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<p>FePS<sub>3</sub> has a wide range of applications in lithium-ion batteries and catalysis. Considering that FePS<sub>3</sub> has a super high theoretical specific capacity, we tried to use FePS<sub>3</sub> as cathode materials for thermal batteries. The results reveal that the micron-sized FePS<sub>3</sub> generated by a high-temperature solid-phase method has good thermal stability (2% weight loss) at temperatures above 635 ℃. Furthermore, the specific capacity exceeds 450 mAh g<sup>−1</sup> at 500 ℃, with 0.1 A cm<sup>−2</sup> current density and 1.65&#xa0;V cut-off voltage. Excellent thermal stability and high specific capacity make them very promising as cathode materials for thermal batteries. This work provides new ideas for the study of cathode materials for high specific capacity thermal batteries.</p>

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FePS3 as a potential cathode material for high specific capacity thermal batteries

  • 期刊论文

  • 发表日期：

    2025年9月3日

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  • Mengqi Zhang,
  • Zikang Zeng,
  • Xinyu Xia,
  • Qiang Yuan,
  • Licai Fu

摘要

FePS3 has a wide range of applications in lithium-ion batteries and catalysis. Considering that FePS3 has a super high theoretical specific capacity, we tried to use FePS3 as cathode materials for thermal batteries. The results reveal that the micron-sized FePS3 generated by a high-temperature solid-phase method has good thermal stability (2% weight loss) at temperatures above 635 ℃. Furthermore, the specific capacity exceeds 450 mAh g−1 at 500 ℃, with 0.1 A cm−2 current density and 1.65 V cut-off voltage. Excellent thermal stability and high specific capacity make them very promising as cathode materials for thermal batteries. This work provides new ideas for the study of cathode materials for high specific capacity thermal batteries.