A Study on Surface Modification Characteristics and Charge–Discharge Mechanism of Natural Serpentinite Ore Secondary Battery

Jun Ren Zhao, Kuan-Jen Chen, Fei Yi Hung, Yung Yi Tsai, Po Ting Wu

Research output: Contribution to journalArticlepeer-review

Abstract

This study conducts low-vacuum sulfidation to form a sulfidation layer on the serpentinite-derived magnesium iron silicate, thereby enhancing its electrochemical properties. Results show (Mg,Fe)2SiO4 calcined at 900 °C has the best crystallinity, and the cubic FeS2 is synthesized on the surface of the orthorhombic magnesium iron silicate (MFS). Two distinct charge plateaus can be distinguished during the first charge process, and the discharge capacities increased significantly. This study confirms that the surface FeS2 layer provides extra ion pathways, allowing more lithium/magnesium ions to be extracted and inserted in the serpentinite-derived magnesium iron silicate. Accordingly, the serpentinite electrode boasts straightforward exploitation with low-cost advantages and potential.

Original languageEnglish
Article number13
JournalInorganics
Volume12
Issue number1
DOIs
Publication statusPublished - 2024 Jan

All Science Journal Classification (ASJC) codes

  • Inorganic Chemistry

Fingerprint

Dive into the research topics of 'A Study on Surface Modification Characteristics and Charge–Discharge Mechanism of Natural Serpentinite Ore Secondary Battery'. Together they form a unique fingerprint.

Cite this