公开(公告)号：US20240204204A1

公开(公告)日：2024-06-20

申请号：US18592838

申请日：2024-03-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Lianhua LI ,  Xianwei YANG ,  Yang LU ,  Shaowei QI ,  Chen QI ,  Zirui WU ,  Chao JIN ,  Miaomiao REN ,  Yonghuang YE

IPC: H01M4/66 ,  H01M4/74

CPC classification number: H01M4/667 ,  H01M4/662 ,  H01M4/664 ,  H01M4/668 ,  H01M4/74

Abstract: The present application provides a current collector, electrode plate, cell, battery, device, manufacturing method, and apparatus. The current collector includes a conductive layer and a support layer, wherein the conducive layer is provided on a surface of the support layer, and the support layer includes an insulating base and a support structure embedded in the insulating base to enhance strength of the support layer, which not only increases an overall strength of the current collector and can improve the problem of tape breakage during processing, but also allows strength of the support layer to be close to strength of the conductive layer, narrowing the gap in structural strength between the support layer and the conductive layer, and reducing the difference in deformation between the conductive layer and the support layer during processing, so that it is conducive to improving processing performance of the current collector.

公开(公告)号：US20230035744A1

公开(公告)日：2023-02-02

申请号：US17562286

申请日：2021-12-27

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jinfeng GAO ,  Chen QI ,  Xiyang ZUO ,  Xiaojian HUANG

IPC: B60L58/12 ,  B60L50/64 ,  H02J7/00

Abstract: Embodiments of the present application provide a charging and discharging device. The charging and discharging device includes an AC/DC converter, a first DC/DC converter, a second DC/DC converter and a control unit. The control unit is used to: receive a first charging request, the first charging request including a first charging voltage and a first charging current; set output power of the first DC/DC converter based on the first charging voltage and the first charging current; turn on the second DC/DC converter if an SOC of the energy storage unit is greater than a first threshold to charge the battery by the energy storage unit; and adjust output power of the second DC/DC converter, so as to enable a voltage difference between a bus voltage and a bus balance voltage of the charging and discharging device to be less than or equal to a preset value.