NDLI: A Co3O4@MnO2/Ni nanocomposite as a carbon- and binder-free cathode for rechargeable Li

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A Co₃O₄@MnO₂/Ni nanocomposite as a carbon- and binder-free cathode for rechargeable Li–O₂ batteries

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Inorganic Chemistry Frontiers Vol - 3 Issue - 5

Inorganic Chemistry Frontiers Vol - 3 Issue - 4

Inorganic Chemistry Frontiers Vol - 3 Issue - 3

Inorganic Chemistry Frontiers Vol - 3 Issue - 2

Inorganic Chemistry Frontiers Vol -2

Inorganic Chemistry Frontiers Vol -1

A Co₃O₄@MnO₂/Ni nanocomposite as a carbon- and binder-free cathode for rechargeable Li–O₂ batteries

Content Provider	Royal Society of Chemistry (RSC)
Author	Cheng, Fangyi Chen, Jun Li, Fujun Han, Xiaopeng Chen, Chengcheng
Copyright Year	2016
Abstract	Rational design and synthesis of cathode catalysts are crucial for enhancing the performance of rechargeable Li–O2 batteries. Here, we report a controlled synthesis of the nanocomposite, Co3O4 nanohorns coated with MnO2 nanosheets on a Ni foam (Co3O4@MnO2/Ni). It integrates the catalytic activities of oxygen reduction and oxygen evolution reactions and functions as a carbon- and binder-free cathode catalyst for rechargeable Li–O2 batteries. This nanocomposite catalyst presents a small discharge/charge voltage gap of 0.76 V (a low polarization) and a long cycle life of 170 cycles at 300 mA g−1, coupled with an ionic liquid-based electrolyte, 0.5 M lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) in 1-ethyl-3-methylimidazolium bis(trifluoromethanesulfonyl)imide (EMITFSI), which are much better than those based on the individual Co3O4 and MnO2 cathodes. The enhanced electrochemical performance is ascribed to the integrated bifunctional catalytic activities and the porous micro/nanostructure of the Co3O4@MnO2/Ni nanocomposite, as well as the ionic liquid-based electrolyte, indicating its promising application in rechargeable Li–O2 batteries.
Starting Page	866
Ending Page	871
Page Count	6
File Format	HTM / HTML PDF
ISSN	20521553
Volume Number	3
Issue Number	6
Journal	Inorganic Chemistry Frontiers
DOI	10.1039/c6qi00066e
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Li Cathode Nanocomposite Oxygen Oxygen evolution Carbon Electrolyte Lithium Imide Electrochemistry Nanostructure
Content Type	Text
Resource Type	Article
Subject	Inorganic Chemistry

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