4.7 Article

TiNb6O17: a new electrode material for lithium-ion batteries

期刊

CHEMICAL COMMUNICATIONS
卷 51, 期 43, 页码 8970-8973

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ROYAL SOC CHEMISTRY
DOI: 10.1039/c5cc01494h

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资金

  1. National Natural Science Foundation of China [51202050, 51162007]
  2. Scientific Research Setup Fund of Hainan University
  3. Scientific Research Innovation Team of the Characteristic Resources Development and Utilization in Hainan Island
  4. Special Fund for the Midwest Universities Comprehensive Strength Promotion

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TiNb6O17 shows a similar crystal structure to Ti2Nb10O29 (Wadsley-Roth shear structure) but has larger lattice parameters and 0.49% cation vacancies, leading to its large Li+ ion diffusion coefficients. It exhibits a large initial discharge capacity of 383 mA h g(-1) at 0.1 C, high rate performance and good cyclability.

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