Thermally assisted conversion of biowaste into environment-friendly energy storage materials for lithium-ion batteries

Chang Won Ho, Nitheesha Shaji, Hong Ki Kim, Jae Woo Park, Murugan Nanthagopal, Chang Woo Lee

Research output: Contribution to journalArticlepeer-review

Abstract

This study reports the thermally assisted solid-state synthesis of a cathode comprising a biowaste-derived nitrogen-doped carbon coating on LiFePO4 (LFP) for Li-ion batteries. The eggshell membrane (ESM), which mainly consists of collagen, is converted into nitrogen-doped carbon with good ionic and electrical conductivity during thermally driven decomposition. The ESM-coated LFP (ESM@LFP) containing pyrrolic nitrogen, pyridinic nitrogen, and oxidized pyridinic nitrogen has been motivated to improve its ionic and electrical conductivity, that promotes the movement of Li-ions and electrons on the LFP surface. ESM@LFP exhibits stable cyclability and ~16.3% of increased specific discharge capacity for 100 cycles at a current rate of 1C compared to bare LFP.

Original languageEnglish
Article number131654
JournalChemosphere
Volume286
DOIs
Publication statusPublished - Jan 2022

Keywords

  • Biowaste
  • Eggshell membrane
  • Environment
  • Li-ion battery

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