Feedthrough with integrated insulator

    公开(公告)号:US11431047B2

    公开(公告)日:2022-08-30

    申请号:US16040719

    申请日:2018-07-20

    申请人: Apple Inc.

    摘要: The disclosed technology relates to an electrical feedthrough for a battery cell. The electrical feedthrough may include a rivet, an outer gasket, an inner gasket, a terminal and an insulator. The rivet compresses the outer gasket, inner gasket, and terminal to create a hermetic seal at an opening through an enclosure of the battery cell. The inner gasket includes a recessed portion for seating of the terminal to prevent rotation of the terminal with respect to the inner gasket, a protrusion for engaging a corresponding notch on the terminal to further prevent rotation of the terminal with respect to the inner gasket, and a mating surface for attaching to the insulator to align and position the insulator within the enclosure. The insulator is positioned between the battery cell and the inner gasket to prevent physical and electrical contact between the set of layers and the feedthrough.

    INTEGRATED ELECTRICAL FEEDTHROUGHS FOR WALLS OF BATTERY HOUSINGS

    公开(公告)号:US20180083312A1

    公开(公告)日:2018-03-22

    申请号:US15711273

    申请日:2017-09-21

    申请人: Apple Inc.

    摘要: Electrical feedthroughs are presented that are integrated within a wall of a battery housing. In some embodiments, an electrical feedthrough includes a battery housing defining an opening. The electrical feedthrough also includes a collar disposed around the opening and forming a single body with the wall. The electrical feedthrough also includes an electrically-conductive terminal disposed through the collar. The electrical feedthrough additionally includes an electrically-insulating material disposed between the collar and the electrically-conductive terminal and forming a seal therebetween. In some embodiments, the wall has a thickness equal to or less than 1 mm. In some embodiments, the collar protrudes into the battery housing. In other embodiments, the collar protrudes out of the battery housing. In some embodiments, a cross-sectional area of the electrically-conductive terminal is at least 40% of an area bounded by an outer perimeter of the collar. Batteries incorporating the electrical feedthroughs are also presented.

    MECHANICAL STRUCTURES FOR MAINTAINING STRUCTURAL INTEGRITY IN CYLINDRICAL POUCH CELL BATTERIES
    5.
    发明申请
    MECHANICAL STRUCTURES FOR MAINTAINING STRUCTURAL INTEGRITY IN CYLINDRICAL POUCH CELL BATTERIES 有权
    保持圆柱形电池电池结构完整性的机械结构

    公开(公告)号:US20150263378A1

    公开(公告)日:2015-09-17

    申请号:US14214128

    申请日:2014-03-14

    申请人: APPLE INC.

    IPC分类号: H01M10/04

    摘要: The disclosed embodiments relate to the design and manufacture of a battery cell. The battery cell includes a jelly roll containing layers which are wound together, including a cathode with an active coating, a separator, and an anode with an active coating. The battery cell also includes a mechanical structure disposed around a perimeter of the jelly roll to maintain a structural integrity of the jelly roll. Finally, the battery cell includes a pouch enclosing the mechanical structure and the jelly roll, wherein the pouch is flexible.

    摘要翻译: 所公开的实施例涉及电池单元的设计和制造。 电池单元包括含有层的胶卷,其卷绕在一起,包括具有活性涂层的阴极,隔膜和具有活性涂层的阳极。 电池单元还包括围绕果冻卷的周边设置的机械结构,以保持果冻卷的结构完整性。 最后,电池单元包括封闭机械结构和果冻卷的袋,其中袋是柔性的。

    Battery can
    6.
    发明授权

    公开(公告)号:US11476493B2

    公开(公告)日:2022-10-18

    申请号:US16818017

    申请日:2020-03-13

    申请人: Apple Inc.

    摘要: Aspects of the present disclosure involve various battery can designs. In general, the battery can design includes two fitted surfaces oriented opposite each other and seam welded together to form an enclosure in which a battery stack is located. To form the enclosure, the two fitted surfaces are welded together along the large perimeter. Other swelling-resisting advantages may also be achieved utilizing the battery can design described herein including, but not limited to, the ability to modify one or more can wall thicknesses to control a pressure applied to the battery stack by the can, overall reduction in wall thickness of the can through the use of stronger materials for the can surfaces, additional supports structures included within the can design, and/or bossing or other localized thinning of surfaces of the can.

    BATTERY ENCLOSURES WITH STRUCTURAL ENHANCEMENTS

    公开(公告)号:US20210320285A1

    公开(公告)日:2021-10-14

    申请号:US16844865

    申请日:2020-04-09

    申请人: Apple Inc.

    IPC分类号: H01M2/04 H01M10/0585

    摘要: Batteries according to embodiments of the present technology may include an electrode stack including a separator positioned between an anode and a cathode. The batteries may include an electrolyte. The batteries may include an enclosure extending about the electrode stack and containing the electrolyte. The enclosure may include a rigid housing defining a volume in which the electrode stack and the electrolyte are contained. The rigid housing may define a flange extending about the rigid housing. The enclosure may include a lid extending across the rigid housing. The lid may be characterized by a length and a width, and the lid may define a protrusion extending beyond the length or width on a side of the lid at a location corresponding to a predetermined strain location.

    Electrically Isolated Battery Can Assembly
    9.
    发明申请

    公开(公告)号:US20190067652A1

    公开(公告)日:2019-02-28

    申请号:US15955095

    申请日:2018-04-17

    申请人: Apple Inc.

    IPC分类号: H01M2/08 H01M2/02 H01M2/04

    摘要: A battery can assembly may include the use of insulating adhesive between the can and cover. Because the cover and can are electrically isolated from each other, the respective battery terminals may be directly coupled thereto, eliminating a feed-through to connect electrodes to positive and negative terminals. Such an assembly can eliminate the need for an electrically insulated feed-through. Additionally, welding between the cover and can, which in some cases may be difficult due to shape, size, and or restricted access, may also be eliminated. This can allow for significant simplification of the battery assembly process.