Implantable medical device having flat electrolytic capacitor fabricated with laser welded anode sheets
    43.
    发明授权
    Implantable medical device having flat electrolytic capacitor fabricated with laser welded anode sheets 有权
    具有由激光焊接阳极片制成的扁平电解电容器的可植入医疗器械

    公开(公告)号:US06922330B2

    公开(公告)日:2005-07-26

    申请号:US10124286

    申请日:2002-04-18

    摘要: Implantable medical devices (IMDs) and components, including flat electrolytic capacitors and methods of making and using same, particularly an improved electrolytic capacitor fabricated of an electrode stack assembly comprising a plurality of capacitor layers stacked in registration upon one another. Each capacitor layer comprises a valve metal cathode layer having a cathode tab, a valve metal anode layer having an anode tab, and a separator layer located between the cathode layers. The anode layer is assembled from a plurality of valve metal anode sheets that are etched and anodized, stacked side-by-side, and electrically and mechanically joined together by laser weld beads. A valve metal anode tab having a thickness equal to one or more anode sheet is inserted into a tab notch in one or more stacked anode sheet and joined to the anode sheet stack by laser welding the tab and sheet edges together.

    摘要翻译: 可植入医疗装置(IMD)和组件,包括平面电解电容器及其制造和使用方法,特别是由电极堆叠组件制成的改进的电解电容器,该电极堆叠组件包括彼此对准堆叠的多个电容器层。 每个电容器层包括具有阴极突片的阀金属阴极层,具有阳极突片的阀金属阳极层和位于阴极层之间的隔离层。 阳极层由蚀刻和阳极氧化的多个阀金属阳极片组装,并排堆叠,并通过激光焊珠电气和机械连接在一起。 将具有等于一个或多个阳极片的厚度的阀金属阳极片插入到一个或多个堆叠的阳极片中的片状凹口中,并通过将片和片边缘激光焊接在一起而与阳极片堆叠接合。