公开(公告)号：US10396339B1

公开(公告)日：2019-08-27

申请号：US15093675

申请日：2016-04-07

Applicant: Apple Inc.

Inventor： Qingcheng Zeng ,  Donald G. Dafoe ,  Andrew Chu ,  Ashley S. Harvey ,  Junwei Jiang

IPC: H01M2/30 ,  H01M2/26

Abstract: A bi-metal tab includes an internal tab segment that can be coupled to a battery cell terminal within an interior of the cell and an external tab segment that can be coupled to an element external to the cell. One tab segment includes a pin tab segment that comprises a pin, and another tab segment includes a socket tab segment comprised of a separate metal material, that comprises a socket. The socket can be at least partially enclosed, on at least two opposing sides, by the structure of the socket tab segment, and the socket and pin of the separate segments can be configured to couple, to form the tab, where at least two surfaces of the pin are in flush contact with the socket tab segment structure. A protection layer that restricts electronic transport across the tab based on exposure to particular physical conditions can be included between the tab segments.

公开(公告)号：US10116013B1

公开(公告)日：2018-10-30

申请号：US15087750

申请日：2016-03-31

Applicant: Apple Inc.

Inventor： Qingcheng Zeng ,  Donald G. Dafoe ,  Andrew Chu ,  Junwei Jiang

IPC: H02J7/00 ,  H01M10/44 ,  H01M10/0525 ,  H01M10/058 ,  H01M10/42

Abstract: A battery includes one or more protection layers, applied to one or more foil layers in the battery, which restrict electronic transport across the protection layer based on exposure to particular physical conditions. The protection layer can change from being an electrically conductive layer to being an electrically insulating layer based on the exposure. The protection layer can include a mixture of materials that change state to electrically insulating states based on exposure to various particular physical conditions. A battery can include multiple protection layers that restrict electronic transport based on exposure to different physical conditions. A protection layer applied to a foil layer that is applied to an electrode restricts electronic transport between the foil layer and the electrode based on exposure to the one or more physical conditions. A protection layer located between separate battery cells can restrict electronic transport between portions of separate battery cells.