公开(公告)号：US20240162558A1

公开(公告)日：2024-05-16

申请号：US18513663

申请日：2023-11-20

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/375 ,  H01M10/04

CPC classification number: H01M50/375 ,  H01M10/04 ,  H01M2200/20 ,  H01M2220/20

Abstract: A battery cell may include a housing, an electrode assembly, a current collector and a pressure relief structure. The end cover may be configured for covering the opening of the housing. The current collector may be configured for connecting the electrode assembly and the end cover. The pressure relief structure may be arranged on the end cover. A side of the end cover facing away from the electrode assembly may be provided with a concave, the concave may be configured for accommodating at least a portion of the pressure relief structure, a connecting part may be formed on the end cover in an area where the concave may be provided, the connecting part may be configured for being welded to the current collector to form a first welded part, and the pressure relief structure may cover the first welded part along a thickness direction of the end cover.

公开(公告)号：US20240154268A1

公开(公告)日：2024-05-09

申请号：US18412333

申请日：2024-01-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Qingkui CHI ,  Tao PU ,  Yang ZOU ,  Wenjie YU ,  Zhisheng CHAI ,  Haizu JIN

IPC: H01M50/536 ,  H01M10/04 ,  H01M50/107 ,  H01M50/152 ,  H01M50/186 ,  H01M50/213 ,  H01M50/474

CPC classification number: H01M50/536 ,  H01M10/0404 ,  H01M10/0431 ,  H01M10/049 ,  H01M50/107 ,  H01M50/152 ,  H01M50/186 ,  H01M50/213 ,  H01M50/474

Abstract: A battery cell includes a shell, an end cover, an electrode assembly, and a current collector component. The shell has an opening, and the inner surface of the shell is provided with a first limit part in a protruding manner. The end cover covers the opening. The electrode assembly and the end cover are respectively located on both sides of the first limit part, and the electrode assembly has a tab on the side facing the end cover. The current collector component includes a body part and a connecting part, and the connecting part is connected to the first limit part. The body part includes a first welding region and a second welding region, the first welding region is located on the periphery of the second welding region, the first welding region and the second welding region are separated by the connection position between the connecting part and the body part.

公开(公告)号：US20240106084A1

公开(公告)日：2024-03-28

申请号：US18533190

申请日：2023-12-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Denghua LIN ,  Xinxiang CHEN ,  Zhijun GUO ,  Yulian ZHENG ,  Peng WANG ,  Haizu JIN

IPC: H01M50/531 ,  H01M10/058 ,  H01M50/202 ,  H01M50/209 ,  H01M50/553

CPC classification number: H01M50/531 ,  H01M10/058 ,  H01M50/202 ,  H01M50/209 ,  H01M50/553 ,  H01M2220/20

Abstract: Embodiments of the present application provide a battery cell, a battery, a power consumption device, and a method and device for producing a battery cell. The battery cell includes: a housing having an opening; an electrode assembly accommodated in the housing; an end cover configured to cover the opening and provided with an electrode terminal; and a support, disposed in the housing, where the support and the electrode assembly are arranged in a first direction, the support and the end cover are arranged in a second direction, and the first direction is perpendicular to the second direction, the support abuts against the electrode assembly in the first direction so as to limit the electrode assembly.

公开(公告)号：US20240097249A1

公开(公告)日：2024-03-21

申请号：US18521057

申请日：2023-11-28

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/171 ,  H01M50/15 ,  H01M50/591

CPC classification number: H01M50/171 ,  H01M50/15 ,  H01M50/591 ,  H01M2220/20

Abstract: Battery cell and a device and a method for manufacturing the same, a battery, and a power consumption device are provided. The battery cell includes: a shell; an end cap patch; an end cap patch; an insulating film, including a main body portion and a flanging portion, wherein the flanging portion is provided between the end cap and the end cap patch; and a first glue layer, comprising a first portion and a second portion which are provided continuously. The first portion is provided around the second portion, and the first portion is provided between the flanging portion and the end cap patch. The first portion bonds the flanging portion and the end cap patch. The second portion is provided between the end cap and the end cap patch, and the second portion bonds the end cap and the end cap patch. The first portion is thinner than the second portion.

公开(公告)号：US20240063482A1

公开(公告)日：2024-02-22

申请号：US18499193

申请日：2023-10-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/152 ,  H01M50/188 ,  H01M50/184 ,  H01M50/627 ,  H01M50/548 ,  H01M10/04

CPC classification number: H01M50/152 ,  H01M50/188 ,  H01M50/184 ,  H01M50/627 ,  H01M50/548 ,  H01M10/0422

Abstract: An end cap assembly applicable to a battery cell includes a cover plate configured to close a housing, a terminal plate located on a side of the cover plate away from the housing, a first insulation component at least partially located between the terminal plate and the cover plate, an electrode terminal penetrating the cover plate and the first insulation component and connected to the terminal plate, and a sealing element including a sealing portion and a connecting portion connected to the sealing portion. The sealing portion is disposed between a first insulation component and the cover plate to form a sealing region around the electrode terminal.

