公开(公告)号：US20240332726A1

公开(公告)日：2024-10-03

申请号：US18742339

申请日：2024-06-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huasheng SU ,  Chengyou XING ,  Chunguang XU ,  Quankun LI ,  Peng WANG ,  Haizu JIN

IPC: H01M50/375 ,  H01M50/107 ,  H01M50/179 ,  H01M50/367 ,  H01M50/533 ,  H01M50/586 ,  H01M50/59

CPC classification number: H01M50/375 ,  H01M50/107 ,  H01M50/179 ,  H01M50/367 ,  H01M50/533 ,  H01M50/586 ,  H01M50/59 ,  H01M2200/10 ,  H01M2200/20 ,  H01M2220/20

Abstract: A battery cell, a battery, and an electric device are provided. The battery cell includes: a housing having a first wall; a pressure relief mechanism provided on the first wall; an electrode leading-out portion provided on the housing; an electrode assembly provided in the housing and provided with tabs; and an adapter connected to the electrode leading-out portion and the tabs, wherein the adapter is provided with a reinforcing portion, and in the thickness direction of the first wall, the projection of the reinforcing portion on the first wall at least partially covers the pressure relief mechanism.

公开(公告)号：US20240258586A1

公开(公告)日：2024-08-01

申请号：US18631360

申请日：2024-04-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO, LIMITED.

Inventor： Wenwei CHEN ,  Jiang LIU ,  Ying HUANG ,  Quankun LI

IPC: H01M10/42 ,  H01M10/052 ,  H01M10/058 ,  H01M50/15 ,  H01M50/249

CPC classification number: H01M10/4242 ,  H01M10/052 ,  H01M10/058 ,  H01M50/15 ,  H01M50/249 ,  H01M2220/20

Abstract: Embodiments of the present application provide a battery cell, a battery, and a power consumption apparatus, which could effectively improve performance of the battery without increasing the internal space of the battery. The battery cell includes: at least two electrode assemblies, a surface of each electrode assembly of the at least two electrode assemblies including a curved part, and curved parts of two adjacent electrode assemblies of the at least two electrode assemblies forming an accommodating space; and a lithium replenishing apparatus, at least part of the lithium replenishing apparatus being disposed in the accommodating space.

公开(公告)号：US20240154240A1

公开(公告)日：2024-05-09

申请号：US18413080

申请日：2024-01-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Kaihuan YANG ,  Ting ZHENG ,  Wenzhong LIU ,  Quankun LI ,  Peng WANG

IPC: H01M50/342 ,  H01M50/147 ,  H01M50/249

CPC classification number: H01M50/3425 ,  H01M50/147 ,  H01M50/249 ,  H01M2200/20 ,  H01M2220/20

Abstract: A pressure relief apparatus may include a pressure relief portion and a plurality of stages of indented grooves. The pressure relief portion may be provided with a first surface and a second surface arranged opposite to each other in a thickness direction thereof. The plurality of stages of indented grooves may be formed in the pressure relief portion in sequence in a direction from the first surface to the second surface, and among two adjacent stages of indented grooves, the stage of indented groove away from the first surface may be formed in a bottom surface of the stage of indented groove close to the first surface. The pressure relief portion may be provided with an opening area, and the indented grooves may be formed along an edge of the opening area.

公开(公告)号：US20230395906A1

公开(公告)日：2023-12-07

申请号：US18450659

申请日：2023-08-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Shengwang CHEN ,  Quankun LI ,  Peng WANG

IPC: H01M50/15 ,  H01M50/342

CPC classification number: H01M50/15 ,  H01M50/3425 ,  H01M2220/20

Abstract: An end cap includes a cap body and a reinforcing portion. The cap body is provided with a pressure relief region arranged on a side of the cap body in a protruding manner in a thickness direction. The reinforcing portion is arranged around the pressure relief region.

公开(公告)号：US20230378574A1

公开(公告)日：2023-11-23

申请号：US18225688

申请日：2023-07-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenwei CHEN ,  Xinxiang CHEN ,  Yulian ZHENG ,  Xiangyan BU ,  Quankun LI ,  Peng WANG ,  Haizu JIN

IPC: H01M50/15 ,  H01M50/553 ,  H01M50/564 ,  H01M50/55 ,  H01M50/176 ,  H01M50/188 ,  H01M50/184 ,  H01M50/588 ,  H01M50/59 ,  H01M50/103

CPC classification number: H01M50/15 ,  H01M50/553 ,  H01M50/564 ,  H01M50/55 ,  H01M50/176 ,  H01M50/188 ,  H01M50/184 ,  H01M50/588 ,  H01M50/59 ,  H01M50/103 ,  H01M2220/20

Abstract: An end cover assembly may include an end cover and an electrode terminal. The end cover may have an abutting surface. A terminal assembly may include the electrode terminal and a connector, where the connector may be configured to connect the electrode terminal and the end cover so as to fix the electrode terminal to the end cover, and the connector abuts against the abutting surface. The abutting surface may be provided with a concave portion recessed in a thickness direction of the end cover, and the concave portion may be configured to accommodate a part of the electrode terminal.

