Visualization of O-O peroxo-like dimers in high-capacity layered oxides for Li-ion batteries
Centre National de la Recherche Scientifique · Collège de France · +12 more institutions
Abstract
Lithium-ion (Li-ion) batteries that rely on cationic redox reactions are the primary energy source for portable electronics. One pathway toward greater energy density is through the use of Li-rich layered oxides. The capacity of this class of materials (>270 milliampere hours per gram) has been shown to be nested in anionic redox reactions, which are thought to form peroxo-like species. However, the oxygen-oxygen (O-O) bonding pattern has not been observed in previous studies, nor has there been a satisfactory explanation for the irreversible changes that occur during first delithiation. By using Li2IrO3 as a model compound, we visualize the O-O dimers via transmission electron microscopy and neutron…
Citation impact
- FWCI
- 33.73
- Percentile
- 100%
- References
- 39
Authors
12- EMEric McCalla
Centre National de la Recherche Scientifique, Collège de France, Réseau sur le Stockage Electrochimique de l'énergie, Alistore, Chimie du Solide et Energie, National Institute of Chemistry
- AMArtem M. Abakumov
Skolkovo Institute of Science and Technology, University of Antwerp
- MSMatthieu Saubanère
Centre National de la Recherche Scientifique, Université de Montpellier, Réseau sur le Stockage Electrochimique de l'énergie, Alistore, Institut Charles Gerhardt Montpellier
- DFDominique Foix
Centre National de la Recherche Scientifique, Université de Pau et des Pays de l'Adour, Réseau sur le Stockage Electrochimique de l'énergie, Alistore
- EJErik J. Berg
Paul Scherrer Institute
Topics & keywords
- Peering
- Cathode
- Lithium (medication)
- Materials science
- Redox
- Ion
- Nanotechnology
- Energy storage
- Affordable and clean energy
Funding
- UDU.S. Department of EnergyAwards: AC02-06CH11357, DE-AC02, 06CH11357, DE-AC02-06CH11357, DE-AC02-
- JAJavna Agencija za Raziskovalno Dejavnost RSAward: P2-0148
- GÉGrand Équipement National De Calcul Intensif
- OOOffice of ScienceAwards: DE-AC02-06CH11357, DE-AC02, 06CH11357, AC02-06CH11357
- BEBasic Energy SciencesAwards: DE-AC02, AC02-06CH11357, 06CH11357
- ANArgonne National LaboratoryAwards: DE-AC02, 06CH11357, AC02-06CH11357
- HEH2020 European Research CouncilAwards: Grant-Project670116-ARPEMA, FP/2014-2020