dc.contributor.author | Álvarez Tirado, Marta | |
dc.contributor.author | Castro, Laurent | |
dc.contributor.author | Guzmán González, Gregorio | |
dc.contributor.author | Porcarelli, Luca | |
dc.contributor.author | Mecerreyes Molero, David | |
dc.date.accessioned | 2021-01-27T18:23:41Z | |
dc.date.available | 2021-01-27T18:23:41Z | |
dc.date.issued | 2021-01-04 | |
dc.identifier.citation | ACS Applied Energy Materials 4(1) : 295–302 (2021) | es_ES |
dc.identifier.issn | 2574-0962 | |
dc.identifier.uri | http://hdl.handle.net/10810/49907 | |
dc.description.abstract | Lithium-O2 batteries represent one of the most appealing candidates for battery electric vehicles (BEV) due to its remarkable theoretical high energy density, similar to fossil fuels. Solid polymer electrolytes represent a plausible solution to tackle some of the challenges associated to conventional liquid-based Li-O2 batteries, including safety concerns. Herein, cross-linked robust gel polymer electrolytes (GPE) based on poly(ethylene glycol) dimethacrylate (PEGDM) and tetraethylene glycol dimethyl ether (TEGDME) as plasticizer are prepared by rapid UV-photopolymerization. Both types of robust GPEs presented high ionic conductivity at room temperature (1.6·10−4 S·cm−1 and 1.4·10−3 S·cm−1 for single ion or dual ion, respectively). Both types of GPEs, single ion and dual ion lithium conductors, have been compared for the first time on Li-O2 cells. First, their performance was investigated in symmetrical Li|Li cells. In this case, the dual-ion GPE showed an outstanding behavior where the overpotential was <0.2 V vs Li0/Li+ for more than 40 hours at a current density as highs as ±1 mA·cm−2. On the other hand, in full Li-O2 configuration, the single ion GPE cell showed superior discharge capacity, up to 2.38 mAh·cm−2. A dynamic discharge characterization technique is proposed here as a method for evaluating the polarization effect in electrolytes during discharge in an easy, quantifiable and reproducible manner. | es_ES |
dc.description.sponsorship | This work was supported by the European Commission´s funded Marie Skłodowska-Curie project POLYTE-EID (Project No. 765828). L.P. has received funding from the European Commission Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie Grant Agreement No. 797295 (eJUMP). G.G-G. is grateful to “Secretaría de Estado de Ciencia, Tecnología e Innovación” from Ciudad de Mexico for the current postdoctoral fellowship (SECTEI/133/2019). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Americal Chemical Society | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/765828 | es_ES |
dc.relation | info:eu-repo/grantAgreement/EC/H2020/797295 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.subject | solid electrolytes | es_ES |
dc.subject | Li-O2 batteries | es_ES |
dc.subject | gel polymer electrolytes | es_ES |
dc.subject | single ion | es_ES |
dc.subject | dynamic discharge | es_ES |
dc.title | Single- Versus Dual-Ion UV-Cross-Linked Gel Polymer Electrolytes for Li–O2 Batteries | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | © 2021 American Chemical Society | es_ES |
dc.relation.publisherversion | https://doi.org/10.1021/acsaem.0c02255 | es_ES |
dc.identifier.doi | 10.1021/acsaem.0c02255 | |
dc.contributor.funder | European Commission | |
dc.departamentoes | Polímeros y Materiales Avanzados: Física, Química y Tecnología | es_ES |
dc.departamentoeu | Polimero eta Material Aurreratuak: Fisika, Kimika eta Teknologia | es_ES |