Dataset of "Characterization of Silicon-based Fibers Prepared by Electrospinning for Potential Li-ion Battery Anodes"
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The rapid growth of electric vehicles (EVs) is driven by advances in lithium-ion batteries (LIBs), particularly in anode materials. Graphite electrodes, widely used for their high porosity, conductivity, low weight, and cost-effectiveness, face competition from monocrystalline silicon. Silicon anodes offer higher capacity and energy density, and they are safer because of their nonflammable nature. However, silicon's tendency to expand and contract during cycling presents challenges. This study explores the use of silicon nano- and microfibers to enhance battery stability, addressing these issues effectively.Monocrystalline silicon particles, obtained through milling and sieving, were used as the active component in the nanofibers. These particles, combined with organic precursors (PVP and TEOS), were processed using electrospinning to form fibers. The fibers were then annealed at 650 °C to remove the polymeric PVP component. The results provide valuable insights into the properties and interactions of the silicon nanofibers, highlighting their potential in advanced energy storage devices.
电动汽车(Electric Vehicles, EVs)的快速增长,得益于锂离子电池(Lithium-ion Batteries, LIBs)技术的进步,尤其是在负极材料领域。当前,因具备高孔隙率、优异导电性、低密度及成本效益优势而被广泛应用的石墨负极,正面临来自单晶硅材料的竞争。硅负极拥有更高的比容量与能量密度,且因其不可燃特性而具备更高的安全性,但硅在电池循环过程中易发生胀缩的特性,给其实际应用带来了诸多技术难题。本研究采用硅基纳米纤维与微米纤维以提升电池稳定性,有效解决了上述问题。研究人员通过球磨与筛分工艺制备得到单晶硅颗粒,并将其作为纳米纤维的活性组分;将该颗粒与有机前驱体(聚乙烯吡咯烷酮(Polyvinylpyrrolidone, PVP)、正硅酸乙酯(Tetraethyl orthosilicate, TEOS))混合后,通过静电纺丝工艺制备得到硅基复合纤维,随后将所得纤维在650℃下进行退火处理,以去除其中的聚合物PVP组分。本研究结果为硅基纳米纤维的性能与相互作用机制提供了宝贵的理论参考,同时凸显了其在先进储能器件中的应用潜力。



