公开(公告)号：US20190386263A1

公开(公告)日：2019-12-19

申请号：US16171341

申请日：2018-10-25

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Lulu Bai ,  Yulian Zheng ,  Peng Wang ,  Zhijun Guo ,  Chengyou Xing ,  Jianxiong Yang ,  Qichang Cai

IPC: H01M2/04 ,  H01M2/30 ,  H01M10/04 ,  H01M2/06

Abstract: The disclosure relates to a cap assembly and a secondary battery. The cap assembly comprises: a cap plate having an electrode lead-out hole; an electrode terminal including a terminal plate which is located at a side of the cap plate and covers the electrode lead-out hole, and an outer peripheral surface of the terminal panel protrudes from an inner wall of the electrode lead-out hole; a first fixing member at least partly surrounding the terminal plate to fix the electrode terminal to the first fixing member; and a second fixing member connected with the cap plate and including a main portion, the second fixing member being separated from the electrode terminal by the first fixing member. One of the first fixing member and the main portion is provided with an engaging hole and the other is provided with an inserting portion to be inserted into the engaging hole.

公开(公告)号：US20190355943A1

公开(公告)日：2019-11-21

申请号：US16413749

申请日：2019-05-16

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xinxiang Chen ,  Chengyou Xing ,  Shoujun Huang ,  Yulian Zheng ,  Peng Wang

IPC: H01M2/04 ,  H01M2/26 ,  H01M2/08 ,  H01M2/34 ,  H01M2/12 ,  H01M10/0525 ,  H01M2/30

Abstract: The present disclosure provides a top cover assembly of a secondary battery. The top cover assembly includes: a top cover plate and a gas exhaust valve mounted in the top cover plate. The gas exhaust valve includes a valve body, a valve sleeve and a valve cover. The valve body includes a valve part, and the valve part is provided with a gas exhaust hole that communicates with an interior of the secondary battery. The valve cover seals and is connected to the valve body to form an accommodation space. The valve sleeve is located in the accommodation space, and the valve sleeve covers the valve part. A gas exhaust passage is disposed between the valve sleeve and the valve part, the valve cover is provided with a venting hole that communicates with outside, and the gas exhaust passage communicates with the gas exhaust hole and the venting hole.

公开(公告)号：US20240413492A1

公开(公告)日：2024-12-12

申请号：US18813076

申请日：2024-08-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chengyou Xing ,  Huasheng Su ,  Quankun Li ,  Weirong Zhuo ,  Haizu Jin

IPC: H01M50/536 ,  H01M50/143 ,  H01M50/179 ,  H01M50/249

Abstract: A battery cell, a battery, and an electric apparatus are provided. The battery cell includes a housing, an electrode lead-out member, an electrode assembly, and an adapter member. The housing is provided with an accommodating cavity. The electrode lead-out member is disposed at the housing. The electrode assembly is accommodated in the accommodating cavity, where the electrode assembly includes a main body portion and a tab led out of the main body portion. The adapter member is configured to connect the tab and the electrode lead-out member, and a light absorbing layer is applied to a welding position of the adapter member. The light absorbing layer is applied to the surface of the adapter member to reduce reflection, increasing the energy absorption rate of the adapter member, and lowering the welding power, and reducing the possibility of other components of the battery cell being burned, thus improving the safety of the battery cell.

公开(公告)号：US20240297401A1

公开(公告)日：2024-09-05

申请号：US18665503

申请日：2024-05-15

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huasheng SU ,  Chengyou Xing ,  Quankun LI ,  Weirong ZHUO ,  Peng WANG ,  Haizu JIN

IPC: H01M50/375 ,  H01M10/058 ,  H01M50/147 ,  H01M50/342 ,  H01M50/474

CPC classification number: H01M50/375 ,  H01M10/058 ,  H01M50/342 ,  H01M50/474 ,  H01M50/147 ,  H01M2200/10 ,  H01M2200/20

Abstract: A battery cell, a battery, and a method and a device for preparing the battery are provided. The battery cell includes: a housing, having an opening; an electrode assembly, accommodated in the housing; an end cap covering the opening and provided with a pressure relief mechanism; and an insulating member, disposed between the end cover and the electrode assembly to insulate and isolate the end cover from the electrode assembly. The insulating member includes a body and a boss, a first through hole being formed in the area of the body corresponding to the pressure relief mechanism, the boss being connected to the body and extending towards the electrode assembly, a second through hole being formed in a side surface of the boss. The first through hole and the second through hole are used for forming an exhaust channel from the interior of the battery cell to the pressure relief mechanism.

