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<p>Electrode materials exhibiting a low volume expansion rate during charge and discharge cycles are advantageous for lithium-ion battery applications, as they minimize the risk of lithium dendrite formation and enhance the cycle stability and safety performance of the battery. One-dimensional nanostructures offer several advantages over traditional powder materials in the field of electrochemistry, including enhanced charge transport and increased surface area interaction. In this work, one-dimensional Y<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> nanotubes were synthesized via a single-nozzle electrospinning technique at 800°C. These nanotubes feature an outer diameter of approximately 200&#xa0;nm, an inner diameter close to 150&#xa0;nm, and a thickness of roughly 30&#xa0;nm. Their electrochemical properties were compared with those of Y<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> nanopowders for applications in lithium-ion batteries. When subjected to a high current density of 5000&#xa0;mA/g, the Y<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> nanotubes and nanopowders demonstrate specific capacities of 271 mAh/g and 128 mAh/g, respectively, along with impressive cycling performance.</p>

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Electrospun Y2Ti2O7 Nanotubes Suitable for High Charging Current Applications for Lithium-Ion Batteries

  • 期刊论文

  • 发表日期：

    2026年4月5日

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  • Shanshan Cong,
  • Hongquan Yu,
  • Baojiu Chen,
  • Hong Zhao,
  • Yong Zhang,
  • Xiaoguang Xu

摘要

Electrode materials exhibiting a low volume expansion rate during charge and discharge cycles are advantageous for lithium-ion battery applications, as they minimize the risk of lithium dendrite formation and enhance the cycle stability and safety performance of the battery. One-dimensional nanostructures offer several advantages over traditional powder materials in the field of electrochemistry, including enhanced charge transport and increased surface area interaction. In this work, one-dimensional Y2Ti2O7 nanotubes were synthesized via a single-nozzle electrospinning technique at 800°C. These nanotubes feature an outer diameter of approximately 200 nm, an inner diameter close to 150 nm, and a thickness of roughly 30 nm. Their electrochemical properties were compared with those of Y2Ti2O7 nanopowders for applications in lithium-ion batteries. When subjected to a high current density of 5000 mA/g, the Y2Ti2O7 nanotubes and nanopowders demonstrate specific capacities of 271 mAh/g and 128 mAh/g, respectively, along with impressive cycling performance.