| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2012: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2011: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Research Abstract |
Composite electrode materials of iron-based oxides and carbons for lithium-air batteries were investigated. Among various iron-based oxides investigated inthis study, perovskite-related A_0.5La_0.5FeO_z（A = Ca, Sr）underwent extraction and insertion of oxideions stably in wide range of oxygen composit~ion. Because of it allows reversible and repeatable extraction/reinsertion of oxide ions at fast rate ( D = 1.2×10^-13 cm^2 s^-1), Ca_0.5La_0.5FeO_2.863 was foundto be expected as an oxygen reduction catalyst (or a mediator) for air electrode of lithium-air batteries.
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