Scholarlink

<p>The study revolves around the fabrication of a symmetric solid-state supercapacitor device using a novel NiCo<sub>2</sub>S<sub>4</sub>/PVDF/CNT composite electrode. This device yielded a wide potential window of 1.5&#xa0;V (-1.6&#xa0;V to 0 or 0 to 1.5&#xa0;V), an exceptional power density (PD) of 0.54 KW/Kg, an energy density (ED) of 64.53 Wh/Kg at 1&#xa0;A/g, and a specific capacitance of 206.5&#xa0;F/g. Additionally, a test of the device’s longevity after 2500 cycles revealed a 54% capacitive retention. The reduction in stability is attributed to the depletion in active sites due to volume expansion of amorphous NiCo<sub>2</sub>S<sub>4</sub>, as observed from the EIS analysis.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Development of a symmetric supercapacitor using a novel NiCo2S4/CNT composite electrode with ultrahigh energy density

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年12月10日

查看全文
  • Abin Philip,
  • A. Ruban Kumar

摘要

The study revolves around the fabrication of a symmetric solid-state supercapacitor device using a novel NiCo2S4/PVDF/CNT composite electrode. This device yielded a wide potential window of 1.5 V (-1.6 V to 0 or 0 to 1.5 V), an exceptional power density (PD) of 0.54 KW/Kg, an energy density (ED) of 64.53 Wh/Kg at 1 A/g, and a specific capacitance of 206.5 F/g. Additionally, a test of the device’s longevity after 2500 cycles revealed a 54% capacitive retention. The reduction in stability is attributed to the depletion in active sites due to volume expansion of amorphous NiCo2S4, as observed from the EIS analysis.