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公开(公告)号：EP4379763A2
公开(公告)日：2024-06-05
申请号：EP24163245.4
申请日：2017-12-28
发明人： MA, Haiyan , LI, Hui , LUO, Guoqing , CHENG, Yuewei , ZHAO, Chunxia , CHEN, Xueqing , WANG, Zhidao , LIN, Fukun , YANG, Guoqi , WANG, Ning , MA, Yinghui , WANG, Yanjie , LI, Lijun , ZHANG, Honggang
IPC分类号： H01G9/052
CPC分类号： B22F9/24 , C22C1/045 , C22C27/02 , H01G9/042 , H01G9/0525 , H01G9/052 , H01G9/04 , B22F2998/1020130101 , B22F1/05 , B22F1/145 , B22F1/142 , B22F1/09
摘要： A tantalum powder, a tantalum powder compact, a tantalum powder sintered body, a tantalum anode, an electrolytic capacitor and a preparation method for tantalum powder. The tantalum powder contains boron element, and the tantalum powder has a specific surface area of greater than or equal to 4 m2/g; the ratio of the boron content of the tantalum powder to the specific surface area of the tantalum powder is 2~16; the boron content is measured in weight ppm, and the specific surface area is measured in m2/g; Powder that can pass through a ρ-mesh screen in the tantalum powder accounts for over 85% of the total weight of the tantalum powder, where p=150~170; and the tantalum powder with high CV has a low leakage current and dielectric loss, and good moldability.
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公开(公告)号：EP4379763A3
公开(公告)日：2024-09-11
申请号：EP24163245.4
申请日：2017-12-28
发明人： MA, Haiyan , LI, Hui , LUO, Guoqing , CHENG, Yuewei , ZHAO, Chunxia , CHEN, Xueqing , WANG, Zhidao , LIN, Fukun , YANG, Guoqi , WANG, Ning , MA, Yinghui , WANG, Yanjie , LI, Lijun , ZHANG, Honggang
CPC分类号： C22C1/045 , C22C27/02 , H01G9/042 , H01G9/0525 , H01G9/052 , H01G9/04 , B22F2998/1020130101 , B22F1/05 , B22F1/145 , B22F1/142 , B22F1/09
摘要： A tantalum powder, a tantalum powder compact, a tantalum powder sintered body, a tantalum anode, an electrolytic capacitor and a preparation method for tantalum powder. The tantalum powder contains boron element, and the tantalum powder has a specific surface area of greater than or equal to 4 m2/g; the ratio of the boron content of the tantalum powder to the specific surface area of the tantalum powder is 2~16; the boron content is measured in weight ppm, and the specific surface area is measured in m2/g; Powder that can pass through a ρ-mesh screen in the tantalum powder accounts for over 85% of the total weight of the tantalum powder, where p=150~170; and the tantalum powder with high CV has a low leakage current and dielectric loss, and good moldability.
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公开(公告)号：EP3733325A1
公开(公告)日：2020-11-04
申请号：EP17936755.2
申请日：2017-12-28
发明人： MA, Haiyan , LI, Hui , LUO, Guoqing , CHENG, Yuewei , ZHAO, Chunxia , CHEN, Xueqing , WANG, Zhidao , LIN, Fukun , YANG, Guoqi , WANG, Ning , MA, Yinghui , WANG, Yanjie , LI, Lijun , ZHANG, Honggang
摘要： A tantalum powder, a tantalum powder compact, a tantalum powder sintered body, a tantalum anode, an electrolytic capacitor and a preparation method for tantalum powder. The tantalum powder contains boron element, and the tantalum powder has a specific surface area of greater than or equal to 4 m 2 /g; the ratio of the boron content of the tantalum powder to the specific surface area of the tantalum powder is 2∼16; the boron content is measured in weight ppm, and the specific surface area is measured in m 2 /g; Powder that can pass through a p-mesh screen in the tantalum powder accounts for over 85% of the total weight of the tantalum powder, where ρ=150∼170; and the tantalum powder with high CV has a low leakage current and dielectric loss, and good moldability.
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