Abstract
Delivering inherently stable lithium-ion batteries is a key challenge. Electrochemical lithium insertion and extraction often severely alters the electrode crystal chemistry, and this contributes to degradation with electrochemical cycling. Moreover, electrodes do not act in isolation, and this can be difficult to manage, especially in all-solid-state batteries. Therefore, discovering materials that can reversibly insert and extract large quantities of the charge carrier (Li+), that is, high capacity, with inherent stability during electrochemical cycles is necessary. Here lithium-excess vanadium oxides with a disordered rocksalt structure are examined as high-capacity and long-life positive electrode materials. Nanosized Li8/7Ti2/7V4/7O2 in optimized liquid electrolytes deliver a large reversible capacity of over 300 mAh g−1 with two-electron V3+/V5+ cationic redox, reaching 750 Wh kg−1 versus metallic lithium. Critically, highly reversible Li storage and no capacity fading for 400 cycles were observed in all-solid-state batteries with a sulfide-based solid electrolyte. Operando synchrotron X-ray diffraction combined with high-precision dilatometry reveals excellent reversibility and a near dimensionally invariable character during electrochemical cycling, which is associated with reversible vanadium migration on lithiation and delithiation. This work demonstrates an example of an electrode/electrolyte couple that produces high-capacity and long-life batteries enabled by multi-electron transition metal redox with a structure that is near invariant during cycling.
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References
Whittingham, M. S. Ultimate limits to intercalation reactions for lithium batteries. Chem. Rev. 114, 11414–11443 (2014).
Yabuuchi, N. Material design concept of lithium-excess electrode materials with rocksalt-related structures for rechargeable non-aqueous batteries. Chem. Rec. 19, 690–707 (2019).
Oishi, M. et al. Direct observation of reversible oxygen anion redox reaction in Li-rich manganese oxide, Li2MnO3, studied by soft X-ray absorption spectroscopy. J. Mater. Chem. A 4, 9293–9302 (2016).
Fukuma, R. et al. Unexpectedly large contribution of oxygen to charge compensation triggered by structural disordering: detailed experimental and theoretical study on a Li3NbO4–NiO binary system. ACS Cent. Sci. 8, 775–794 (2022).
Sudayama, T. et al. Multiorbital bond formation for stable oxygen-redox reaction in battery electrodes. Energy Environ. Sci. 13, 1492–1500 (2020).
Kobayashi, Y. et al. Activation and stabilization mechanisms of anionic redox for Li storage applications: Joint experimental and theoretical study on Li2TiO3–LiMnO2 binary system. Mater. Today 37, 43–55 (2020).
Hu, E. et al. Evolution of redox couples in Li- and Mn-rich cathode materials and mitigation of voltage fade by reducing oxygen release. Nat. Energy 3, 690–698 (2018).
Nakajima, M. & Yabuuchi, N. Lithium-excess cation-disordered rocksalt-type oxide with nanoscale phase segregation: Li1.25Nb0.25V0.5O2. Chem. Mater. 29, 6927–6935 (2017).
Yabuuchi, N. Rational material design of Li-excess metal oxides with disordered rock salt structure. Curr. Opin. Electrochem. 34, 100978 (2022).
Hoshino, S. et al. Reversible three-electron redox reaction of Mo3+/Mo6+ for rechargeable lithium batteries. ACS Energy Lett. 2, 733–738 (2017).
Huggins, R. A. Do you really want an unsafe battery? J. Electrochem Soc. 160, A3001–A3005 (2013).
Yan, P. et al. Intragranular cracking as a critical barrier for high-voltage usage of layer-structured cathode for lithium-ion batteries. Nat. Commun. 8, 14101 (2017).
Kobayashi, S., Kuwabara, A., Fisher, C. A. J., Ukyo, Y. & Ikuhara, Y. Microscopic mechanism of biphasic interface relaxation in lithium iron phosphate after delithiation. Nat. Commun. 9, 2863 (2018).
Li, H. et al. Is cobalt needed in Ni-rich positive electrode materials for lithium ion batteries? J. Electrochem Soc. 166, A429–A439 (2019).
Park, K.-J. et al. Degradation mechanism of Ni-enriched NCA cathode for lithium batteries: are microcracks really critical? ACS Energy Lett. 4, 1394–1400 (2019).
Hakari, T. et al. Solid electrolyte with oxidation tolerance provides a high-capacity Li2S-based positive electrode for all-solid-state Li/S batteries. Adv. Funct. Mater. 32, 2106174 (2022).
