Improved electrochemical properties of In2S3/g-C3N4 nanocomposite for application as anodes in lithium and sodium ion batteries

In this work, the electrochemical properties of In2S3 anode material have been successfully enhanced by its composite formation using graphitic carbon nitride (g-C3N4). The 0.8In(2)S(3):0.2 g-C3N4 composite delivers a reversible capacity of ~ 358 mAh g(-1) /1000 cycles vs. Li metal and 302 mAh g(-1 )/500 cycles vs. Na metal at current rate of 0.5 A g(-1). The g-C3N4 matrix improves the ion transfer properties, alleviates the volume alteration happening in the anode during the discharge/charge process and also helps in preventing the leaching of polysulfides generated during the electrochemical process.

Automated summary

The electrochemical properties of In2S3 anode material have been enhanced by forming composites with graphitic carbon nitride (g-C3N4). The 0.8In(2)S(3):0.2 g-C3N4 composite shows a reversible capacity of ~358 mAh g(-1)/1000 cycles vs. Li metal and 302 mAh g(-1)/500 cycles vs. Na metal at a current rate of 0.5 A g(-1). The g-C3N4 matrix improves ion transfer properties, reduces volume alteration in the anode, and prevents the leaching of polysulfides during the electrochemical process.