A nano-structured RuO2/NiO cathode enables the operation of non-aqueous lithium-air batteries in ambient air

P. Tan; Z. H. Wei; W. Shyy; T. S. Zhao; X. B. Zhu

doi:10.1039/c6ee00550k

A nano-structured RuO₂/NiO cathode enables the operation of non-aqueous lithium-air batteries in ambient air

P. Tan
, Z. H. Wei
, W. Shyy
, T. S. Zhao^*
, X. B. Zhu

^*Corresponding author for this work

Hong Kong University of Science and Technology

Research output: Contribution to journal › Article › peer-review

154 Citations (Scopus)

Abstract

We report a cathode composed of RuO₂ nanoparticle-decorated NiO nanosheets for a non-aqueous lithium-air battery. Unlike most of the previously reported non-aqueous lithium-air batteries that are operated with pure oxygen only, we demonstrate that the present cathode enables the battery to be truly operated in ambient air at 500 mA h g^-1 for 200 cycles (800 h), with stable coulombic efficiency (100%) and high energy efficiency (∼75%). The stellar performance is attributed to the favorable combination of RuO₂ nanoparticles and NiO nanosheets, which not only catalyzes the oxygen reduction and evolution reactions, but also promotes the decomposition of the side products, including lithium hydroxide and carbonate formed from water and carbon dioxide in the air during discharge.

Original language	English
Pages (from-to)	1783-1793
Number of pages	11
Journal	Energy and Environmental Science
Volume	9
Issue number	5
DOIs	https://doi.org/10.1039/c6ee00550k
Publication status	Published - May 2016
Externally published	Yes

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title = "A nano-structured RuO2/NiO cathode enables the operation of non-aqueous lithium-air batteries in ambient air",

abstract = "We report a cathode composed of RuO2 nanoparticle-decorated NiO nanosheets for a non-aqueous lithium-air battery. Unlike most of the previously reported non-aqueous lithium-air batteries that are operated with pure oxygen only, we demonstrate that the present cathode enables the battery to be truly operated in ambient air at 500 mA h g-1 for 200 cycles (800 h), with stable coulombic efficiency (100\%) and high energy efficiency (∼75\%). The stellar performance is attributed to the favorable combination of RuO2 nanoparticles and NiO nanosheets, which not only catalyzes the oxygen reduction and evolution reactions, but also promotes the decomposition of the side products, including lithium hydroxide and carbonate formed from water and carbon dioxide in the air during discharge.",

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AU - Tan, P.

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AU - Zhao, T. S.

AU - Zhu, X. B.

PY - 2016/5

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N2 - We report a cathode composed of RuO2 nanoparticle-decorated NiO nanosheets for a non-aqueous lithium-air battery. Unlike most of the previously reported non-aqueous lithium-air batteries that are operated with pure oxygen only, we demonstrate that the present cathode enables the battery to be truly operated in ambient air at 500 mA h g-1 for 200 cycles (800 h), with stable coulombic efficiency (100%) and high energy efficiency (∼75%). The stellar performance is attributed to the favorable combination of RuO2 nanoparticles and NiO nanosheets, which not only catalyzes the oxygen reduction and evolution reactions, but also promotes the decomposition of the side products, including lithium hydroxide and carbonate formed from water and carbon dioxide in the air during discharge.

AB - We report a cathode composed of RuO2 nanoparticle-decorated NiO nanosheets for a non-aqueous lithium-air battery. Unlike most of the previously reported non-aqueous lithium-air batteries that are operated with pure oxygen only, we demonstrate that the present cathode enables the battery to be truly operated in ambient air at 500 mA h g-1 for 200 cycles (800 h), with stable coulombic efficiency (100%) and high energy efficiency (∼75%). The stellar performance is attributed to the favorable combination of RuO2 nanoparticles and NiO nanosheets, which not only catalyzes the oxygen reduction and evolution reactions, but also promotes the decomposition of the side products, including lithium hydroxide and carbonate formed from water and carbon dioxide in the air during discharge.

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A nano-structured RuO₂/NiO cathode enables the operation of non-aqueous lithium-air batteries in ambient air

Abstract

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