Solid Electrolytic Capacitor for Use in High Voltage and High Temperature Applications
    1.
    发明申请
    Solid Electrolytic Capacitor for Use in High Voltage and High Temperature Applications 有权
    用于高压和高温应用的固体电解电容器

    公开(公告)号:US20120106031A1

    公开(公告)日:2012-05-03

    申请号:US12916802

    申请日:2010-11-01

    IPC分类号: H01G9/025 B82Y30/00

    摘要: A capacitor assembly for use in high voltage and high temperature environments is provided. More particularly, the capacitor assembly includes a solid electrolytic capacitor element containing an anode body, a dielectric overlying the anode, and a solid electrolyte overlying the dielectric. To help facilitate the use of the capacitor assembly in high voltage applications, it is generally desired that the solid electrolyte is formed from a dispersion of preformed conductive polymer particles. In this manner, the electrolyte may remain generally free of high energy radicals (e.g., Fe2+ or Fe3+ ions) that can lead to dielectric degradation, particularly at relatively high voltages (e.g., above about 60 volts). Furthermore, to help protect the stability of the solid electrolyte at high temperatures, the capacitor element is enclosed and hermetically sealed within a housing in the presence of a gaseous atmosphere that contains an inert gas. It is believed that the housing and inert gas atmosphere are capable of limiting the amount of oxygen and moisture supplied to the conductive polymer of the capacitor. In this manner, the solid electrolyte is less likely to undergo a reaction in high temperature environments, thus increasing the thermal stability of the capacitor assembly. In addition to functioning well in both high voltage and high temperature environments, the capacitor assembly of the present invention may also exhibit a high volumetric efficiency.

    摘要翻译: 提供了一种用于高压和高温环境的电容器组件。 更具体地,电容器组件包括固体电解电容器元件,其包含阳极体,覆盖阳极的电介质和覆盖电介质的固体电解质。 为了有助于在高电压应用中使用电容器组件,通常期望固体电解质由预先形成的导电聚合物颗粒的分散体形成。 以这种方式,电解质可以保持通常不含能够导致电介质劣化的高能自由基(例如,Fe 2+或Fe 3+离子),特别是在相对高的电压(例如高于约60伏)的情况下。 此外,为了有助于在高温下保护固体电解质的稳定性,在存在含有惰性气体的气体气氛的情况下,电容器元件被封闭并密封在壳体内。 据信壳体和惰性气体气氛能够限制供应到电容器的导电聚合物的氧气和水分的量。 以这种方式,固体电解质在高温环境中不太可能发生反应,从而增加电容器组件的热稳定性。 除了在高电压和高温环境中都能很好地工作之外,本发明的电容器组件还可以表现出高的体积效率。

    Solid electrolytic capacitor for use in high voltage and high temperature applications
    2.
    发明授权
    Solid electrolytic capacitor for use in high voltage and high temperature applications 有权
    用于高压和高温应用的固体电解电容器

    公开(公告)号:US08824122B2

    公开(公告)日:2014-09-02

    申请号:US12916802

    申请日:2010-11-01

    IPC分类号: H01G9/00

    摘要: A capacitor assembly for use in high voltage and high temperature environments is provided. More particularly, the capacitor assembly includes a solid electrolytic capacitor element containing an anode body, a dielectric overlying the anode, and a solid electrolyte overlying the dielectric. To help facilitate the use of the capacitor assembly in high voltage applications, it is generally desired that the solid electrolyte is formed from a dispersion of preformed conductive polymer particles. In this manner, the electrolyte may remain generally free of high energy radicals (e.g., Fe2+or Fe3+ions) that can lead to dielectric degradation, particularly at relatively high voltages (e.g., above about 60 volts). Furthermore, to help protect the stability of the solid electrolyte at high temperatures, the capacitor element is enclosed and hermetically sealed within a housing in the presence of a gaseous atmosphere that contains an inert gas.

