Kwak, Won-Jin Jung, Hun-Gi Lee, Seon-Hwa Park, Jin-Bum Aurbach, Doron Sun, Yang-Kook 2024-01-20T04:31:34Z 2024-01-20T04:31:34Z 2021-09-05 2016-04-15 0378-7753 https://pubs.kist.re.kr/handle/201004/124167 Silver nanowires have been investigated as a catalytic cathode material for lithium-oxygen batteries. Their high aspect ratio contributes to the formation of a corn-shaped layer structure of the poorly crystalline lithium peroxide (Li2O2) nanoparticles produced by oxygen reduction in poly-ether based electrolyte solutions. The nanowire morphology seems to provide the necessary large contact area and facile electron supply for a very effective oxygen reduction reaction. The unique morphology and structure of the Li2O2 deposits and the catalytic nature of the silver nano-wires promote decomposition of Li2O2 at low potentials (below 3.4 V) upon the oxygen evolution. This situation avoids decomposition of the solution species and oxidation of the electrodes during the anodic (charge) reactions, leading to high electrical efficiently of lithium-oxygen batteries. (C) 2016 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV RECHARGEABLE LI-O-2 BATTERIES AIR BATTERIES CARBON ELECTRODE POLYOL SYNTHESIS CHARGE COMPOSITE LI2O2 ELECTROCATALYSTS NANOSTRUCTURES NANOPARTICLES Silver nanowires as catalytic cathodes for stabilizing lithium-oxygen batteries Article 10.1016/j.jpowsour.2016.02.021 1 JOURNAL OF POWER SOURCES, v.311, pp.49 - 56 JOURNAL OF POWER SOURCES 311 49 56 scie scopus 000372693900007 2-s2.0-84959420755 Chemistry, Physical Electrochemistry Energy & Fuels Materials Science, Multidisciplinary Chemistry Electrochemistry Energy & Fuels Materials Science Article RECHARGEABLE LI-O-2 BATTERIES AIR BATTERIES CARBON ELECTRODE POLYOL SYNTHESIS CHARGE COMPOSITE LI2O2 ELECTROCATALYSTS NANOSTRUCTURES NANOPARTICLES Silver nanowires Lithium-oxygen battery Oxygen evolution reaction Catalyst Lithium peroxide