公开(公告)号：US20200313223A1

公开(公告)日：2020-10-01

申请号：US16739488

申请日：2020-01-10

Applicant: Apple Inc.

Inventor： Loren L. Roy ,  Qingzhi GUO ,  Premanand RAMADASS ,  Hyungook YOON ,  Jinjun SHI

IPC: H01M10/04 ,  H01M10/0587 ,  H01M10/44 ,  H01M2/26 ,  H01M10/42

Abstract: The disclosed technology relates to balanced battery packs having battery cells of different capacities with higher capacity battery cells having a reduced impedance compared to lower capacity battery cells in the battery pack. The battery pack includes at least a first and second battery cell connected in parallel, with the second battery cell having a higher capacity than a capacity of the first battery cell. Tabs extending from electrodes of the second battery cell are disposed near a center of the electrodes to reduce an impedance of the second battery cell.

公开(公告)号：US20230083571A1

公开(公告)日：2023-03-16

申请号：US17447610

申请日：2021-09-14

Applicant: Apple Inc.

Inventor： Liang GUO ,  Brian J. HASKINS ,  Premanand RAMADASS ,  Ghazal SHOORIDEH ,  Jamie N. FORSLIN ,  He LI ,  Abdifatah M. MOHAMED ,  Liubin ZHOU

IPC: H01M50/543 ,  H01M10/0585 ,  H01M10/04

Abstract: This application relates to batteries with an asymmetric design. At least some batteries described herein include two sections having different shapes and/or sizes, thus having different volumes. Having a battery formed with a relatively larger sections allows for several advantages. For example, the larger section can accommodate bending of a tab used to connect several electrodes together. Additionally, with the larger section providing space for the bent tab, the electrodes can be extended in, for example, the relatively smaller section. As a result, the battery can provide additional energy storage.