Improvement of Electrochemical Properties of Lithium-Oxygen Batteries Using a Silver Electrode

Jin Bum Park; Xiangyi Luo; Jun Lu; Chang Dae Shin; Chong Seung Yoon; Khalil Amine; Yang Kook Sun

doi:10.1021/acs.jpcc.5b04653

Improvement of Electrochemical Properties of Lithium-Oxygen Batteries Using a Silver Electrode

Jin Bum Park, Xiangyi Luo, Jun Lu^*, Chang Dae Shin, Chong Seung Yoon, Khalil Amine, Yang Kook Sun

^*Corresponding author for this work

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

21 Citations (Scopus)

Abstract

Silver (Ag) electrodes are prepared by an electrodeposition method at -0.25 V versus SCE. To evaluate the effect of particle size on Li-air cells, deposition times are 3, 10, 30, and 300 s. When cycled at a current density of 0.032 mA cm^-2, the Ag-deposited electrode for 300 s shows very low polarization corresponding to the oxygen evolution reaction potential at 3.6 V. X-ray diffraction studies confirm that the main discharge product is Li₂O₂, and the results of scanning electron microscopy and transmission electron microscopy of the discharged electrodes show lithium peroxides at different positions due to the limitation of active sites on silver particles.

Original language	English
Pages (from-to)	15036-15040
Number of pages	5
Journal	Journal of Physical Chemistry C
Volume	119
Issue number	27
DOIs	https://doi.org/10.1021/acs.jpcc.5b04653
Publication status	Published - 9 Jul 2015
Externally published	Yes

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title = "Improvement of Electrochemical Properties of Lithium-Oxygen Batteries Using a Silver Electrode",

abstract = "Silver (Ag) electrodes are prepared by an electrodeposition method at -0.25 V versus SCE. To evaluate the effect of particle size on Li-air cells, deposition times are 3, 10, 30, and 300 s. When cycled at a current density of 0.032 mA cm-2, the Ag-deposited electrode for 300 s shows very low polarization corresponding to the oxygen evolution reaction potential at 3.6 V. X-ray diffraction studies confirm that the main discharge product is Li2O2, and the results of scanning electron microscopy and transmission electron microscopy of the discharged electrodes show lithium peroxides at different positions due to the limitation of active sites on silver particles.",

author = "Park, {Jin Bum} and Xiangyi Luo and Jun Lu and Shin, {Chang Dae} and Yoon, {Chong Seung} and Khalil Amine and Sun, {Yang Kook}",

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T1 - Improvement of Electrochemical Properties of Lithium-Oxygen Batteries Using a Silver Electrode

AU - Park, Jin Bum

AU - Luo, Xiangyi

AU - Lu, Jun

AU - Shin, Chang Dae

AU - Yoon, Chong Seung

AU - Amine, Khalil

AU - Sun, Yang Kook

PY - 2015/7/9

Y1 - 2015/7/9

N2 - Silver (Ag) electrodes are prepared by an electrodeposition method at -0.25 V versus SCE. To evaluate the effect of particle size on Li-air cells, deposition times are 3, 10, 30, and 300 s. When cycled at a current density of 0.032 mA cm-2, the Ag-deposited electrode for 300 s shows very low polarization corresponding to the oxygen evolution reaction potential at 3.6 V. X-ray diffraction studies confirm that the main discharge product is Li2O2, and the results of scanning electron microscopy and transmission electron microscopy of the discharged electrodes show lithium peroxides at different positions due to the limitation of active sites on silver particles.

AB - Silver (Ag) electrodes are prepared by an electrodeposition method at -0.25 V versus SCE. To evaluate the effect of particle size on Li-air cells, deposition times are 3, 10, 30, and 300 s. When cycled at a current density of 0.032 mA cm-2, the Ag-deposited electrode for 300 s shows very low polarization corresponding to the oxygen evolution reaction potential at 3.6 V. X-ray diffraction studies confirm that the main discharge product is Li2O2, and the results of scanning electron microscopy and transmission electron microscopy of the discharged electrodes show lithium peroxides at different positions due to the limitation of active sites on silver particles.

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EP - 15040

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

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ER -

Improvement of Electrochemical Properties of Lithium-Oxygen Batteries Using a Silver Electrode

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