Rice husk derived graphene and zinc oxide composite anode for high reversible capacity lithium-ion batteries

Ojo Friday Abraham, Victor Sunday Aigbodion, Emenike Chinedozi Ejiogu, Uche Chinwoke Ogbuefi

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Due to the low toxicity, high theoretical capacity, abundant resources, low potential, of zinc oxide (ZnO), it is regarded as the next-generation lithium-ion battery anode material. However, because of the significant drawback in terms of volume expansion during the charge-discharge cycles, ZnO is easily pulverized and agglomerated. In this research work, we synthesize 0.5 g of rice husk-derived graphene (R0.5) and 1.0 g of ZnO (Z1.0) composite (R0.5Z1.0) to accommodate the volume expansion of ZnO during the charge-discharge process as a next-generation lithium-ion battery anode. Rice husk as a graphene source will support the future usage of bio-based materials for active material synthesis. The samples were characterized via SEM, XRD, and Fourier infrared spectroscopy, and with a discharge capacity of 895.2 mAhg−1 at a current density of 200 mAg−1 after 110 cycles, the composite material demonstrated remarkable Li storing characteristics and electrochemical performance as an anode for lithium-ion battery application.

Original languageEnglish
Article number108885
JournalDiamond and Related Materials
Volume123
DOIs
Publication statusPublished - Mar 2022

Keywords

  • Anode
  • Cycling performance
  • Discharge capacity
  • Lithium-ion batteries

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • General Chemistry
  • Mechanical Engineering
  • Materials Chemistry
  • Electrical and Electronic Engineering

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