Packaging of Roll-type Electrolytic Capacitor Elements

    公开(公告)号:US20240304394A1

    公开(公告)日:2024-09-12

    申请号:US18445743

    申请日:2024-01-12

    IPC分类号: H01G9/00 H01G9/008 H01G9/08

    CPC分类号: H01G9/0029 H01G9/008 H01G9/08

    摘要: This invention describes a packaging structure for roll-type (wound-type) aluminum conductive polymer capacitor element. Two protective substrates are applied to sandwich a roll-type capacitor element in between with an insulating material surrounding the capacitor element also in between the protective substrates. The protective substrates comprise electrically separated anodic conductive pad and cathodic conductive pad on their surfaces. The capacitor element is oriented with its axis perpendicular to the two substrates. The anodic and cathodic leads of the capacitor element pass through the through holes. An anodic external terminal is plated over the anodic conductive pad and a cathodic external terminal is plated over the cathodic conductive pad so that the anodic external terminal is electrically connected to the anodic lead and the cathodic external terminal is electrically connected to the cathodic lead. In another arrangement, the anodic and cathodic leads are bent by about 90 degree so that they point to the two sides of the packaging. External terminals are placed on the two sides of the packaging on the surfaces of the insulating material. In still another arrangement, the packaging structure uses only one protective substrate.

    Packaging structures for electronic elements and solid electrolytic capacitor elements and methods thereof

    公开(公告)号:US12057274B2

    公开(公告)日:2024-08-06

    申请号:US17667568

    申请日:2022-02-09

    摘要: This invention describes packaging structures and methods for electronic devices, especially for solid electrolytic capacitor devices. A packaging structure applies at least two protective substrates to sandwich one or multiple capacitor elements stacked together in between with an insulating material surrounding the capacitor elements also in between the protective substrates. Each protective substrate comprises an anodic conductor pad and a cathodic conductor pad. The anodic conductor pad is electrically connected to an external anode terminal, which is in turn electrically connected to the tip face of the anode end of the capacitor element. The cathodic pad is electrically connected to the cathode of the capacitor element as well as to an external cathode terminal. For quantity production, the basic concept includes sandwiching hundreds of capacitor elements in between large thin protective substrates and bonding them to the conductor pads on the protective substrates; then filling in the insulating material by a capillary filling process; then curing the assembly into a first intermediate assembly. A second intermediate assembly is then made by cutting slots over the first intermediate assembly to expose the anodic and cathodic ends of each capacitor device for subsequent metal depositions to make the external terminals.

    Electrical Feed-Through of an Electrolytic Capacitor

    公开(公告)号:US20230395328A1

    公开(公告)日:2023-12-07

    申请号:US18250180

    申请日:2021-10-27

    IPC分类号: H01G9/008 H01G9/00 H01G9/10

    CPC分类号: H01G9/008 H01G9/0029 H01G9/10

    摘要: The invention relates, amongst others, to a feedthrough pin of an electrolytic capacitor for contacting an electrode of the electrolytic capacitor and providing an electrical contact of the electrolytic capacitor on an outside of the electrolytic capacitor, the feed-through pin comprising a longitudinally extending body. According to an aspect of the invention, a first circumferential protrusion is arranged between a first section of the longitudinally extended body and a second section of the longitudinally extended body, wherein the first circumferential protrusion runs around a longitudinal axis of the longitudinally extended body and extends radially outwards over an outer contour of the first section of the longitudinally extended body and an outer contour of the second section of the longitudinally extended body.

    POLYMER CAPACITORS THAT MITIGATE ANOMALOUS CHARGING CURRENT

    公开(公告)号:US20230223204A1

    公开(公告)日:2023-07-13

    申请号:US17572053

    申请日:2022-01-10

    申请人: Apple Inc.

    IPC分类号: H01G9/042 H01G9/15 H01G9/008

    CPC分类号: H01G9/0425 H01G9/008 H01G9/15

    摘要: Many electronic devices may employ electrolytic polymer capacitors in their power supplies for noise filtering, decoupling/bypassing, frequency conversion and DC-DC and AC-DC conversion. However, some polymer capacitors exhibit an anomalous charging current phenomenon, which may prevent proper charging and cause failure in power circuits of the electronic devices. Disclosed herein are polymer capacitors that have a wide band gap material layer between an insulator/dielectric and a polymer cathode, a charge depletion region in the insulator/dielectric, or both, that may mitigate the anomalous charging current.

    Electrochemical energy storing device

    公开(公告)号:US11139122B2

    公开(公告)日:2021-10-05

    申请号:US16470580

    申请日:2017-12-27

    申请人: MacroCaps ApS

    摘要: A very high capacity capacitor or energy storage comprising a two-layer electrode structure with a separator and an electrolytic fluid, where the electrodes are parallel and connected to one of two terminals. The electrodes are connected to the terminal along a large length so that the connection to the terminal has a low resistance and so that charging may take place faster and with less heat generation.

    ENERGY STORAGE APPARATUS
    9.
    发明申请

    公开(公告)号:US20210226293A1

    公开(公告)日:2021-07-22

    申请号:US17253555

    申请日:2019-06-21

    摘要: In an embodiment, a plurality of energy storage devices arranged in a first direction, an adjacent member sandwiched between the energy storage devices, a holding member that holds the energy storage devices and the adjacent member, an insulating member sandwiched between the energy storage devices and the holding member, a bus bar, and a bus bar holding member that holds the bus bar and is arranged along the plurality of energy storage devices are provided, in which the bus bar holding member has an elastic deformation portion, and the elastic deformation portion abuts on one of the adjacent member and the insulating member, and presses the bus bar holding member against the other of the adjacent member and the insulating member.