Scharner, S., Weppner, W. & Schmid‐Beurmann, P. Evidence of two-phase formation upon lithium insertion into the Li1.33Ti1.67O4 spinel. J. Electrochem Soc. 146, 857–861 (2019).
Zhang, L., Takada, K., Ohta, N., Osada, M. & Sasaki, T. Synthesis and electrochemistry of new layered (1−x)LiVO2·xLi2TiO3 (0≤x≤0.6) electrode materials. J. Power Sources 174, 1007–1011 (2007).
House, R. A. et al. Lithium manganese oxyfluoride as a new cathode material exhibiting oxygen redox. Energy Environ. Sci. 11, 926–932 (2018).
Baur, C., Chable, J., Klein, F., Chakravadhanula, V. S. K. & Fichtner, M. Reversible delithiation of disordered rock salt LiVO2. ChemElectroChem 5, 1484–1490 (2018).
Wang, J. et al. Superconcentrated electrolytes for a high-voltage lithium-ion battery. Nat. Commun. 7, 12032 (2016).
Tachikawa, N. et al. Reversibility of electrochemical reactions of sulfur supported on inverse opal carbon in glyme–Li salt molten complex electrolytes. Chem. Commun. 47, 8157–8159 (2011).
Ji, H. et al. Ultrahigh power and energy density in partially ordered lithium-ion cathode materials. Nat. Energy 5, 213–221 (2020).
Hiroi, S., Ohara, K. & Sakata, O. Structural characterization of the delithiated noncrystalline phase in a Li-rich Li2VO2F cathode material. Chem. Mater. 33, 5943–5950 (2021).
Baur, C., Lǎcǎtuşu, M.-E., Fichtner, M. & Johnsen, R. E. Insights into structural transformations in the local structure of Li2VO2F using operando X-ray diffraction and total scattering: amorphization and recrystallization. ACS Appl. Mater. Interfaces 12, 27010–27016 (2020).
Yabuuchi, N. et al. Origin of stabilization and destabilization in solid-state redox reaction of oxide ions for rechargeable lithium batteries. Nat. Commun. 7, 13814 (2016).
Lee, H. et al. Impact of local separation on the structural and electrochemical behaviors in Li2MoO3·LiCrO2 disordered rock-salt cathode material. Adv. Energy Mater. 11, 2002958 (2021).
Liu, J., Maynard-Casely, H. E., Brand, H. E. A. & Sharma, N. Sc1.5Al0.5W3O12 exhibits zero thermal expansion between 4 and 1400 K. Chem. Mater. 33, 3823–3831 (2021).
Zhao, X. et al. Design principles for zero-strain Li-ion cathodes. Joule 6, 1654–1671 (2022).
Deiseroth, H.-J. et al. Li6PS5X: a class of crystalline Li-rich solids with an unusually high Li+ mobility. Angew. Chem. Int. Ed. 47, 755–758 (2008).
Kato, Y. et al. High-power all-solid-state batteries using sulfide superionic conductors. Nat. Energy 1, 16030 (2016).
Lee, Y.-G. et al. High-energy long-cycling all-solid-state lithium metal batteries enabled by silver–carbon composite anodes. Nat. Energy 5, 299–308 (2020).
Hakari, T. et al. Structural and electronic-state changes of a sulfide solid electrolyte during the Li deinsertion–insertion processes. Chem. Mater. 29, 4768–4774 (2017).
Jung, S. H. et al. Ni-rich layered cathode materials with electrochemo-mechanically compliant microstructures for all-solid-state Li batteries. Adv. Energy Mater. 10, 1903360 (2020).
Doux, J.-M. et al. Pressure effects on sulfide electrolytes for all solid-state batteries. J. Mater. Chem. A 8, 5049–5055 (2020).
Kataoka, R., Kojima, T. & Takeichi, N. Electrochemical property of Li–Mn cation disordered Li-rich Li2MnO3 with NaCl type structure. J. Electrochem Soc. 165, A291–A296 (2018).
Wang, X. et al. Structure evolution and thermal stability of high-energy-density Li-ion battery cathode Li2VO2F. J. Electrochem Soc. 164, A1552–A1558 (2017).
Kosova, N. V., Rezepova, D. O. & Slobodyuk, A. B. Effect of annealing temperature on the structure and electrochemistry of LiVO3. Electrochim. Acta 167, 75–83 (2015).