公开(公告)号：US11824286B2

公开(公告)日：2023-11-21

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 ,  H01R25/16

CPC classification number: H01R11/05 ,  H01M50/50 ,  H01M50/531 ,  H01R25/161

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：US11824285B2

公开(公告)日：2023-11-21

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 ,  H01R25/16

CPC classification number: H01R11/05 ,  H01M50/50 ,  H01M50/531 ,  H01R25/161

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：US11777184B2

公开(公告)日：2023-10-03

申请号：US17831673

申请日：2022-06-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qichang Cai ,  Chengyou Xing ,  Libin Zhong ,  Wenwei Chen ,  Quankun Li ,  Peng Wang

IPC: H01M50/645 ,  H01M50/148 ,  H01M50/186 ,  H01M50/60 ,  H01M50/15 ,  H01M50/636

CPC classification number: H01M50/645 ,  H01M50/148 ,  H01M50/186 ,  H01M50/15 ,  H01M50/60 ,  H01M50/636 ,  H01M2220/20 ,  Y02E60/10

Abstract: The present application provides an end cover assembly, a secondary battery, a battery module, a device, a liquid-injection method and a device thereof. The end cover assembly for the secondary battery includes: an end cover, provided with a through hole for injecting electrolyte, and including a connecting portion; a sealing assembly, configured to seal the through hole; a locking-fixing member, configured to be movable relative to the connecting portion in a radial direction of the through hole, so as to realize switching between a locked state and an unlocked state of the locking-fixing member and the connecting portion. In the locked state, the locking-fixing member presses against the sealing assembly to restrict the end cover to be separated from the sealing assembly; in the unlocked state, the end cover and the sealing assembly are separable to allow electrolyte to be injected from the through hole.

公开(公告)号：US11424500B2

公开(公告)日：2022-08-23

申请号：US17120593

申请日：2020-12-14

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengyou Xing ,  Chengdu Liang ,  Ningsheng Wu ,  Wenlong Kang ,  Peng Wang ,  Quankun Li ,  Lingyan Jiang

IPC: H01M50/116

Abstract: The present disclosure relates to a secondary battery, a battery module, and a device using the secondary battery as a power source. The secondary battery includes a casing and a top cover for connecting with the casing. The casing includes an end portion provided with an opening. The top cover is used to cover the opening of the casing. The top cover includes an inserting portion extending into the casing from the opening. A plurality of notches are provided on an inner side of the end portion of the casing or on a side wall of the inserting portion facing the casing. In the secondary battery, the battery module, and the device using the secondary battery as a power source according to the present disclosure, the secondary battery can reduce the possibility of short circuit occurring in the electrode assembly and improve the operational safety of the secondary battery.

公开(公告)号：US11233244B2

公开(公告)日：2022-01-25

申请号：US16804179

申请日：2020-02-28

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengyou Xing ,  Xiang Li ,  Taosheng Zhu ,  Peng Wang ,  Yulian Zheng

IPC: H01M4/02 ,  H01M4/70 ,  H01M4/66 ,  H01M10/04 ,  H01M50/54 ,  H01M4/13 ,  H01M10/052 ,  H01M50/531

Abstract: The present disclosure relates to the technical field of rechargeable battery and, particularly, relates to an electrode member, an electrode assembly and a rechargeable battery. The electrode member includes an electrode body and a conduction structure, the electrode body comprises an insulation substrate and an conduction layer placed on a surface of the insulation substrate, the conduction layer includes a first portion and a second portion extending from the first portion, the first portion is coated with an active material while the second portion is not coated with the active material, and the conduction structure is connected to the second portion. After the electrode assembly is formed by winding or stacking of the electrode members, adjacent current guide portions are electrically connected to one another by the conduction structure, without being limited by the insulation substrate, so that the conductivity of the electrode member is effectively improved.

公开(公告)号：US11094985B2

公开(公告)日：2021-08-17

申请号：US16413749

申请日：2019-05-16

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xinxiang Chen ,  Chengyou Xing ,  Shoujun Huang ,  Yulian Zheng ,  Peng Wang

IPC: H01M50/147 ,  H01M50/543 ,  H01M50/578 ,  H01M10/0525 ,  H01M50/183 ,  H01M50/342 ,  H01M50/531

Abstract: The present disclosure provides a top cover assembly of a secondary battery. The top cover assembly includes: a top cover plate and a gas exhaust valve mounted in the top cover plate. The gas exhaust valve includes a valve body, a valve sleeve and a valve cover. The valve body includes a valve part, and the valve part is provided with a gas exhaust hole that communicates with an interior of the secondary battery. The valve cover seals and is connected to the valve body to form an accommodation space. The valve sleeve is located in the accommodation space, and the valve sleeve covers the valve part. A gas exhaust passage is disposed between the valve sleeve and the valve part, the valve cover is provided with a venting hole that communicates with outside, and the gas exhaust passage communicates with the gas exhaust hole and the venting hole.