期刊
SOLID STATE IONICS
卷 278, 期 -, 页码 222-227出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ssi.2015.06.022
关键词
Solid lithium ion conductor; All solid-state battery; Lithium-air batteries; Lithium metal anode
The reaction product and reaction site for solid-state lithium-air batteries were examined using a platinum pattern electrode on a lithium conducting solid electrolyte. The cell consisted of a lithium metal anode, a protective layer consisting of polyethylene oxide with the Li(CF3SO2)(2)N lithium salt, a lithium, conducting solid electrolyte of Li-1 (+) (x) (+) Al-y(x)(Ge,Ti)(2 - x)SiyP3 - yO12, and a sputtered platinum striped pattern air electrode. The cell was discharged at 1.0 mu A cm(-2) for 300 h and the reaction product was analyzed using Raman spectroscopy and X-ray photoelectron spectroscopy. The reaction product of Li2O2 was observed at the triple phase boundaries of oxygen, platinum and electrolyte, in addition to on the platinum and solid electrolyte surfaces. This result suggests that the oxygen reduction reaction can proceed on the surface of the Li2O2 reaction product (C) 2015 Elsevier B.V. All rights reserved.
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