An oxygen cathode with stable full discharge-charge capability based on 2D conducting oxide

Kaiming Liao; Xuebin Wang; Yang Sun; Daiming Tang; Min Han; Ping He; Xiangfen Jiang; Tao Zhang; Haoshen Zhou

doi:10.1039/c5ee01451d

An oxygen cathode with stable full discharge-charge capability based on 2D conducting oxide

Kaiming Liao, Xuebin Wang, Yang Sun, Daiming Tang, Min Han, Ping He, Xiangfen Jiang, Tao Zhang, Haoshen Zhou

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

115 Scopus citations

Abstract

A two-dimensional conducting oxide nanosheet, which was prepared by a two-step process involving exfoliation and heat treatment, was employed as a Li-O₂ cathode without adding any conductive additives. The 2D nanostructures in the Li-O₂ cathode can provide a large surface-to-mass ratio, increase the electrode-electrolyte contact area and facilitate oxygen diffusion and electron transmission. The as-synthesized conducting oxide nanosheet of RuO₂ enables the Li-O₂ cathode to be operated under full discharge-charge conditions, and to deliver a high specific capacity of ∼900 mA h g^-1 with stable discharge-charge overpotentials (0.15/0.59 V) over 50 cycles.

Original language	English
Pages (from-to)	1992-1997
Number of pages	6
Journal	Energy and Environmental Science
Volume	8
Issue number	7
DOIs	https://doi.org/10.1039/c5ee01451d
State	Published - 1 Jul 2015
Externally published	Yes

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abstract = "A two-dimensional conducting oxide nanosheet, which was prepared by a two-step process involving exfoliation and heat treatment, was employed as a Li-O2 cathode without adding any conductive additives. The 2D nanostructures in the Li-O2 cathode can provide a large surface-to-mass ratio, increase the electrode-electrolyte contact area and facilitate oxygen diffusion and electron transmission. The as-synthesized conducting oxide nanosheet of RuO2 enables the Li-O2 cathode to be operated under full discharge-charge conditions, and to deliver a high specific capacity of ∼900 mA h g-1 with stable discharge-charge overpotentials (0.15/0.59 V) over 50 cycles.",

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T1 - An oxygen cathode with stable full discharge-charge capability based on 2D conducting oxide

AU - Liao, Kaiming

AU - Wang, Xuebin

AU - Sun, Yang

AU - Tang, Daiming

AU - Han, Min

AU - He, Ping

AU - Jiang, Xiangfen

AU - Zhang, Tao

AU - Zhou, Haoshen

PY - 2015/7/1

Y1 - 2015/7/1

N2 - A two-dimensional conducting oxide nanosheet, which was prepared by a two-step process involving exfoliation and heat treatment, was employed as a Li-O2 cathode without adding any conductive additives. The 2D nanostructures in the Li-O2 cathode can provide a large surface-to-mass ratio, increase the electrode-electrolyte contact area and facilitate oxygen diffusion and electron transmission. The as-synthesized conducting oxide nanosheet of RuO2 enables the Li-O2 cathode to be operated under full discharge-charge conditions, and to deliver a high specific capacity of ∼900 mA h g-1 with stable discharge-charge overpotentials (0.15/0.59 V) over 50 cycles.

AB - A two-dimensional conducting oxide nanosheet, which was prepared by a two-step process involving exfoliation and heat treatment, was employed as a Li-O2 cathode without adding any conductive additives. The 2D nanostructures in the Li-O2 cathode can provide a large surface-to-mass ratio, increase the electrode-electrolyte contact area and facilitate oxygen diffusion and electron transmission. The as-synthesized conducting oxide nanosheet of RuO2 enables the Li-O2 cathode to be operated under full discharge-charge conditions, and to deliver a high specific capacity of ∼900 mA h g-1 with stable discharge-charge overpotentials (0.15/0.59 V) over 50 cycles.

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U2 - 10.1039/c5ee01451d

DO - 10.1039/c5ee01451d

M3 - 文章

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SN - 1754-5692

VL - 8

SP - 1992

EP - 1997

JO - Energy and Environmental Science

JF - Energy and Environmental Science

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ER -

An oxygen cathode with stable full discharge-charge capability based on 2D conducting oxide

Abstract

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