    摘要翻译: 提供了一种用于高压和高温环境的电容器组件。 更具体地,电容器组件包括固体电解电容器元件,其包含阳极体,覆盖阳极的电介质和覆盖电介质的固体电解质。 为了有助于在高电压应用中使用电容器组件,通常期望固体电解质由预先形成的导电聚合物颗粒的分散体形成。 以这种方式,电解质可以保持通常不含能够导致电介质劣化的高能自由基(例如,Fe 2+或Fe 3+离子),特别是在相对高的电压(例如高于约60伏)的情况下。 此外,为了有助于在高温下保护固体电解质的稳定性,在存在含有惰性气体的气体气氛的情况下,电容器元件被封闭并密封在壳体内。

    Hermetically Sealed Capacitor Assembly
    3.
    发明申请
    Hermetically Sealed Capacitor Assembly 有权
    密封电容器组件

    公开(公告)号:US20120307420A1

    公开(公告)日:2012-12-06

    申请号:US13486007

    申请日:2012-06-01

    IPC分类号: H01G9/028 H01G9/042

    CPC分类号: H01G9/10 H01G9/012

    摘要: A capacitor assembly that includes an electrolytic capacitor that contains an anode body, dielectric overlying the anode, and a solid electrolyte overlying the dielectric is provided. An anode lead is also electrically connected to the anode body and extends therefrom. The capacitor and leadframe are enclosed and hermetically sealed within a ceramic housing in the presence of an inert gas. In this manner, the solid electrolyte (e.g., conductive polymer) is less likely to undergo a reaction in high temperature environments, thus increasing the thermal stability of the capacitor assembly.

    摘要翻译: 提供一种电容器组件,其包括电解电容器,其包含阳极体,覆盖阳极的电介质和覆盖在电介质上的固体电解质。 阳极引线也电连接到阳极体并从其延伸。 在存在惰性气体的情况下,将电容器和引线框封闭并密封在陶瓷外壳内。 以这种方式,固体电解质(例如,导电聚合物)在高温环境中不太可能发生反应,从而增加电容器组件的热稳定性。

    Hermetically sealed capacitor assembly
    4.
    发明授权
    Hermetically sealed capacitor assembly 有权
    密封电容器组件

    公开(公告)号:US08780530B2

    公开(公告)日:2014-07-15

    申请号:US13486007

    申请日:2012-06-01

    IPC分类号: H01G9/00

    CPC分类号: H01G9/10 H01G9/012

    摘要: A capacitor assembly that includes an electrolytic capacitor that contains an anode body, dielectric overlying the anode, and a solid electrolyte overlying the dielectric is provided. An anode lead is also electrically connected to the anode body and extends therefrom, The capacitor and leadframe are enclosed and hermetically sealed within a ceramic housing in the presence of an inert gas. In this manner, the solid electrolyte (e.g., conductive polymer) is less likely to undergo a reaction in high temperature environments, thus increasing the thermal stability of the capacitor assembly.

    摘要翻译: 提供一种电容器组件,其包括电解电容器,其包含阳极体,覆盖阳极的电介质和覆盖在电介质上的固体电解质。 阳极引线也电连接到阳极体并从其延伸。在惰性气体的存在下,电容器和引线框被封闭并气密地密封在陶瓷壳体内。 以这种方式,固体电解质(例如,导电聚合物)在高温环境中不太可能发生反应,从而增加电容器组件的热稳定性。

    Hermetically sealed capacitor assembly
    5.
    发明授权
    Hermetically sealed capacitor assembly 有权
    密封电容器组件

    公开(公告)号:US08194395B2

    公开(公告)日:2012-06-05

    申请号:US12575627

    申请日:2009-10-08

    IPC分类号: H01G9/00

    CPC分类号: H01G9/10 H01G9/012

    摘要: A capacitor assembly that includes an electrolytic capacitor that contains an anode body, dielectric overlying the anode, and a solid electrolyte overlying the dielectric is provided. An anode lead is also electrically connected to the anode body and extends in a longitudinal direction therefrom. The anode lead is connected to an “upstanding” portion of a leadframe. Among other things, this helps to limit substantial horizontal movement of the lead and thereby improve the mechanical robustness of the part. The capacitor and leadframe are enclosed and hermetically sealed within a ceramic housing in the presence of an inert gas. It is believed that the ceramic housing is capable of limiting the amount of oxygen and moisture supplied to the conductive polymer of the capacitor. In this manner, the solid electrolyte (e.g., conductive polymer) is less likely to undergo a reaction in high temperature environments, thus increasing the thermal stability of the capacitor assembly.

