dc.contributor.author | Olmedo Martínez, Jorge L. | |
dc.contributor.author | Meabe Iturbe, Leire | |
dc.contributor.author | Basterrechea Gorostiza, Andere | |
dc.contributor.author | Mecerreyes Molero, David | |
dc.contributor.author | Müller Sánchez, Alejandro Jesús | |
dc.date.accessioned | 2019-05-15T12:35:35Z | |
dc.date.available | 2019-05-15T12:35:35Z | |
dc.date.issued | 2019-03-09 | |
dc.identifier.citation | Polymers 11(3) : (2019) // Article ID 452 | es_ES |
dc.identifier.issn | 2073-4360 | |
dc.identifier.uri | http://hdl.handle.net/10810/32813 | |
dc.description.abstract | Poly(ethylene oxide) (PEO) is the most widely used polymer in the field of solid polymer electrolytes for batteries. It is well known that the crystallinity of polymer electrolytes strongly affects the ionic conductivity and its electrochemical performance. Nowadays, alternatives to PEO are actively researched in the battery community, showing higher ionic conductivity, electrochemical window, or working temperature range. In this work, we investigated polymer electrolytes based on aliphatic polyethers with a number of methylene units ranging from 2 to 12. Thus, the effect of the lithium bis(trifluoromethanesulfone) imide (LiTFSI) concentration on the crystallization behavior of the new aliphatic polyethers and their ionic conductivity was investigated. In all the cases, the degree of crystallinity and the overall crystallization rate of the polymers decreased drastically with 30 wt % LiTFSI addition. The salt acted as a low molecular diluent to the polyethers according to the expectation of the Flory-Huggins theory for polymer-diluent mixtures. By fitting our results to this theory, the value of the interaction energy density (B) between the polyether and the LiTFSI was calculated, and we show that the value of B must be small to obtain high ionic conductivity electrolytes. | es_ES |
dc.description.sponsorship | We wish to thank the National Council of Science and Technology (CONACYT), Mexico for the grant awarded to Jorge L. Olmedo Martinez (471837). We are grateful to the financial support of the European Commission through the project SUSPOL-EJD 642671 and European Research Council by Starting Grant Innovative Polymers for Energy Storage (iPes) 306250. Alejandro J. Muller acknowledges the support of MINECO through grant MAT2017-83014-C2-1-P. Leire Meabe thanks Spanish Ministry of Education, Culture and Sport for the predoctoral FPU. | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | MDPI | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/MAT2017-83014-C2-1-P | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/642671 | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/FP7/306250 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by/3.0/es/ | * |
dc.subject | polyethers | es_ES |
dc.subject | crystallization | es_ES |
dc.subject | ionic conductivity | es_ES |
dc.subject | Flory-Huggins theory | es_ES |
dc.subject | solid polymer electrolytes | es_ES |
dc.subject | poly(oxyethylene) electrolytes | es_ES |
dc.subject | peo | es_ES |
dc.subject | behavior | es_ES |
dc.subject | state | es_ES |
dc.title | Effect of Chemical Structure and Salt Concentration on the Crystallization and Ionic Conductivity of Aliphatic Polyethers | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0). | es_ES |
dc.rights.holder | Atribución 3.0 España | * |
dc.relation.publisherversion | https://www.mdpi.com/2073-4360/11/3/452 | es_ES |
dc.identifier.doi | 10.3390/polym11030452 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Ciencia y tecnología de polímeros | es_ES |
dc.departamentoeu | Polimeroen zientzia eta teknologia | es_ES |