Please use this identifier to cite or link to this item:
Title: Red Mud and Li‐Ion Batteries: A Magnetic Connection
Authors: Suryawanshi, Anil
Aravindan, Vanchiappan
Madhavi, Srinivasan
Dept. of Physics
Keywords: Red Mud
Magnetic Connection
Li?Ion Batteries
Ambient conditions
Fe2O3 anodes
Issue Date: Aug-2016
Publisher: Wiley
Citation: ChemSusChem, 9(16), 2193-2200.
Abstract: Exceptional Li‐ion battery performance is presented with the oxide component of the anode was extracted from red mud by simple magnetic separation and applied directly without any further processing. The extracted material has γ‐Fe2O3 as the major phase with inter‐dispersed phases of Ti, Al, and Si oxides. In a half‐cell assembly, the phase displayed a reversible capacity (∼697 mA h g−1) with excellent stability upon cycling. Interestingly, the stability is rendered by the multiphase constitution of the material with the presence of other electrochemically inactive metal oxides, such as Al2O3, SiO2, and Fe2TiO4, which could accommodate the strain and facilitate release during the charge–discharge processes in the electrochemically active maghemite component. We fabricated the full‐cell assembly with eco‐friendly cathode LiMn2O4 by adjusting the mass loading. Prior to full‐cell assembly, an electrochemical pre‐lithiation was enforced to overcome the irreversible capacity loss obtained from the anode. The full‐cell delivered a capacity of ∼100 mA h g−1 (based on cathode loading) with capacity retention of ∼61 % after 2000 cycles under ambient conditions.
ISSN: 1864-5631
Appears in Collections:JOURNAL ARTICLES

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.