Mastering the synthesis of high Na-content, moisture-stable layered oxide cathode for Na-ion batteries

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dc.contributor.authorGrépin, Een_AU
dc.contributor.authorJacquet, Qen_AU
dc.contributor.authorMoiseev, IAen_AU
dc.contributor.authorIadecola, Aen_AU
dc.contributor.authorRousse, Gen_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorAbakumov, AMen_AU
dc.contributor.authorTarascon, JMen_AU
dc.contributor.authorMariyappan, Sen_AU
dc.date.accessioned2024-12-05T21:08:56Zen_AU
dc.date.available2024-12-05T21:08:56Zen_AU
dc.date.issued2024-09en_AU
dc.date.statistics2024-08-14en_AU
dc.description.abstractSodium layered oxides NaxMO2 (x ≤ 1 and M = transition metal) are of great interest for sodium-ion batteries due to their high energy density and cost-effectiveness. However, these materials, whether they are stoichiometric (Na/M ≈ 1 as in O3 NaMO2) or not (Na/M ≈ 0.7 as in P3/P2 NaxMO2), have certain disadvantages, namely sensitivity to humidity or inadequate capacity, respectively. Herein, we propose an intermediate composition Na0.85Ni0.38Zn0.04Mn0.48Ti0.1O2 that we succeed to stabilize in either O3 or a nanoscale mixture of O3–P3 or O3–P2 phases as proven by X-ray diffraction and transmission electron microscopy, through complex synthesis approaches including quenching, slow cooling and annealing in different atmospheres (Ar, air, O2 etc). We rationalize the stabilization of different phases and microstructure as a function of synthesis conditions and show how it influences the electrochemical performance. Through this study we identified a single phase O3 Na0.85Ni0.38Zn0.04Mn0.48Ti0.1O2 synthesized at 1000 °C in air, which exhibits a high capacity of ∼170 mAh/g and good moisture stability. Furthermore, thanks to the synthesis-structure- electrochemical performance relationship identified here, we believe that this study will provide a reliable basis for optimizing the synthesis for best performing sodium layered oxides for commercialization. © 2024 Elsevier B.V.en_AU
dc.description.sponsorshipThis work benefited from state aid managed by the National Research Agency (ANR) under France 2030 bearing the reference ANR-22-PEBA-0003 (PEPR- HIPOHYBAT) and through the STORE-EX Labexproject ANR-10-LABX-76-01. E.G acknowledges Horizon 2020 research and innovation program under grant agreement No 875629- NAIMA for the phd scholarship. The authors thank Erik Elkaïm at CRYSTAL beamline for the synchrotron XRD measurements. A.I. thanks the ROCK beamline for the XAS measurements (EQUIPEX reference: ANR-10-EQPX-45). I. A. M. and A.M.A. are grateful to the Russian Science Foundation (grant No. 23-73-30003) for financial support. The authors thank M. Burghammer and A. Medjahed from ID13 for setting up the beamline at ESRF. Beamtime at the ESRF was granted within the Battery Pilot Hub MA4929 “Multi-scale Multitechniques investigations of Li-ion batteries: towards a European Battery Hub”.en_AU
dc.identifier.articlenumber234962en_AU
dc.identifier.citationGrépin, E., Jacquet, Q., Moiseev, I. A., Iadecola, A., Rousse, G., Avdeev, M., Abakumov, A. M., Tarascon, J.-M., & Mariyappan, S. (2024). Mastering the synthesis of high Na-content, moisture-stable layered oxide cathode for Na-ion batteries. Journal of Power Sources, 613, 234962. doi.:10.1016/j.jpowsour.2024.234962en_AU
dc.identifier.issn0378-7753en_AU
dc.identifier.journaltitleJournal of Power Sourcesen_AU
dc.identifier.urihttps://doi.org/10.1016/j.jpowsour.2024.234962en_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15778en_AU
dc.identifier.volume613en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherElsevieren_AU
dc.subjectSynthesisen_AU
dc.subjectOxidesen_AU
dc.subjectCathodesen_AU
dc.subjectSodiumen_AU
dc.subjectMolybdenumen_AU
dc.subjectHumidityen_AU
dc.subjectTitaniumen_AU
dc.subjectZincen_AU
dc.subjectNickelen_AU
dc.subjectDiffractionen_AU
dc.subjectTransmission electron microscopyen_AU
dc.subjectSodium ionsen_AU
dc.titleMastering the synthesis of high Na-content, moisture-stable layered oxide cathode for Na-ion batteriesen_AU
dc.typeJournal Articleen_AU
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