    摘要翻译: 提供一种电容器组件,其包括电解电容器,其包含阳极体,覆盖阳极的电介质和覆盖在电介质上的固体电解质。 阳极引线也电连接到阳极体并沿其纵向方向延伸。 阳极引线连接到引线框架的“直立”部分。 除此之外,这有助于限制引线的实质水平运动,从而提高部件的机械坚固性。 在存在惰性气体的情况下,将电容器和引线框封闭并密封在陶瓷外壳内。 据信陶瓷壳体能够限制供应到电容器的导电聚合物的氧气和水分的量。 以这种方式,固体电解质(例如,导电聚合物)在高温环境中不太可能发生反应,从而增加电容器组件的热稳定性。

    Hermetically Sealed Capacitor Assembly
    6.
    发明申请
    Hermetically Sealed Capacitor Assembly 有权
    密封电容器组件

    公开(公告)号:US20110085285A1

    公开(公告)日:2011-04-14

    申请号:US12575627

    申请日:2009-10-08

    IPC分类号: H01G9/025 H01G9/00

    CPC分类号: H01G9/10 H01G9/012

    摘要: A capacitor assembly that includes an electrolytic capacitor that contains an anode body, dielectric overlying the anode, and a solid electrolyte overlying the dielectric is provided. An anode lead is also electrically connected to the anode body and extends in a longitudinal direction therefrom. The anode lead is connected to an “upstanding” portion of a leadframe. Among other things, this helps to limit substantial horizontal movement of the lead and thereby improve the mechanical robustness of the part. The capacitor and leadframe are enclosed and hermetically sealed within a ceramic housing in the presence of an inert gas. It is believed that the ceramic housing is capable of limiting the amount of oxygen and moisture supplied to the conductive polymer of the capacitor. In this manner, the solid electrolyte (e.g., conductive polymer) is less likely to undergo a reaction in high temperature environments, thus increasing the thermal stability of the capacitor assembly.

    摘要翻译: 提供一种电容器组件,其包括电解电容器,其包含阳极体,覆盖阳极的电介质和覆盖在电介质上的固体电解质。 阳极引线也电连接到阳极体并沿其纵向方向延伸。 阳极引线连接到引线框架的“直立”部分。 除此之外,这有助于限制引线的实质水平运动,从而提高部件的机械坚固性。 在存在惰性气体的情况下,将电容器和引线框封闭并密封在陶瓷外壳内。 据信陶瓷壳体能够限制供应到电容器的导电聚合物的氧气和水分的量。 以这种方式,固体电解质(例如,导电聚合物)在高温环境中不太可能发生反应,从而增加电容器组件的热稳定性。

    Solid electrolytic capacitor element
    7.
    发明授权
    Solid electrolytic capacitor element 有权
    固体电解电容元件

