公开(公告)号：US20230261334A1

公开(公告)日：2023-08-17

申请号：US18189013

申请日：2023-03-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenfa LIN ,  Mingxi YU ,  Ning HUANG

IPC: H01M50/533 ,  H01M50/103 ,  H01M50/15 ,  H01M10/0585 ,  H01M10/04

CPC classification number: H01M50/533 ,  H01M50/103 ,  H01M50/15 ,  H01M10/0585 ,  H01M10/0404

Abstract: A battery cell includes an electrode assembly including a body and a tab, and a connecting part including a terminal connecting portion and a tab connecting portion. The terminal connecting portion is configured to connect an electrode terminal, the tab connecting portion is configured to connect the tab, and the tab connecting portion has a surface facing the body. The tab includes a first section connected to the body, a second section fixed on the surface of the tab connecting portion, and a corner section connected between the first section and the second section. The corner section exceeds the surface of the tab connecting portion in a direction from the body toward the connecting part.

公开(公告)号：US20230318155A1

公开(公告)日：2023-10-05

申请号：US18329807

申请日：2023-06-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Congsheng CHEN ,  Wenfa LIN ,  Yaoling WEN

IPC: H01M50/271 ,  H01M50/566

CPC classification number: H01M50/566 ,  H01M50/271 ,  H01M2220/20

Abstract: Embodiments provide a top cover assembly of a battery, a battery, and an electric apparatus, which can optimize the processing technology of batteries so as to improve the performance of batteries. The top cover assembly of the battery includes a top cover plate ; poles disposed on the top cover plate, each of which includes a first welding zone ; and adapting pieces configured to be electrically connected to the poles, where the adapting piece includes a second welding zone, and the second welding zone is configured to be correspondingly welded to the first welding zone to implement electrical connection; where both the first welding zone and the second welding zone are disposed obliquely with respect to a plane in which the top cover plate is located.

公开(公告)号：US20240274777A1

公开(公告)日：2024-08-15

申请号：US18644079

申请日：2024-04-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenfa LIN ,  Jie YE ,  Ying ZHAO

IPC: H01M4/04 ,  H01M10/0587

CPC classification number: H01M4/04 ,  H01M10/0587 ,  H01M2220/20

Abstract: An electrode sheet forming method includes: providing a first substrate having a defect and a second substrate having no defect; cutting the first substrate to divide the first substrate into a first portion having the effect and second portions having no defect; and connecting at least one second portion to the second substrate in the lengthwise direction of the second substrate to form an electrode sheet.

公开(公告)号：US20230420812A1

公开(公告)日：2023-12-28

申请号：US18464945

申请日：2023-09-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Congsheng CHEN ,  Wenfa LIN ,  Yaoling WEN ,  Jiang LIN ,  Minghao TANG ,  Jia LIN

IPC: H01M50/566 ,  H01M50/103

CPC classification number: H01M50/566 ,  H01M50/103

Abstract: A tab welded structure includes a conductive member and a tab formed by stacking a plurality of layers of pieces in a first direction. The conductive member is welded to the tab to form a fused area. The fused area includes a first fused portion and a second fused portion. The first fused portion extends from the tab into the conductive member in the first direction. The second fused portion is demarcated from the first fused portion, the second fused portion is located at a side portion of the first fused portion, and the second fused portion is configured to be connected to the first fused portion and the tab.

公开(公告)号：US20230216077A1

公开(公告)日：2023-07-06

申请号：US18181597

申请日：2023-03-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yaoling WEN ,  Zhongping LUO ,  Wenfa LIN

IPC: H01M10/04 ,  H01M50/202

CPC classification number: H01M10/0409 ,  H01M10/0431 ,  H01M50/202

Abstract: Disclosed are a wound electrode assembly, and a method and manufacturing apparatus for manufacturing the wound electrode assembly. The wound electrode assembly includes an electrode sheet. The electrode sheet includes a winding ending section, the winding ending section is provided with a plurality of first tabs, the plurality of first tabs are laminated, and among the two adjacent first tabs, a width of the first tab close to a winding center of the wound electrode assembly is greater than a width of the first tab away from the winding center. Among the two adjacent first tabs, a width of the first tab close to the winding center is greater than a width of the first tab away from the winding center. After the winding ending section is wound, the amount of misalignment between the two adjacent first tabs is reduced.

公开(公告)号：US20240297425A1

公开(公告)日：2024-09-05

申请号：US18659632

申请日：2024-05-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhitong SHANG ,  Congsheng CHEN ,  Mingxi YU ,  Yaoling WEN ,  Wenfa LIN

IPC: H01M50/636 ,  H01M50/15

CPC classification number: H01M50/636 ,  H01M50/15

Abstract: A battery end cover assembly includes an end cover having a liquid injection hole penetrating along a first direction. The liquid injection hole includes a first hole segment and a second hole segment divided along the first direction; the cross-sectional area of the first hole segment is larger than the cross-sectional area of the second hole segment; a stepped surface is formed between the first hole segment and the second hole segment; and the stepped surface includes a first inclined surface inclined toward the second hole segment along the first direction.

公开(公告)号：US20230299302A1

公开(公告)日：2023-09-21

申请号：US18202792

申请日：2023-05-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Shengwu ZHANG ,  Minghao TANG ,  Wenfa LIN ,  Jie YE

IPC: H01M4/62 ,  H01M50/538 ,  H01M10/04 ,  H01M10/0587

CPC classification number: H01M4/628 ,  H01M50/538 ,  H01M4/622 ,  H01M10/0431 ,  H01M10/0587 ,  H01M10/0409 ,  H01M4/623

Abstract: The present application provides an electrode assembly and a processing method and device therefor, a battery cell, a battery and a power consuming device. The electrode assembly comprises: a cathode plate, an anode plate and a separator. The cathode plate is bent M times to form M bent parts in a bent region, a first attachment region is formed on an inner surface of an Nth-bend part of the cathode plate, and a second attachment region is formed on an outer surface of the Nth-bend part; at least one part of an ion blocking layer is attached to the first attachment region, and the ion blocking layer is used for preventing ions deintercalated from the first attachment region from being intercalated into the anode plate adjacent to the first attachment region during charging; and at least one part of a reinforcing layer is attached to the second attachment region.

公开(公告)号：US20180138492A1

公开(公告)日：2018-05-17

申请号：US15868968

申请日：2018-01-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenfa LIN ,  Yuqian WEN ,  Chao YANG ,  Lei ZHANG

IPC: H01M2/36 ,  H01M2/04 ,  H01M10/0525

Abstract: A welding assembly for a liquid-injection hole of a secondary battery, including a top cover of a case, a liquid-injection hole, a sealing cover-plate and a stress release structure, wherein the liquid-injection hole is disposed in the top cover and includes a assembling recess and a through-hole arranged sequentially from top to bottom of the top cover, the assembling recess and the through-hole present a stepped transition and the radial dimension of the assembling recess is larger than that of the through-hole. The sealing cover-plate is accommodated in the assembling recess and the stress release structure is provided at one or both sides of the welding portion and capable of releasing stress from the welding portion. The welding assembly provides a stress release structure nearby the welding portion, and when the welding portion is full-strength welded, the stress-release structure can effectively release stress nearby the welding seam.