公开(公告)号：US11699815B1

公开(公告)日：2023-07-11

申请号：US17353059

申请日：2021-06-21

Applicant: Apple Inc.

Inventor： Qingcheng Zeng ,  Donald G. Dafoe

IPC: H01M10/42 ,  H01M10/04 ,  H01M10/44

CPC classification number: H01M10/4207 ,  H01M10/0413 ,  H01M10/4257 ,  H01M10/441 ,  H01M2010/4271

Abstract: Batteries according to embodiments of the present technology may include a first battery cell including a first body characterized by a first length and a first width, and a first tab extending from an edge of the first body. The first tab may be characterized by a width less than the first width of the first body. The batteries may also include a second battery cell stacked below the first battery cell. The second battery cell may include a second body characterized by a second length and a second width, and a second tab extending from an edge of the second body. The second tab may be characterized by a width less than the second width of the second body. The second tab may also be characterized by a width greater than the width of the first tab providing an extension of the second tab protruding from below the first tab.

公开(公告)号：US10916741B1

公开(公告)日：2021-02-09

申请号：US16049250

申请日：2018-07-30

Applicant: Apple Inc.

Inventor： Donald G. Dafoe ,  Andrew C. Chu ,  Christopher T. Campbell ,  Tobias Zeilinger ,  Kenzo Nagai ,  Qingcheng Zeng

IPC: H01M2/08 ,  H01M4/64 ,  H01M2/32 ,  H01M2/02

Abstract: Energy storage devices, battery cells, and batteries of the present technology may include a first current collector and a second current collector. At least one of the first current collector and the second current collector may be a non-metal current collector. The battery cell may include a seal between an edge region of the first current collector and an edge region of the second current collector. The seal may contact a first surface of the first current collector and a first surface of the second current collector. The battery cell may also include a metal material coupled with the non-metal current collector on a second surface of the non-metal current collector opposite the first surface.

公开(公告)号：US10686178B1

公开(公告)日：2020-06-16

申请号：US15702660

申请日：2017-09-12

Applicant: Apple Inc.

Inventor： Jonathan L. Hall ,  Luke A. Wilhelm ,  Qingcheng Zeng ,  Mujeeb Ijaz ,  Donald G. Dafoe

IPC: H01M2/20 ,  H01M10/647 ,  H01M10/625 ,  H01M10/6554 ,  H01M2/10 ,  H01M2/02

Abstract: A battery cell includes a cathode casing forming all or a majority of the external can of the battery cell. The battery further includes an anode tab covering at least a portion of a face of the battery cell and an insulating layer for electrically isolating the anode tab from the cathode casing. A plurality of such battery cells may be arranged within a battery pack in contact with each other, and may be held in compression. A conduction enhancement layer may be applied between the anode tab of a first cell and the cathode casing of a second cell within the battery pack. One or more heat dissipation elements may be arranged within the battery pack, in contact with the battery cells.

公开(公告)号：US10658632B1

公开(公告)日：2020-05-19

申请号：US16117096

申请日：2018-08-30

Applicant: Apple Inc.

Inventor： Qingcheng Zeng ,  Donald G. Dafoe ,  Kenzo Nagai

IPC: H01M4/02 ,  H01M2/04 ,  H01M2/08

Abstract: Battery housings and batteries are presented for accommodating swelling of an electrode assembly. In one aspect, a battery includes an electrode assembly that includes a cathode and an anode. The battery also includes a receptacle that includes at least one feedthrough disposed through one or more sides of the receptacle. A lid is sealed to the receptacle. The receptacle, the at least one feedthrough, and the lid form a sealed volume in which the electrode assembly and an electrolyte are disposed. The lid is configured to displace from a first position to a second position in response to a swelling of the electrode assembly within the sealed volume. The receptacle is configured to strain less than the lid during the swelling of the electrode assembly. The second position of the lid may correspond to an expanded volume of the electrode assembly that is 15% greater than an initial volume.

公开(公告)号：US20200052305A1

公开(公告)日：2020-02-13

申请号：US16658442

申请日：2019-10-21

Applicant: Apple Inc.

Inventor： Christopher T. Campbell ,  Andrew C. Chu ,  Tobias Zeilinger ,  Ghyrn E. Loveness ,  Qingcheng Zeng ,  Kenzo Nagai ,  Donald G. Dafoe

IPC: H01M4/66 ,  H01M2/18

Abstract: Energy storage devices, battery cells, and batteries of the present technology may include a first current collector, and may include a separator. The battery cell may include a first active material disposed between the first current collector and the separator. The battery cell may include an electrolyte diffusion material disposed between the first active material and the first current collector.

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：US10153474B1

公开(公告)日：2018-12-11

申请号：US15266309

申请日：2016-09-15

Applicant: Apple Inc.

Inventor： Qingcheng Zeng ,  Donald G. Dafoe

IPC: H01M2/00 ,  H01M2/16

Abstract: Battery separators are presented having improved temperature ranges for battery shutdown. The battery separators include a first layer having a first shutdown temperature range, a second layer having a second shutdown temperature range, and a third layer having a third shutdown temperature range. The first shutdown temperature range and the second shutdown temperature range have a first overlap in temperature. The second shutdown temperature range and third shutdown temperature range have a second overlap in temperature. In some embodiments, the second layer is disposed between the first layer and the third layer to create a sandwiched structure.

公开(公告)号：US20190190030A1

公开(公告)日：2019-06-20

申请号：US16273625

申请日：2019-02-12

Applicant: Apple Inc.

Inventor： Andrew C. Chu ,  Christopher T. Campbell ,  Qingcheng Zeng ,  Kenzo Nagai ,  Isaac S. Harper ,  Donald G. Dafoe

IPC: H01M4/74 ,  H01M10/0585 ,  H01M2/34 ,  H01M4/66 ,  H01M10/0525

CPC classification number: H01M4/74 ,  H01M2/348 ,  H01M4/668 ,  H01M4/72 ,  H01M10/0413 ,  H01M10/052 ,  H01M10/0525 ,  H01M10/0585 ,  H01M2004/029 ,  H01M2200/106 ,  H01M2220/10

Abstract: Energy storage devices, battery cells, and batteries of the present technology may include a first cell and a second cell disposed adjacent the first cell. The devices may include a stacked current collector coupled between the first cell and the second cell. The current collector may include a grid or matrix, and may include a combination of conductive and insulative materials.

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.

公开(公告)号：US20170092925A1

公开(公告)日：2017-03-30

申请号：US14991686

申请日：2016-01-08

Applicant: Apple Inc.

Inventor： Brian K. Shiu ,  Qingcheng Zeng

IPC: H01M2/26 ,  H01M10/04

CPC classification number: H01M2/263 ,  H01M10/0431 ,  H01M2220/30

Abstract: The disclosed embodiments relate to the design of a jelly-roll battery comprising an alternating anode and cathode layers coated with intervening separator layers wound into a jelly-roll. The alternating anode and cathode layers are coated with, respectively, an anode active coating and a cathode active coating. A first common notch and a second common notch are formed along at least one side of the jelly-roll. A common cathode tab can be bonded to the cathode tabs within the first common notch, and a common anode tab can be bonded to the anode tabs within the second common notch. The jelly-roll battery also includes a pouch enclosing the jelly-roll. Common anode and cathode tabs can extend through the pouch to provide cathode and anode terminals for the battery cell.