Exploration of MnFeO3/Multiwalled Carbon Nanotubes Composite as Potential Anode for Lithium Ion Batteries.
MnFeO3, investigated for its application in sensors, catalysis, and semiconductors, was explored for the first time as anode for lithium ion batteries in the form of MnFeO3/multiwalled carbon nanotubes (MWCNT) composite. A scalable and highly reproducible sonochemical process was adopted to form the composite, wherein the interweaved MWCNT ensures better electronic conductivity and pinning of pristine MnFeO3particles with a conductive coating. MnFeO3/MWCNT composite anode exhibits superior electrochemical properties than pristine MnFeO3anode in such a manner that a steady-state reversible capacity of 840 mAh g-1was obtained at 0.5 A g-1even after 50 cycles against an inferior capacity of 200 mAh g-1offered by MnFeO3. Further, MnFeO3/MWCNT composite anode shows excellent rate capability and reversibility by way of delivering appreciable capacity values of 2960 and 410 mAh g-1at 0.5 and 10 A g-1, respectively. These results suggest that the currently synthesized MnFeO3/MWCNT nanocomposite anode could be considered as a promising candidate for next-generation hybrid energy storage applications. The study is bestowed with the identification and demonstration of earth-abundant, environment-friendly, and low-cost metals, specifically, Mn- and Fe-based composite anodes for high capacity and high rate lithium ion battery applications, which is noteworthy.
Central Electrochemical Research Institute , Karaikudi 630 006, Tamilnadu, India.
Chandra Sekhar
CS
Bongu
Central Electrochemical Research Institute , Karaikudi 630 006, Tamilnadu, India.
Jeevani
J
Ragupathi
Central Electrochemical Research Institute , Karaikudi 630 006, Tamilnadu, India.
Kalaiselvi
K
Nallathamby