Single- Versus Dual-Ion UV-Cross-Linked Gel Polymer Electrolytes for Li–O2 Batteries
| Autor: | Gregorio Guzmán-González, Marta Alvarez Tirado, Luca Porcarelli, David Mecerreyes, Laurent Castro |
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| Přispěvatelé: | European Commission |
| Rok vydání: | 2021 |
| Předmět: |
Battery (electricity)
Materials science Polymer electrolytes Energy Engineering and Power Technology 02 engineering and technology 010402 general chemistry 7. Clean energy 01 natural sciences Ion dynamic discharge Materials Chemistry Electrochemistry Fast ion conductor Chemical Engineering (miscellaneous) Li-O2 batteries Electrical and Electronic Engineering solid electrolytes chemistry.chemical_classification single ion Single ion business.industry Fossil fuel Polymer 021001 nanoscience & nanotechnology gel polymer electrolytes 0104 chemical sciences chemistry Chemical engineering Energy density 0210 nano-technology business |
| Zdroj: | Addi: Archivo Digital para la Docencia y la Investigación Universidad del País Vasco Addi. Archivo Digital para la Docencia y la Investigación instname Universidad de Cantabria (UC) |
| ISSN: | 2574-0962 |
| DOI: | 10.1021/acsaem.0c02255 |
| Popis: | 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 |
| Databáze: | OpenAIRE |
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