| Autor: |
Israel Temprano, Tao Liu, Enrico Petrucco, James H. J. Ellison, Gunwoo Kim, Erlendur Jónsson, Clare P. Grey |
| Přispěvatelé: |
Grey, Clare [0000-0001-5572-192X], Apollo - University of Cambridge Repository |
| Rok vydání: |
2020 |
| Předmět: |
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| DOI: |
10.17863/cam.58429 |
| Popis: |
The development of moisture-tolerant, LiOH-based non-aqueous Li-O2 batteries is a promising route to bypassing the inherent limitations caused by the instability of their typical discharge products, LiO2 and Li2O2. The use of the I-/I3- redox couple to mediate the LiOH-based oxygen reduction and oxidation reactions has proven challenging to develop due to the multiple reaction paths induced by the oxidation of I- on cell charging. In this work we demonstrate a reversible LiOH-based Li-O2 battery cycling through a 4 e-/O2 process with low charging overpotential (below 3.5 V vs Li/Li+) by introducing an ionic liquid to a glyme-based electrolyte containing LiI and water. The addition to the ionic liquid increases the oxidizing power of I3-, shifting the charging mechanism from IO-/IO3- formation to O2 evolution |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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