公开(公告)号：US20230369711A1

公开(公告)日：2023-11-16

申请号：US18223549

申请日：2023-07-19

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Liangfan XU ,  Quankun LI ,  Peng WANG

IPC: H01M50/342 ,  H01M50/15 ,  H01M50/103

CPC classification number: H01M50/3425 ,  H01M50/15 ,  H01M50/103

Abstract: An end cap may comprise a cap body and a pressure relief groove. The cap body may be provided with a pressure relief portion, wherein the pressure relief groove may be formed in the cap body, and the pressure relief groove may delimit the pressure relief portion. The pressure relief portion may be bent in a thickness direction of the cap body.

公开(公告)号：US20230261312A1

公开(公告)日：2023-08-17

申请号：US18138441

申请日：2023-04-24

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Liangfan XU ,  Ningsheng WU ,  Quankun LI ,  Peng WANG

IPC: H01M50/342 ,  H01M50/474 ,  H01M50/147

CPC classification number: H01M50/3425 ,  H01M50/147 ,  H01M50/474 ,  H01M2220/20

Abstract: The present application provides an end cover assembly used for a battery cell. The end cover assembly includes: an end cover; a pressure relief mechanism arranged on the end cover and including a weak portion, the pressure relief mechanism being configured to rupture along the weak portion to release the pressure inside the battery cell when the pressure reaches a threshold; and an insulating member located on one side of the end cover facing an electrode assembly of the battery cell and including a base portion connected to the end cover and a guide portion arranged on the base portion communicating the space between the base portion and the pressure relief mechanism with the space on one side of the base portion facing away from the weak portion. In a thickness direction of the end cover, a projection of the guide portion does not overlap with a projection of the weak portion.

公开(公告)号：US20230012596A1

公开(公告)日：2023-01-19

申请号：US17946096

申请日：2022-09-16

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Quankun LI ,  Peng WANG ,  Taosheng ZHU ,  Baisong CHEN

IPC: H01M50/528 ,  H01M50/147 ,  H01M50/148 ,  H01M50/155 ,  H01M50/172 ,  H01M50/502 ,  H01M50/543 ,  H01M10/42

Abstract: The present disclosure provides a secondary battery and a battery module. The secondary battery includes: a shell having an opening; an electrode assembly including a first electrode plate, a second electrode plate, and a separator; a cap assembly including a cap plate and a first electrode terminal; a lower insulator located at a side of the cap plate away from the terminal board; and a wiring board including a main body portion and an extension portion, wherein the main body portion is located at a side of the lower insulator away from the cap plate and connected to the first electrode plate, the extension portion extends into the electrode lead-out hole and connected to the first electrode terminal, the first electrode plate is electrically connected to the first electrode terminal through the wiring board, and the first electrode terminal does not extend beyond a lower surface of the lower insulator.

公开(公告)号：US20220352573A1

公开(公告)日：2022-11-03

申请号：US17528600

申请日：2021-11-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Lei WANG ,  Wenlin ZHOU ,  Xing LI ,  Peng WANG ,  Quankun LI ,  Xingdi CHEN ,  Yulian ZHENG

IPC: H01M10/653 ,  H01M10/613 ,  H01M50/15 ,  H01M50/55 ,  H01M50/531

Abstract: The embodiments of this application provide a battery cell, a battery, a power consumption device, and a battery manufacturing method and device, which pertains to the technical field of batteries. The battery cell includes a housing, an electrode assembly, and an end cover assembly. The electrode assembly is configured to be accommodated in the housing, and includes a main body portion and a tab. The end cover assembly includes an end cover configured to cover the opening and an electrode terminal mounted on the end cover and is configured to be electrically connected to the tab. The end cover includes a first body, which has a first inner surface and a first outer surface arranged opposite to each other in a thickness direction of the first body, and a first protruding portion, which protrudes from the first outer surface in a direction departing from the main body portion.

公开(公告)号：US20220013855A1

公开(公告)日：2022-01-13

申请号：US17113047

申请日：2020-12-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Fenggang ZHAO ,  Haibo KE ,  Quankun LI ,  Ningsheng WU ,  Zhanyu SUN

IPC: H01M50/342 ,  H01M10/0525 ,  H01M50/103 ,  H01M50/209 ,  H01M50/505

Abstract: Disclosed are a battery box, a battery cell, a battery, and a method and apparatus for preparing the battery box. The battery box includes: a first wall and a second wall, the first wall intersecting the second wall; and a pressure relief mechanism including a first portion and a second portion connected to each other, the first portion and the second portion being respectively arranged at the first wall and the second wall, wherein the first portion and/or the second portion are/is configured to be able to fracture, when an internal pressure of the battery box reaches a threshold, to relieve the internal pressure. Therefore, according to the battery box, the battery cell, the battery, and the method and apparatus for preparing the battery box of embodiments of the present application, thereby the performance of the pressure relief mechanism on the battery box is improved.