发明名称 |
Niobium powder and solid electrolytic capacitor using the same |
摘要 |
A niobium powder is provided for producing a niobium capacitor enhanced in the thermal stability of oxide films on niobium, with less leak current and less deterioration of leak current after application of thermal loads. The niobium powder contains form 0.005 to 0.10 mass % of hydrogen and from 0.002 to 5 mass % of sulfur and, further preferably, one or both of magnesium and aluminum in an amount from 0.002 to 1 mass % in total. The specific surface area of the powder is 1 to 10 m<2>/g and the average particle diameter of the secondary particles is 10 to 200 mum.
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申请公布号 |
US6765786(B2) |
申请公布日期 |
2004.07.20 |
申请号 |
US20030391254 |
申请日期 |
2003.03.18 |
申请人 |
KAWATETSU MINING CO., LTD. |
发明人 |
KIRIHARA TADASU;SATO NOBUYUKI;EBATO OSAMU;SAITO KAN |
分类号 |
B22F1/00;C22C1/04;C22C27/02;H01G9/052;(IPC1-7):H01G9/04;H01G9/145 |
主分类号 |
B22F1/00 |
代理机构 |
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