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Lithium–Air Oxygen Shuttle Battery with a ZrO 2 ‐Based Ion‐Conducting Oxide Electrolyte
Author(s) -
Inoishi Atsushi,
Matsuka Maki,
Sakai Takaaki,
Ju YoungWan,
Ida Shintaro,
Ishihara Tatsumi
Publication year - 2015
Publication title -
chempluschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.801
H-Index - 61
ISSN - 2192-6506
DOI - 10.1002/cplu.201402041
Subject(s) - overpotential , electrolyte , anode , internal resistance , open circuit voltage , lithium (medication) , battery (electricity) , cathode , lithium cobalt oxide , inorganic chemistry , lithium titanate , electrode , materials science , chemistry , oxide , lithium ion battery , electrochemistry , voltage , electrical engineering , metallurgy , endocrinology , medicine , power (physics) , physics , quantum mechanics , engineering
A lithium–air battery based on the concept of an “oxygen shuttle” with a calcium‐stabilized ZrO 2 electrolyte is described. The observed open‐circuit voltage and discharge capacity are 1.81 V and 2179 mAh per gram of lithium, respectively, at 1073 K. When considering the transport number of an oxide ion at P O 2in an anode chamber, the observed open‐circuit voltage is reasonable. The internal resistance of the lithium–air battery has been analyzed with complex impedance, and the main internal resistance is anodic overpotential because of the platinum electrode used. After discharge, a much larger diffusion resistance, which may suggest surface oxidation of lithium, is observed. However, the observed anodic overpotential is similar to that in a magnesium–air cell reported previously, and much smaller than that of the H 2 –air fuel cell.