| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a novel material having excellent electric conductivity and functioning as an electrode active material. <P>SOLUTION: The compound oxide is expressed by a composition formula: Na<SB>x</SB>Ru<SB>y</SB>O<SB>2</SB>-zH<SB>2</SB>O (in the formula, each symbol expresses a number satisfying 0.1≤x≤1, 0.95≤y≤1 and 0≤z≤0.5). <P>COPYRIGHT: (C)2005,JPO&NCIPI |
