dc.contributor.author | Ouhib, Farid | |
dc.contributor.author | Meabe Iturbe, Leire | |
dc.contributor.author | Mahmoud, Abdelfattah | |
dc.contributor.author | Eshraghi, Nicolas | |
dc.contributor.author | Grignard, Bruno | |
dc.contributor.author | Thomassin, Jean-Michel | |
dc.contributor.author | Aqil, Abdelhafid | |
dc.contributor.author | Boschini, Frederic | |
dc.contributor.author | Jérôme, Christine | |
dc.contributor.author | Mecerreyes Molero, David | |
dc.contributor.author | Detrembleur, Christophe | |
dc.date.accessioned | 2019-10-11T13:54:17Z | |
dc.date.available | 2019-10-11T13:54:17Z | |
dc.date.issued | 2019-03-19 | |
dc.identifier.citation | Journal of Materials Chemistry A 7(16) : 9844-9853 (2019) | es_ES |
dc.identifier.issn | 2050-7488 | |
dc.identifier.uri | http://hdl.handle.net/10810/35684 | |
dc.description.abstract | In the last few years, polycarbonates have been identified as alternatives to poly(ethylene oxide) as polymer electrolytes for lithium battery applications. In this work, we show the design of CO2-sourced
polycarbonates for their use in room temperature operating lithium batteries. Novel functional polycarbonates with alternating oxo-carbonate moieties and polyethylene oxide segments are synthesized by the facile room temperature (rt) organocatalyzed polyaddition of CO2-sourced bis(aalkylidene carbonate)s (bis-aCCs) with polyethylene oxide diols. The effect of the molar mass of olyethylene oxide on the ionic conductivity and thermal properties of poly(oxo-carbonate)s is investigated. The best candidate shows a low glass transition temperature of 44 C and a high ionic conductivity of 3.75 10 5 S cm 1 at rt when loaded with 30 wt% bis(trifluoromethanesulfonyl)imide salt (LiTFSI) without any solvent. An all-solid semi-interpenetrated network polymer electrolyte (SIN-SPE) is then fabricated by UV cross-linking of a mixture containing specifically designed poly(oxo-carbonate) bearing methacrylate pendants, diethylene glycol diacrylate and the previously described poly(oxocarbonate) containing LiTFSI. The resulting self-standing membrane exhibits a high oxidation stability up to 5 V (vs. Li/Li+), an ionic conductivity of 1.1 10 5 S cm 1 at rt (10 4 S cm 1 at 60 C) and promising mechanical properties. Assembled in a half cell configuration with LiFePO4 (LFP) as the cathode and lithium as the anode, the all-solid cell delivers a discharge capacity of 161 mA h g 1 at 0.1C and 60 C, which is very close to the theoretical capacity of LFP (170 mA h g 1). Also, a stable reversible cycling capacity over 400 cycles with a high coulombic efficiency of 99% is noted at 1C. Similar results are obtained at rt provided that 10 wt% tetraglyme as a plasticizer was added to the SIN-SPE. | es_ES |
dc.description.sponsorship | -Fonds National pour la Recherche Scientifique” (F.R.S.-FNRS)
-Fonds Wetenschappelijk Onderzoek– Vlaanderen (FWO)
-EOS project no. 019618F (ID EOS: 30902231).
- CESAM Research Unit.
- European Research Council by Starting Grant Innovative Polymers for Energy Storage (iPes) 306250
-Basque Government through ETORTEK Energigune 2013 and IT 999-16.
- Spanish Ministry of Education, Culture and Sport for the predoctoral FPU fellowship received | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Royal Society of Chemistry | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/FP7/306250 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.title | CO2-sourced polycarbonates as solid electrolytes for room temperature operating lithium batteries | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2019 The Royal Society of Chemistry | es_ES |
dc.relation.publisherversion | https://pubs.rsc.org/en/content/articlelanding/2019/ta/c9ta01564g#!divAbstract | es_ES |
dc.identifier.doi | 10.1039/c9ta01564g | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Química aplicada | es_ES |
dc.departamentoeu | Kimika aplikatua | es_ES |