公开(公告)号：US20240014401A1

公开(公告)日：2024-01-11

申请号：US18470231

申请日：2023-09-19

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Honggang YU ,  Songjun SHI ,  Haizu JIN ,  Shutao SONG ,  Bing CHEN ,  Xinxin DU

IPC: H01M4/62 ,  H01M10/0587

CPC classification number: H01M4/628 ,  H01M10/0587 ,  H01M2004/021

Abstract: An electrode assembly includes a positive electrode plate and a negative electrode plate wound or stacked to form a bend region, and a barrier layer provided at the bend region. At least part of the barrier layer is located between the positive electrode plate and the negative electrode plate that are adjacent to each other, and is configured to prevent at least part of ions deintercalated from the positive electrode plate from being intercalated into the negative electrode plate in the bend region. A ratio of a thickness of the barrier layer to a porosity of the barrier layer is larger than or equal to 3.5 microns and smaller than or equal to 2000 microns.

公开(公告)号：US20230411746A1

公开(公告)日：2023-12-21

申请号：US18242010

申请日：2023-09-05

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Kun FANG ,  Zhijun GUO ,  Haizu JIN

IPC: H01M50/169 ,  H01M50/358

CPC classification number: H01M50/169 ,  H01M2220/20 ,  H01M50/358

Abstract: A battery cell may include: a housing having an opening; an electrode assembly, accommodated in the housing; and an end cap, including a cap body and a protruding structure, where at least a part of the cap body may be disposed around the protruding structure and laser-welded to the housing so that the end cap fits and covers the opening. In a thickness direction of the end cap, the protruding structure may protrude from an inner surface of the cap body toward the electrode assembly, and block a laser beam during welding between the cap body and the housing. A first recess may be formed on the end cap at a position corresponding to the protruding structure, and recessed from an outer surface of the cap body toward the electrode assembly.

公开(公告)号：US20230411700A1

公开(公告)日：2023-12-21

申请号：US18242547

申请日：2023-09-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED ,  JIANGSU CONTEMPORARY AMPEREX TECHNOLOGY LIMITED

Inventor： Haihe XIAO ,  Xiaowen ZHANG ,  Baiqing LI ,  Haizu JIN

IPC: H01M10/0583 ,  H01M10/0525 ,  H01M50/538

CPC classification number: H01M10/0583 ,  H01M2220/20 ,  H01M50/538 ,  H01M10/0525

Abstract: This application relates to the field of batteries, and in particular, to an electrode assembly and a manufacturing method therefor, a battery cell, a battery, and an electric apparatus. The electrode assembly may include: a first electrode plate, being folded back and forth in a first direction so that the first electrode plate includes a plurality of first laminates connected and stacked in sequence; and a second electrode plate, being opposite the first electrode plate in polarity and being folded once in a second direction so that the second electrode plate includes two second laminates connected to each other, where the second direction may be perpendicular or parallel to the first direction, and the second laminates and the first laminates may be alternately stacked in sequence.

公开(公告)号：US20230361438A1

公开(公告)日：2023-11-09

申请号：US18353605

申请日：2023-07-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Denghua LIN ,  Jie SUN ,  Zhijun GUO ,  Yongbin WU ,  Peng WANG ,  Haizu JIN

IPC: H01M50/593

CPC classification number: H01M50/593 ,  H01M2220/20

Abstract: A battery cell includes a housing having an opening, a cover plate configured to close the opening, and an electrode assembly disposed in the housing and including a main body and a tab extending from an end of the main body along a first direction. The cover plate is located on a side of the main body along a second direction perpendicular to the first direction. The battery cell further includes a first insulation piece disposed between the electrode assembly and the cover plate to dielectrically insulate the electrode assembly from the cover plate, and a second insulation piece disposed between the main body and an inner surface of the housing to dielectrically insulate the tab from the housing. The second insulation piece and the first insulation piece are discretely disposed and connected to each other.

公开(公告)号：US20230223666A1

公开(公告)日：2023-07-13

申请号：US18118753

申请日：2023-03-08

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yuqun ZENG ,  Yongshou LIN ,  Zhenhua LI ,  Haizu JIN ,  Xiaowen ZHANG

IPC: H01M50/581 ,  H01M4/62 ,  H01G11/68 ,  H01M4/66 ,  H01G11/14 ,  H01M10/0525 ,  H01G11/70 ,  H01M4/02

CPC classification number: H01M50/581 ,  H01M4/628 ,  H01G11/68 ,  H01M4/667 ,  H01G11/14 ,  H01M10/0525 ,  H01G11/70 ,  H01M2004/028 ,  H01M2200/106

Abstract: The present invention relates to a positive electrode plate and an electrochemical device. The positive electrode plate comprises a current collector, a positive active material layer and a safety coating disposed between the current collector and the positive active material layer, and wherein the safety coating comprises a polymer matrix, a conductive material and an inorganic filler and wherein when the safety coating and the positive active material layer are collectively referred as a film layer, the film layer has an elongation of 30% or more and wherein the polymer matrix of the safety coating is fluorinated polyolefin and/or chlorinated polyolefin having a crosslinked structure. The positive electrode plate may improve the safety performance during nail penetration of the electrochemical device such as capacitor, primary battery or secondary battery and the like.