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Kong, Fanhou [VerfasserIn]; Liang, Xue [VerfasserIn]; Rao, Yinzhao [VerfasserIn]; Bi, Xiaojia [VerfasserIn]; Bai, Ruiqi [VerfasserIn]; Yu, Xiaolong [VerfasserIn]; Wang, Dan [VerfasserIn]; Chen, Zelin [VerfasserIn]; Jiang, Hong [VerfasserIn]; Li, Changjiu [VerfasserIn]

Glass Anode Crystallization for High Specific Capacity Lithium-Ion Batteries

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  • Medientyp: E-Book
  • Titel: Glass Anode Crystallization for High Specific Capacity Lithium-Ion Batteries
  • Beteiligte: Kong, Fanhou [VerfasserIn]; Liang, Xue [VerfasserIn]; Rao, Yinzhao [VerfasserIn]; Bi, Xiaojia [VerfasserIn]; Bai, Ruiqi [VerfasserIn]; Yu, Xiaolong [VerfasserIn]; Wang, Dan [VerfasserIn]; Chen, Zelin [VerfasserIn]; Jiang, Hong [VerfasserIn]; Li, Changjiu [VerfasserIn]
  • Erschienen: [S.l.]: SSRN, [2022]
  • Umfang: 1 Online-Ressource (20 p)
  • Sprache: Englisch
  • DOI: 10.2139/ssrn.4029254
  • Identifikator:
  • Entstehung:
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  • Beschreibung: V2O5-TeO2 (VT) is one of the promising materials for electrodes in Li-ion batteries, but its application is impeded by its low conductivity and poor capacity retention. V2O5 and Li1.2V9O22 crystals are formed by the heat treatment of V2O5 -TeO2-Li2O (VTL). The vanadium-based materials VT, VTL, and VTL-X exhibited the specific capacity of 421.5, 405.3, and 637.5 mAh g-1 respectively for the 1st cycle of battery cycling performance. The cyclic efficiency of the Li-ion battery is enhanced by the addition of Li2O implying that pre-intercalation of Li-ions significantly improves the performance . After crystallization of V2O5 and Li1.2V9O22, the conductivity and specific capacity of the resulting electrode material are significantly improved. To elucidate the reaction mechanism, a structural simulation diagram of VTL during heat treatment is modeled for the first time. LiV3O8 precipitated after 200 cycles promoting the reaction kinetics and specific capacity. The synergistic effect of precipitating crystals impacts the glass structure, electrochemical reversibility, and reaction kinetics enormously, revealing the pivotal function of nanocrystal regulation in the battery cycling stability. The formation mechanism of nanocrystals during cycling is entirely different from thermal induced crystallization.The crystallization of glass electrodes during battery cycles helps to unfold the properties of glassy materials
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