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Structural Distortion in the Wadsley-Roth Niobium Molybdenum Oxide Phase Triggering Extraordinarily Stable Battery Performance.
Wu, Zhibin; Liang, Gemeng; Kong Pang, Wei; Zou, Jinshuo; Zhang, Wenchao; Chen, Libao; Ji, Xiaobo; Didier, Christophe; Peterson, Vanessa K; Segre, Carlo U; Johannessen, Bernt; Guo, Zaiping.
Afiliación
  • Wu Z; State Key Laboratory for Powder Metallurgy, Central South University, Changsha, 410083, China.
  • Liang G; Institute for Superconducting & Electronic Materials, School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
  • Kong Pang W; School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia.
  • Zou J; Institute for Superconducting & Electronic Materials, School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
  • Zhang W; School of Chemical Engineering, The University of Adelaide, Adelaide, SA 5005, Australia.
  • Chen L; Institute for Superconducting & Electronic Materials, School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
  • Ji X; State Key Laboratory for Powder Metallurgy, Central South University, Changsha, 410083, China.
  • Didier C; State Key Laboratory for Powder Metallurgy, Central South University, Changsha, 410083, China.
  • Peterson VK; College of Chemistry and Chemical Engineering, Central South University, Changsha, 410083, China.
  • Segre CU; Institute for Superconducting & Electronic Materials, School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
  • Johannessen B; Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organisation, Sydney, NSW 2234, Australia.
  • Guo Z; Institute for Superconducting & Electronic Materials, School of Mechanical, Materials, Mechatronic and Biomedical Engineering, University of Wollongong, Wollongong, NSW 2522, Australia.
Angew Chem Int Ed Engl ; 63(9): e202317941, 2024 Feb 26.
Article en En | MEDLINE | ID: mdl-38197798
ABSTRACT
Wadsley-Roth niobium oxide phases have attracted extensive research interest recently as promising battery anodes. We have synthesized the niobium-molybdenum oxide shear phase (Nb, Mo)13 O33 with superior electrochemical Li-ion storage performance, including an ultralong cycling lifespan of at least 15000 cycles. During electrochemical cycling, a reversible single-phase solid-solution reaction with lithiated intermediate solid solutions is demonstrated using in situ X-ray diffraction, with the valence and short-range structural changes of the electrode probed by in situ Nb and Mo K-edge X-ray absorption spectroscopy. This work reveals that the superior stability of niobium molybdenum oxides is underpinned by changes in octahedral distortion during electrochemical reactions, and we report an in-depth understanding of how this stabilizes the oxide structure during cycling with implications for future long-life battery material design.
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2024 Tipo del documento: Article País de afiliación: China
Texto completo
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PubMed Links
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Revista: Angew Chem Int Ed Engl Año: 2024 Tipo del documento: Article País de afiliación: China