Constructing “Li-rich Ni-rich” oxide cathodes for high-energy-density Li-ion batteries

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dc.contributor.authorLi, Ben_AU
dc.contributor.authorRousse, Gen_AU
dc.contributor.authorZhang, Len_AU
dc.contributor.authorAvdeev, Men_AU
dc.contributor.authorDeschamps, Men_AU
dc.contributor.authorAbakumov, AMen_AU
dc.contributor.authorTarascon, JMen_AU
dc.date.accessioned2024-12-05T22:17:38Zen_AU
dc.date.available2024-12-05T22:17:38Zen_AU
dc.date.issued2023-01-26en_AU
dc.date.statistics2024-03-07en_AU
dc.description.abstractThe current exploration of high-energy-density cathode materials for Li-ion batteries is mainly concentrated on either so-called “Li-rich” or “Ni-rich” oxides. However, both are suffering from formidable practical challenges. Here, we combine these two concepts to obtain “Li-rich Ni-rich” oxides in pursuit of more practical high-energy-density cathodes. As a proof of concept, we synthesized an array of Li1+yNi(3−5y)/3Mo2y/3O2 oxides, whose structures were identified to be the coexistence of LiNiO2-rich and Li4MoO5-rich domains with the aid of XRD, TEM, and NMR techniques. Such an intergrowth structure of 5–20 nm size enables excellent mechanical and structural reversibility for the layered rock-salt LiNiO2-rich domain upon cycling thanks to the robust cubic rock-salt Li4MoO5-rich domain enabling an “epitaxial stabilization” effect. As a result, we achieved high capacities (>220 mA h g−1) with Ni contents as low as 80%; the Li1.09Ni0.85Mo0.06O2 member (y = 0.09) shows much improved cycling performances (91% capacity retention for 100 cycles at C/10) compared with pure LiNiO2. This work validates the feasibility of constructing Li-rich Ni-rich compounds in the form of intergrowing domains and hence unlocks vast possibilities for future cathode design. © The Royal Society of Chemistryen_AU
dc.description.sponsorshipThis research used resources from the Advanced Photon Source, a US Department of Energy (DOE) Office of Science User Facility, operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. We are grateful to Tuncay Koç for his kind help in performing SEM and EDX measurements, to Valentin Meunier and Ivette Aguilar for their kind help in measuring ICP, to Antonella Iadecola for her help in collecting the XAS spectra, and to Sathiya Mariyappan for her kind help in performing the DSC measurements. A. M. A. is grateful to the Russian Science Foundation for financial support (grant 20-13-00233). Access to TEM facilities was granted by the Advance Imaging Core Facility of Skoltech. J.-M. T. and B. L. acknowledge funding from the European Research Council (ERC) (FP/2014)/ERC Grant-Project 670116-ARPEMA.en_AU
dc.identifier.citationLi, B., Rousse, G., Zhang, L., Avdeev, M., Deschamps, M., Abakumov, A. M., & Tarascon, J.-M. (2023). Constructing “Li-rich Ni-rich” oxide cathodes for high-energy-density Li-ion batteries. Energy & Environmental Science, 16(3), 1210-1222. doi:10.1039/D2EE03969Aen_AU
dc.identifier.issn1754-5692en_AU
dc.identifier.issn1754-5706en_AU
dc.identifier.issue3en_AU
dc.identifier.journaltitleEnergy & Environmental Scienceen_AU
dc.identifier.pagination1210-1222en_AU
dc.identifier.urihttp://dx.doi.org/10.1039/d2ee03969aen_AU
dc.identifier.urihttps://apo.ansto.gov.au/handle/10238/15786en_AU
dc.identifier.volume16en_AU
dc.languageEnglishen_AU
dc.language.isoenen_AU
dc.publisherRoyal Society of Chemistryen_AU
dc.subjectElectric batteriesen_AU
dc.subjectLithiumen_AU
dc.subjectCathodesen_AU
dc.subjectNickelen_AU
dc.subjectConstructionen_AU
dc.subjectHigh energy physicsen_AU
dc.subjectOxidesen_AU
dc.titleConstructing “Li-rich Ni-rich” oxide cathodes for high-energy-density Li-ion batteriesen_AU
dc.typeJournal Articleen_AU
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