| 摘要 |
The present invention provides an electrode material for capacitors, capable of ensuring a large capacitance per unit weight without worsening the leakage current property, and a capacitor using the material. The present invention also provides an electrode material for capacitors, obtained by reacting a tantalum metal and/or a niobium metal or an alloy thereof having an oxide film on the surface thereof with an alkali solution to form a tantalic acid compound and/or a niobic acid compound on the surface thereof. Furthermore, the present invention provides a capacitor using the electrode material.
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