Chen, R. et al. Li+ intercalation in isostructural Li2VO3 and Li2VO2F with O2− and mixed O2−/F− anions. Phys. Chem. Chem. Phys. 17, 17288–17295 (2015).
Yamamoto, T. Assignment of pre-edge peaks in K-edge X-ray absorption spectra of 3d transition metal compounds: electric dipole or quadrupole? X-Ray Spectrom. 37, 572–584 (2008).
Miyuki, T., Okuyama, Y., Kojima, T. & Sakai, T. In-situ measurement of electrode thickness change during charge and discharge of a large capacity SiO anode. Electrochemistry 80, 405–408 (2012).
Sauerteig, D., Ivanov, S., Reinshagen, H. & Bund, A. Reversible and irreversible dilation of lithium-ion battery electrodes investigated by in-situ dilatometry. J. Power Sources 342, 939–946 (2017).
Izumi, F. & Momma, K. Three-dimensional visualization in powder diffraction. Solid State Phenom. 130, 15–20 (2007).
Oishi, R. et al. Rietveld analysis software for J-PARC. Nucl. Instrum. Methods Phys. Res A 600, 94–96 (2009).
Momma, K. & Izumi, F. VESTA 3 for three-dimensional visualization of crystal, volumetric and morphology data. J. Appl. Crystallogr. 44, 1272–1276 (2011).
Newville, M. IFEFFIT: interactive XAFS analysis and FEFF fitting. J. Synchrotron Radiat. 8, 322–324 (2001).
Wallwork, K. S., Kennedy, B. J. & Wang, D. The high resolution Powder Diffraction Beamline for the Australian Synchrotron. AIP Conf. Proc. 879, 879–882 (2007).
Ohara, K. et al. Time-resolved pair distribution function analysis of disordered materials on beamlines BL04B2 and BL08W at SPring-8. J. Synchrotron Radiat. 25, 1627–1633 (2018).
Acknowledgements
N.Y. acknowledges the partial support from JSPS, Grant-in-Aid for Scientific Research (grant numbers 19H05816 and 21H04698), and MEXT programme ‘Elements Strategy Initiative to Form Core Research Center (JPMXP0112101003)’, MEXT; Ministry of Education Culture, Sports, Science and Technology, Japan. This work was partially supported by JST, CREST grant number JPMJCR21O6, Japan. N.S. and D.G. acknowledge the support from the Australian Research Council (ARC) through the projects DP200100959, FT200100707 and the Research Training Program (RTP). K.O. thanks the support from JSPS, Grant-in-Aid for Scientific Research (grant number 19H05814). This study was partially supported by the SOLiD-EV project (JPNP18003) of NEDO. The synchrotron X-ray absorption work was done under the approval of the Photon Factory Program Advisory Committee (proposal number 2019G033). The synchrotron radiation experiments were performed at the BL19B2 and BL04B2 of SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (proposal numbers 2019B1685 and 2020A2135) and on the powder diffraction beamline at the Australian Synchrotron operated by the Australian Nuclear Science and Technology Organisation (ANSTO). The ND experiments at the Materials and Life Science Experimental Facility of the J-PARC were performed under a user program (proposal number 2019PM2004). We thank the beamline scientists and support staff at these facilities. N.Y. thanks A. Nakao for the fruitful discussion about photoelectron spectroscopy.
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N.Y. conceived the basic idea for this project and led the research. I.K. performed the material synthesis, electrochemical testing and structural/spectroscopic characterization including, XRD, ND, XAS and thermal analysis. D.G. and N.S. conducted operando XRD study and contributed to the interpretation of the results. T.M. performed the dilatometry study. T.M. and Y.Y conducted the electrochemical testing with solid-state electrolyte. S.H. and K.O. conducted total X-ray scattering study and PDF analysis and discussed the interpretation of the results. Y.M. performed XPS study. H.B.R. conducted electrochemical characterization. T.I. performed ND measurement. I.K., N.S. and N.Y. discussed fundamental ideas for the overall study. I.K., N.S. and N.Y. wrote the paper.
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Konuma, I., Goonetilleke, D., Sharma, N. et al. A near dimensionally invariable high-capacity positive electrode material. Nat. Mater. 22, 225–234 (2023). https://doi.org/10.1038/s41563-022-01421-z
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DOI: https://doi.org/10.1038/s41563-022-01421-z