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

Title
Improvement of Electrochemical Properties of Lithium Oxygen Batteries Using a Silver Electrode
Authors
윤종승
Keywords
NONAQUEOUS LI-O-2 BATTERIES; AIR BATTERIES; LIMITATIONS; STABILITY; METALS; CELLS
Issue Date
2015-07
Publisher
AMER CHEMICAL SOC
Citation
JOURNAL OF PHYSICAL CHEMISTRY C, v. 119, NO 27, Page. 15036-15040
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.
URI
http://pubs.acs.org/doi/abs/10.1021/acs.jpcc.5b04653http://hdl.handle.net/20.500.11754/26206
ISSN
1932-7447
DOI
http://dx.doi.org/10.1021/acs.jpcc.5b04653
Appears in Collections:
COLLEGE OF ENGINEERING[S](공과대학) > ETC
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE