公开(公告)号：US20230261313A1

公开(公告)日：2023-08-17

申请号：US18303017

申请日：2023-04-19

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shoujun HUANG ,  Yulian ZHENG ,  Peng WANG ,  Xinxiang CHEN ,  Yanyu LIU

IPC: H01M50/342

CPC classification number: H01M50/3425

Abstract: A pressure relief mechanism is provided. The pressure relief mechanism is disposed on a housing plate of a battery cell, and including: a connecting portion, located in a peripheral region of the pressure relief mechanism, and configured to connect to the housing plate; a first part, where one end of the first part is connected to the connecting portion, and the other end of the first part extends obliquely toward an interior of the battery cell; a fragile portion, connected to the extending end of the first part; and a second part, taking a shape that protrudes toward the interior of the battery cell. An outer edge region of the second part is connected to the fragile portion. When an internal temperature or gas pressure of the battery cell is less than a preset value, the fragile portion is squeezed and pressed by the first part and/or the second part.

公开(公告)号：US20230140187A1

公开(公告)日：2023-05-04

申请号：US18148237

申请日：2022-12-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chengyou XING ,  Yulian ZHENG ,  Taosheng ZHU ,  Peng WANG ,  Zhijun GUO

IPC: H01R11/05 ,  H01M50/531 ,  H01M50/50

Abstract: A rechargeable battery includes a battery core and a connection member. The connection member includes a guide plate and a first connecting plate integrally formed on the guide plate and connected to a tab of the battery core. The first connecting plate is disposed in a bendable manner relative to the guide plate, and at least one indentation is present between the first connecting plate and the guide plate. The tab extends from a side of a core body of the battery core in a width direction. At least a portion of the guide plate protrudes, relative to the first connecting plate, towards the core body of the battery core to form a protrusion, and the protrusion abuts against the battery core.

公开(公告)号：US20230136854A1

公开(公告)日：2023-05-04

申请号：US18148184

申请日：2022-12-29

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chengyou XING ,  Yulian ZHENG ,  Taosheng ZHU ,  Peng WANG ,  Zhijun GUO

IPC: H01R11/05 ,  H01M50/531 ,  H01M50/50

Abstract: A rechargeable battery includes a battery core, a connection member, and a gasket. The connection member includes a guide plate and a first connecting plate integrally formed on the guide plate and connected to a tab of the battery core. The first connecting plate is disposed in a bendable manner relative to the guide plate, and at least one indentation is present between the first connecting plate and the guide plate. The gasket is fastened to the first connecting plate and the tab. The tab is sandwiched between the first connecting plate and the gasket.

公开(公告)号：US20220384904A1

公开(公告)日：2022-12-01

申请号：US17701905

申请日：2022-03-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shoujun HUANG ,  Yanyu LIU ,  Xinxiang CHEN ,  Yulian ZHENG ,  Peng WANG

IPC: H01M50/325 ,  H01M10/04

Abstract: The present application provides an end cover assembly, a battery cell, a battery, an electric device and a method for preparing a battery cell and an apparatus for manufacturing a battery cell. The present application provides an end cover assembly, where the end cover assembly includes: a cover plate provided with a pressure relief hole; a fixing member fixed on the cover plate, the fixing member having a first through hole and a second through hole, and the first through hole being opposite to the pressure relief hole; and a gas permeable membrane covering at least a portion of the pressure relief hole, an edge part of the gas permeable membrane being connected to the fixing member, and a portion of the edge part being embedded into the second through hole, so as to prevent the edge part from moving relative to the fixing member.

公开(公告)号：US20220367996A1

公开(公告)日：2022-11-17

申请号：US17622024

申请日：2020-09-07

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xinxiang CHEN ,  Shoujun HUANG ,  Yulian ZHENG ,  Peng WANG ,  Wei LI ,  Chengdu LIANG

IPC: H01M50/655 ,  H01M50/15 ,  H01M50/186 ,  H01M50/342 ,  H01M50/308 ,  H01M50/184 ,  H01M50/103 ,  H01M50/209

Abstract: An end cover assembly includes: an end cover with a through hole for injecting electrolyte and a first clamping portion, wherein the first clamping portion is disposed along a circumferential direction of the through hole and is located on one side of the end cover away from an interior of the battery cell; a sealing ring for sealing the through hole; and a pressure relief device covering at least part of the sealing ring and closing the through hole; wherein the pressure relief device includes a second clamping portion, and is rotatable such that when the pressure relief device is rotated to a first position, the second clamping portion is clamped with the first clamping portion; and when the pressure relief device is rotated to a second position, the second clamping portion is disengaged from the first clamping portion.

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：US20210013458A1

公开(公告)日：2021-01-14

申请号：US16826228

申请日：2020-03-21

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Huasheng SU ,  Shoujun HUANG ,  Yulian ZHENG

IPC: H01M2/02 ,  H01M2/08 ,  H01M2/06

Abstract: The disclosure relates to a cap assembly and a secondary battery. The cap assembly includes: a cap plate including a main portion and a convex portion, wherein the main portion includes a first surface, a second surface and an electrode lead-out hole; an electrode terminal including an extension portion that extends beyond a hole wall of the electrode lead-out hole and extends in a circumferential direction of the electrode lead-out hole to form a ring structure, and the extension portion is arranged on a side of the first surface away from the second surface; and a sealing ring at least partially disposed between the extension portion and the main portion, wherein the convex portion is disposed on the second surface and around the electrode lead-out hole and has a thickness of 0.01 mm to 2 mm, a top surface of the convex portion extends out of the second surface.