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<p>The increasing global energy demand and environmental issues caused by fossil fuels necessitate renewable energy systems and effective storage solutions. This study explores the design of energy storage electrodes using 3D printing with a 316L stainless steel and polymer filament via fused deposition modeling. High-temperature sintering was used to debind the polymer and consolidate the stainless steel particles, with ceramic coatings (carbon and SiC) applied to prevent oxidation during heating. Electrodes sintered under carbon exhibited significantly higher specific capacitance (775&#xa0;mF&#xa0;cm<sup>−2</sup> at 10&#xa0;mV&#xa0;s<sup>−1</sup>) compared to those sintered under SiC (&lt; 1&#xa0;mF&#xa0;cm<sup>−2</sup>). Varying the infill ratio (40%, 70%, and 100%) revealed that a 70% infill provided optimal surface morphology and areal capacitance. This work is significant as it demonstrates a novel approach to utilizing 3D printing technology for the fabrication of customizable and efficient electrodes, addressing the critical need for energy storage applications.</p> Graphical Abstract <p></p>

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Energy storage performance of 3D-printed stainless steel electrodes: effect of sintering coverage and infill density modification

  • 期刊论文

  • 发表日期：

    2025年10月10日

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  • Abdulcabbar Yavuz,
  • Musa Yilmaz,
  • Ezgi Özgür

摘要

The increasing global energy demand and environmental issues caused by fossil fuels necessitate renewable energy systems and effective storage solutions. This study explores the design of energy storage electrodes using 3D printing with a 316L stainless steel and polymer filament via fused deposition modeling. High-temperature sintering was used to debind the polymer and consolidate the stainless steel particles, with ceramic coatings (carbon and SiC) applied to prevent oxidation during heating. Electrodes sintered under carbon exhibited significantly higher specific capacitance (775 mF cm−2 at 10 mV s−1) compared to those sintered under SiC (< 1 mF cm−2). Varying the infill ratio (40%, 70%, and 100%) revealed that a 70% infill provided optimal surface morphology and areal capacitance. This work is significant as it demonstrates a novel approach to utilizing 3D printing technology for the fabrication of customizable and efficient electrodes, addressing the critical need for energy storage applications.

Graphical Abstract