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Title: Excellent performance of Fe3O4-perforated graphene composite as promising anode in practical Li-ion configuration with LiMn2O4
Authors: Suryawanshi, Anil
Aravindan, Vanchiappan
Mhamane, Dattakumar
Yadav, Poonam
Patil, Shankar
Madhavi, Srinivasan
Dept. of Physics
Keywords: Perforated grapheme
Li-ion battery
Issue Date: Nov-2015
Publisher: Elsevier B.V.
Citation: Energy Storage Materials, 1, 152-157.
Abstract: In this work, we report the charge storage performance of Fe3O4-hierarchically perforated graphene nanosheet (Fe3O4-HPGN) based nanocomposite as an anode material in the full cell configuration with spinel LiMn2O4 cathode. When the electrochemical performance of Fe3O4-HPGN is evaluated in half-cell assembly (with Li metal) a first reversible capacity of 1002 mA h g−1 is noted at 0.1 C. The full-cell displays a reversible capacity of ~603 mA h g−1 (based on anode loading) at 0.11 C rate with working potential of ~2.7 V. Charge–discharge profiles for the full cell up to 10,000 cycles at 2.15 C rate show ~66% capacity retention. The observed electrochemical performance is attributed to the presence of hierarchical perforations on 2D graphene which help stabilize the electrochemically active Fe3O4 phase while facilitating the electron transport.
ISSN: 2405-8297
Appears in Collections:JOURNAL ARTICLES

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