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Electrospun Y2Ti2O7 Nanotubes Suitable for High Charging Current Applications for Lithium-Ion Batteries
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DOI：10.1007/s11664-026-12830-0.png)
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Abstract
En 中文
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 degrees 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.
Keywords:
One-dimensional
Y2Ti2O7 nanotubes
lithium-ion batteries
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J
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2.5
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485
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