value (262%), and larger ionic conductivity (3.00 mS cm−1) than the non-patterned separator. The increase of electrolyte/separator contact area (4.5 × 10−7 m), leading to new pathways for lithium-ion diffusion, results in a discharge capacity efficiency ∼804% (at 2C-rate) the one obtained for non-patterned separators. Thus, it is shown that micropatterning of separator membranes allow to significantly improve battery performance.
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spelling Enhanced performance of fluorinated separator membranes for lithium ion batteries through surface micropatterningPVDF-TrFEPatterned surfaceMembraneLithium-ion batterySeparatorPolymerThe increasing demand on electronic and portable devices requires battery system with improved energy storage capacity. Thus, studies in all battery components are being carried out to increase their performance. One of those battery components in the separator membrane. The present work reports on porous poly(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE) separators with different patterned surfaces constituted by arrays of hexagons, lines, zig-zags and pillars microstructures and their influence on battery performance. Further, computer simulations allow to understand the influence of the patterned surface on battery response. It is observed that separator surface micropatterning increases battery performance. Thus, zig-zag surface micropatterning leads to a higher electrolyte current density (472.6 A.m−2), improved uptake value (262%), and larger ionic conductivity (3.00 mS cm−1) than the non-patterned separator. The increase of electrolyte/separator contact area (4.5 × 10−7 m), leading to new pathways for lithium-ion diffusion, results in a discharge capacity efficiency ∼804% (at 2C-rate) the one obtained for non-patterned separators. Thus, it is shown that micropatterning of separator membranes allow to significantly improve battery performance.The authors thank the FCT (Fundaç~ao para a Ci^encia e Tecnologia) for financial support under the framework of Strategic Funding grants UID/ FIS/04650/2018, UID/EEA/04436/2019 and UID/QUI/0686/2016. Also, to the project POCI-01-0145-FEDER-028157, PTDC/FIS-MAC/ 28157/2017 funded by national funds through FCT and by the ERDF through the COMPETE2020 - Programa Operacional Competitividade e Internacionalizaç~ao (POCI). The authors also thank the FCT for financial support under grants SFRH/BPD/112547/2015 (C.M.C.) and SFRH/BD/ 141136/2018 (TMA), and FCT investigator contracts CEECIND/00833/ 2017. Financial support from the Basque Government under the ELKARTEK, HAZITEK and PIBA (PIBA-2018-06) programs is also acknowledged.Energy Storage Materials Journal2019-12-14T10:11:36Z2019-09-01T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articlehttp://hdl.handle.net/11110/1814oai:ciencipca.ipca.pt:11110/1814engGonçalves R, Almeida T, Miranda D, Silva M. M., Cardoso V, Costa C, Senentxu Lanceros-Mendez, Enhanced performance of fluorinated separator membranes for lithium ion batteries through surface micropatterning, Energy Storage Materials (2019)2405-8297DOI: 10.1016/j.ensm.2019.05.044http://hdl.handle.net/11110/1814metadata only accessinfo:eu-repo/semantics/openAccessGonçalves, RenatoMarques-Almeida, TeresaMiranda, DanielSilva, Maria ManuelaCardoso, VanessaCosta, CarlosLanceros-Mendez, Senentxureponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2022-09-05T12:53:09Zoai:ciencipca.ipca.pt:11110/1814Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T15:02:07.369571Repositório 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 Enhanced performance of fluorinated separator membranes for lithium ion batteries through surface micropatterning
title Enhanced performance of fluorinated separator membranes for lithium ion batteries through surface micropatterning
spellingShingle Enhanced performance of fluorinated separator membranes for lithium ion batteries through surface micropatterning
Gonçalves, Renato
PVDF-TrFE
Patterned surface
Membrane
Lithium-ion battery
Separator
Polymer
title_short Enhanced performance of fluorinated separator membranes for lithium ion batteries through surface micropatterning
title_full Enhanced performance of fluorinated separator membranes for lithium ion batteries through surface micropatterning
title_fullStr Enhanced performance of fluorinated separator membranes for lithium ion batteries through surface micropatterning
title_full_unstemmed Enhanced performance of fluorinated separator membranes for lithium ion batteries through surface micropatterning
title_sort Enhanced performance of fluorinated separator membranes for lithium ion batteries through surface micropatterning
author Gonçalves, Renato
author_facet Gonçalves, Renato
Marques-Almeida, Teresa
Miranda, Daniel
Silva, Maria Manuela
Cardoso, Vanessa
Costa, Carlos
Lanceros-Mendez, Senentxu
author_role author
author2 Marques-Almeida, Teresa
Miranda, Daniel
Silva, Maria Manuela
Cardoso, Vanessa
Costa, Carlos
Lanceros-Mendez, Senentxu
author2_role author
author
author
author
author
author
dc.contributor.author.fl_str_mv Gonçalves, Renato
Marques-Almeida, Teresa
Miranda, Daniel
Silva, Maria Manuela
Cardoso, Vanessa
Costa, Carlos
Lanceros-Mendez, Senentxu
dc.subject.por.fl_str_mv PVDF-TrFE
Patterned surface
Membrane
Lithium-ion battery
Separator
Polymer
topic PVDF-TrFE
Patterned surface
Membrane
Lithium-ion battery
Separator
Polymer
description The increasing demand on electronic and portable devices requires battery system with improved energy storage capacity. Thus, studies in all battery components are being carried out to increase their performance. One of those battery components in the separator membrane. The present work reports on porous poly(vinylidene fluoride-co-trifluoroethylene) (PVDF-TrFE) separators with different patterned surfaces constituted by arrays of hexagons, lines, zig-zags and pillars microstructures and their influence on battery performance. Further, computer simulations allow to understand the influence of the patterned surface on battery response. It is observed that separator surface micropatterning increases battery performance. Thus, zig-zag surface micropatterning leads to a higher electrolyte current density (472.6 A.m−2), improved uptake value (262%), and larger ionic conductivity (3.00 mS cm−1) than the non-patterned separator. The increase of electrolyte/separator contact area (4.5 × 10−7 m), leading to new pathways for lithium-ion diffusion, results in a discharge capacity efficiency ∼804% (at 2C-rate) the one obtained for non-patterned separators. Thus, it is shown that micropatterning of separator membranes allow to significantly improve battery performance.
publishDate 2019
dc.date.none.fl_str_mv 2019-12-14T10:11:36Z
2019-09-01T00:00:00Z
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/11110/1814
oai:ciencipca.ipca.pt:11110/1814
url http://hdl.handle.net/11110/1814
identifier_str_mv oai:ciencipca.ipca.pt:11110/1814
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv Gonçalves R, Almeida T, Miranda D, Silva M. M., Cardoso V, Costa C, Senentxu Lanceros-Mendez, Enhanced performance of fluorinated separator membranes for lithium ion batteries through surface micropatterning, Energy Storage Materials (2019)
2405-8297
DOI: 10.1016/j.ensm.2019.05.044
http://hdl.handle.net/11110/1814
dc.rights.driver.fl_str_mv metadata only access
info:eu-repo/semantics/openAccess
rights_invalid_str_mv metadata only access
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Energy Storage Materials Journal
publisher.none.fl_str_mv Energy Storage Materials Journal
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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