    公开(公告)号:US08355242B2

    公开(公告)日:2013-01-15

    申请号:US12945010

    申请日:2010-11-12

    IPC分类号: H01G2/12 H01G9/00

    CPC分类号: H01G9/004 H01G9/15

    摘要: A solid electrolytic capacitor element that is capable of withstanding laser welding without a significant deterioration in its electrical performance is provided. The capacitor element contains an anode body, dielectric, and solid electrolyte. To help shield the solid electrolyte from damage that might otherwise occur during manufacture of the capacitor, a multi-layered protective coating is employed in the present invention that overlies at least a portion of the solid electrolyte. More particularly, the protective coating includes a light reflective layer overlying the solid electrolyte and a stress dissipation layer overlying the light reflective layer. The light reflective layer can help reflect any light that inadvertently travels toward the capacitor during, for example, laser welding. This results in reduced contact of the solid electrolyte with the laser and thus minimizes defects in the electrolyte that would have otherwise been formed by carbonization. The stress dissipation layer can likewise help to dissipate stresses experienced by the capacitor (e.g., during encapsulation, reflow, etc.) so that they are not as likely to cause damage to the solid electrolyte. The stress dissipation layer can also be relatively porous in nature so that humidity trapped in the capacitor can escape and diminish the pressure that might otherwise be transferred to the solid electrolyte.

    摘要翻译: 提供能够耐受激光焊接而不会显着降低其电性能的固体电解电容器元件。 电容器元件包含阳极体,电介质和固体电解质。 为了帮助屏蔽固体电解质免于可能在电容器制造过程中发生的损害,在本发明中采用多层保护涂层,其覆盖至少部分固体电解质。 更具体地,保护涂层包括覆盖固体电解质的光反射层和覆盖在光反射层上的应力消散层。 在例如激光焊接期间,光反射层可以帮助反射任何无意中向电容器传播的光。 这导致固体电解质与激光的接触减少,从而最小化由碳化而另外形成的电解质中的缺陷。 应力耗散层同样可以有助于耗散电容器所经受的应力(例如,在封装,回流等期间),使得它们不会对固体电解质造成损害。 应力耗散层本质上也可以是相对多孔的,从而捕获在电容器中的湿气可以逃逸并且减小否则可能转移到固体电解质的压力。

    Solid Electrolytic Capacitor Element
    8.
    发明申请
    Solid Electrolytic Capacitor Element 有权
    固体电解电容元件

    公开(公告)号:US20120120556A1

    公开(公告)日:2012-05-17

    申请号:US12945010

    申请日:2010-11-12

    IPC分类号: H01G9/025

    CPC分类号: H01G9/004 H01G9/15

    摘要: A solid electrolytic capacitor element that is capable of withstanding laser welding without a significant deterioration in its electrical performance is provided. The capacitor element contains an anode body, dielectric, and solid electrolyte. To help shield the solid electrolyte from damage that might otherwise occur during manufacture of the capacitor, a multi-layered protective coating is employed in the present invention that overlies at least a portion of the solid electrolyte. More particularly, the protective coating includes a light reflective layer overlying the solid electrolyte and a stress dissipation layer overlying the light reflective layer. The light reflective layer can help reflect any light that inadvertently travels toward the capacitor during, for example, laser welding. This results in reduced contact of the solid electrolyte with the laser and thus minimizes defects in the electrolyte that would have otherwise been formed by carbonization. The stress dissipation layer can likewise help to dissipate stresses experienced by the capacitor (e.g., during encapsulation, reflow, etc.) so that they are not as likely to cause damage to the solid electrolyte. The stress dissipation layer can also be relatively porous in nature so that humidity trapped in the capacitor can escape and diminish the pressure that might otherwise be transferred to the solid electrolyte.

    摘要翻译: 提供能够耐受激光焊接而不会显着降低其电性能的固体电解电容器元件。 电容器元件包含阳极体,电介质和固体电解质。 为了帮助屏蔽固体电解质免于可能在电容器制造过程中发生的损害,在本发明中采用多层保护涂层,其覆盖至少部分固体电解质。 更具体地,保护涂层包括覆盖固体电解质的光反射层和覆盖在光反射层上的应力消散层。 在例如激光焊接期间,光反射层可以帮助反射任何无意中向电容器传播的光。 这导致固体电解质与激光的接触减少,从而最小化由碳化而另外形成的电解质中的缺陷。 应力耗散层同样可以有助于耗散电容器所经受的应力(例如,在封装,回流等期间),使得它们不会对固体电解质造成损害。 应力耗散层本质上也可以是相对多孔的,从而捕获在电容器中的湿气可以逃逸并且减小否则可能转移到固体电解质的压力。