公开(公告)号：US20230335837A1

公开(公告)日：2023-10-19

申请号：US18338200

申请日：2023-06-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xin CHEN ,  Xiaoming GE

IPC: H01M50/15 ,  H01M50/103

CPC classification number: H01M50/15 ,  H01M50/103

Abstract: Described are a battery cell, a battery and a device using a battery cell as a power source, wherein the battery cell comprises a case and an end cap, wherein the case is provided with an opening, the end cap is used for covering the opening and is in sealed connection with the case, one of the case or the end cap is provided with a notch, the other is provided with a protrusion, the protrusion is provided within the notch and matches the shape of the notch, and the end cap is fitted on the case by mating the protrusion with the notch. The end cap of the battery cell of the present application is fitted on the case by mating the protrusion with the notch, which can effectively reduce the metal scrapings generated by scratching between the end cap and the case from falling into the case.

公开(公告)号：US20220238971A1

公开(公告)日：2022-07-28

申请号：US17539696

申请日：2021-12-01

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xin CHEN ,  Xiaoming GE ,  Ruoyan MA ,  Yiheng WANG

IPC: H01M50/591 ,  H01M50/103 ,  H01M50/588 ,  H01M50/202 ,  H01M50/249

Abstract: Embodiments of the present application provide an insulating film and related devices. The insulating film is configured to wrap a battery assembly, the insulating film includes a bottom coverage area, N side coverage areas and N pairs of bonding areas; the bottom coverage area has N sides, the N side coverage areas are respectively connected to the bottom coverage area outside the N sides, and can be respectively bend toward the bottom coverage area along the N sides; each pair of the N pairs of bonding areas is located between two adjacent side coverage areas, and is connected to the two adjacent side coverage areas respectively; each pair of bonding areas is configured to make the bottom coverage area and the N sides coverage areas form a space wrapping the battery assembly by bonding surfaces on the same side of each pair of bonding areas.