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A Long Cycle-Life High-Voltage Spinel Lithium-Ion Battery Electrode Achieved by Site-Selective Doping.
Liang, Gemeng; Wu, Zhibin; Didier, Christophe; Zhang, Wenchao; Cuan, Jing; Li, Baohua; Ko, Kuan-Yu; Hung, Po-Yang; Lu, Cheng-Zhang; Chen, Yuanzhen; Leniec, Grzegorz; Kaczmarek, Slawomir Maksymilian; Johannessen, Bernt; Thomsen, Lars; Peterson, Vanessa K; Pang, Wei Kong; Guo, Zaiping.
  • Liang G; Faculty of Engineering, Institute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, NSW, Australia.
  • Wu Z; Faculty of Engineering, Institute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, NSW, Australia.
  • Didier C; Faculty of Engineering, Institute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, NSW, Australia.
  • Zhang W; Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organization, Sydney, NSW, Australia.
  • Cuan J; Faculty of Engineering, Institute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, NSW, Australia.
  • Li B; Faculty of Engineering, Institute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, NSW, Australia.
  • Ko KY; Graduate School at Shenzhen, Tsinghua University, Shenzhen, 518055, P. R. China.
  • Hung PY; Industrial Technology Research Institute, Hsinchu, Taiwan) (China.
  • Lu CZ; Industrial Technology Research Institute, Hsinchu, Taiwan) (China.
  • Chen Y; Industrial Technology Research Institute, Hsinchu, Taiwan) (China.
  • Leniec G; School of Materials Science and Engineering, Xi'an Jiaotong University, Xi'an, 710049, P. R. China.
  • Kaczmarek SM; Faculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology in Szczecin, Al. Piastów, 17, 70-310, Szczecin, Poland.
  • Johannessen B; Faculty of Mechanical Engineering and Mechatronics, West Pomeranian University of Technology in Szczecin, Al. Piastów, 17, 70-310, Szczecin, Poland.
  • Thomsen L; Australian Synchrotron, Australian Nuclear Science and Technology Organization, 800 Blackburn Road, Clayton, Victoria, 3168, Australia.
  • Peterson VK; Australian Synchrotron, Australian Nuclear Science and Technology Organization, 800 Blackburn Road, Clayton, Victoria, 3168, Australia.
  • Pang WK; Faculty of Engineering, Institute for Superconducting & Electronic Materials, University of Wollongong, Wollongong, NSW, Australia.
  • Guo Z; Australian Centre for Neutron Scattering, Australian Nuclear Science and Technology Organization, Sydney, NSW, Australia.
Angew Chem Int Ed Engl ; 59(26): 10594-10602, 2020 Jun 22.
Article en En | MEDLINE | ID: mdl-32207203
Spinel LiNi0.5 Mn1.5 O4 (LNMO) is a promising cathode candidate for the next-generation high energy-density lithium-ion batteries (LIBs). Unfortunately, the application of LNMO is hindered by its poor cycle stability. Now, site-selectively doped LNMO electrode is prepared with exceptional durability. In this work, Mg is selectively doped onto both tetrahedral (8a) and octahedral (16c) sites in the Fd 3 ‾ m structure. This site-selective doping not only suppresses unfavorable two-phase reactions and stabilizes the LNMO structure against structural deformation, but also mitigates the dissolution of Mn during cycling. Mg-doped LNMOs exhibit extraordinarily stable electrochemical performance in both half-cells and prototype full-batteries with novel TiNb2 O7 counter-electrodes. This work pioneers an atomic-doping engineering strategy for electrode materials that could be extended to other energy materials to create high-performance devices.
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Año: 2020 Tipo del documento: Article
Texto completo
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Texto completo: 1 Banco de datos: MEDLINE Idioma: En Año: 2020 Tipo del documento: Article