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.