| 摘要 |
PURPOSE:To improve the conductivity and the productivity by forming the air electrode with a complex oxide of lithium, iron, and a transition metal, and making the ratio of Fe to Li in the complex oxide composition a specific value and making the composition into a sintered body. CONSTITUTION:The air electrode is formed of a complex oxide of lithium, iron, and a transition metal, and the ratio of Fe and Li in the complex oxide composition is made Li/Fe>1(mol ratio), and the composition is sintered. As the transition metal in the iron radical alloy in the iron radical alloy powder used as the material, Pd, Ag, Mn, and the like are available. And the including amount of the transition metal in the iron radical alloy powder is generally less than 50%, preferably 10-20%. And the grading of the iron radical alloy powder is preferably made 1.5-15mum, and as the lithium salt to make a lithium compound, lithium carbonate is preferable. Consequently, the conductivity and the productivity can be improved. |
