公开(公告)号：US20230402580A1

公开(公告)日：2023-12-14

申请号：US18449555

申请日：2023-08-14

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Chenhui LIN ,  Jianfu HE ,  Qian LIU ,  Yonghuang YE ,  Haizu JIN

IPC: H01M4/13 ,  H01M10/0587 ,  H01M10/0525

CPC classification number: H01M4/13 ,  H01M10/0587 ,  H01M10/0525 ,  H01M2220/20

Abstract: An electrode assembly includes a current collector. The current collector includes a first coating region and a second coating region. The first coating region is coated with an active substance material and the second coating region is coated with a lithiation material. In an extension direction of the current collector, a gap is disposed between the first coating region and the second coating region.

公开(公告)号：US20230361354A1

公开(公告)日：2023-11-09

申请号：US18341089

申请日：2023-06-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M10/0583 ,  H01M10/0525 ,  H01M50/466

CPC classification number: H01M10/0583 ,  H01M10/0525 ,  H01M50/466 ,  H01M2220/20

Abstract: An electrode assembly and a manufacturing method therefor, a battery cell, a battery, and a power consuming device are described. The electrode assembly includes: a first electrode plate; a first separator; and a second separator. The second separator and the first separator are located on two opposite sides of the first electrode plate in a thickness direction, and the first separator and the second separator are both turned over and enclose an edge of the first electrode plate that is provided with no tab. On this basis, the safety performance of the battery can be effectively improved.

公开(公告)号：US20230307740A1

公开(公告)日：2023-09-28

申请号：US18195443

申请日：2023-05-10

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiangyan BU ,  Wenlin ZHOU ,  Xing LI ,  Xinxiang CHEN ,  Peng WANG ,  Haizu JIN

IPC: H01M10/654 ,  H01M50/103 ,  H01M50/15 ,  H01M50/474 ,  H01M10/04

CPC classification number: H01M10/654 ,  H01M50/103 ,  H01M50/15 ,  H01M50/474 ,  H01M10/049

Abstract: Embodiments of the present application provide a battery cell. The battery cell may include: a casing having an accommodating space; an electrode assembly accommodated in the accommodating space, the electrode assembly comprising electrode plates; and a heat-conducting structure configured to be directly connected to the electrode plates and the casing to conduct heat from the electrode assembly to the casing.

公开(公告)号：US20230307624A1

公开(公告)日：2023-09-28

申请号：US18315805

申请日：2023-05-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hanli FU ,  Zhenhua LI ,  Jiawei XU ,  Ziyu YANG ,  Shuoyan XU ,  Qiang GUO ,  Xing LI ,  Shaojun NIU ,  Haizu JIN

IPC: H01M4/505 ,  H01M4/58 ,  H01M10/0525 ,  H01M10/054 ,  H01M4/131

CPC classification number: H01M4/505 ,  H01M4/5825 ,  H01M10/0525 ,  H01M10/054 ,  H01M4/131

Abstract: A secondary battery includes a negative electrode plate and a positive electrode plate. The negative electrode plate includes a negative electrode active material. The positive electrode plate includes a positive electrode active material. The negative electrode active material is selected from one or more of a silicon-based material and a tin-based material. The positive electrode active material has a molecular formula of M1xMnyM2zOaAb. M1 represents one or two of Mg and Al. M2 represents one or two of Co and Ni. A represents one or more of N, P, and S. 0

公开(公告)号：US20230231249A1

公开(公告)日：2023-07-20

申请号：US17970603

申请日：2022-10-21

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Chengdu LIANG ,  Quanguo LI ,  Yonghuang YE ,  Qian LIU ,  Haizu JIN ,  Wei LI

IPC: H01M50/204 ,  H01M4/583 ,  H01M4/525 ,  H01M4/58 ,  H01M10/04

CPC classification number: H01M50/204 ,  H01M4/583 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/0404 ,  H01M2004/027

Abstract: The present application discloses a battery module, a battery pack, an apparatus, and a method and device for manufacturing a battery module. The battery module includes n first-type battery cells and m second-type battery cells, n≥1, m≥1, and the n first-type battery cells and them second-type battery cells are arranged and satisfy: VED1>VED2, ΔF1>ΔF2, and (ΔF1×n+ΔF2×m)/(n+m)≤0.8×ΔF1, where VED1, VED2, ΔF1 and ΔF2 are respectively defined in the description.

公开(公告)号：US20230207983A1

公开(公告)日：2023-06-29

申请号：US18116322

申请日：2023-03-02

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/533 ,  H01M50/103 ,  H01M50/15 ,  H01M50/567 ,  H01M50/564 ,  H01M50/553 ,  H01M50/176 ,  H01M50/186 ,  H01M50/184 ,  H01M50/586 ,  H01M50/588 ,  H01M50/593

CPC classification number: H01M50/533 ,  H01M50/15 ,  H01M50/103 ,  H01M50/176 ,  H01M50/184 ,  H01M50/186 ,  H01M50/553 ,  H01M50/564 ,  H01M50/567 ,  H01M50/586 ,  H01M50/588 ,  H01M50/593 ,  H01M2220/20

Abstract: A battery cell may include a housing, an electrode assembly, and a pole. The housing may be integrally formed and include two first side walls arranged opposite each other in a first direction and two second side walls arranged opposite each other in a second direction, the two first side walls and the two second side walls may enclose an accommodating cavity, the housing may have at least one opening in a third direction, and the first direction, the second direction, and the third direction are perpendicular to one another. The electrode assembly may be accommodated in the accommodating cavity, and the electrode assembly may include a body structure and a tab protruding out of the body structure.

公开(公告)号：US20230170592A1

公开(公告)日：2023-06-01

申请号：US18159684

申请日：2023-01-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Huihui SHANGGUAN ,  Haizu JIN ,  Daichun TANG ,  Xinxin DU ,  Ziyu BAI ,  Ruihuan QIN

IPC: H01M50/593 ,  H01M50/586 ,  H01M50/538

CPC classification number: H01M50/593 ,  H01M50/586 ,  H01M50/538 ,  H01M2220/20

Abstract: An electrode assembly includes a first electrode plate and a second electrode plate. The first electrode plate includes a first body portion and a tab. The first body portion has a first end portion in a first direction. The tab is coupled to the first end portion. The second electrode plate includes a second body portion and an insulation portion coupled to the second body portion. The first body portion and the second body portion are stacked in a stacking direction perpendicular to the first direction. The second body portion has a second end portion close to the tab in the first direction. The insulation portion covers at least part of the second end portion so as to separate the tab from the second end portion when the tab is bent.

公开(公告)号：US20230163405A1

公开(公告)日：2023-05-25

申请号：US18094035

申请日：2023-01-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin ZHOU ,  Xing LI ,  Wenwei CHEN ,  Liangfan XU ,  Peng WANG ,  Haizu JIN

IPC: H01M50/30 ,  H01M50/593 ,  H01M50/578 ,  H01M50/148 ,  H01M10/04 ,  H01M10/613 ,  H01M10/6551

CPC classification number: H01M50/30 ,  H01M50/593 ,  H01M50/578 ,  H01M50/148 ,  H01M10/04 ,  H01M10/613 ,  H01M10/6551 ,  H01M2220/20

Abstract: Described is a battery cell, which includes a casing having a first opening; an electrode assembly received in the casing, the electrode assembly having a first tab, a second tab and a third tab, the first tab having an opposite polarity to the second tab, and the third tab having the same polarity as the first tab or the second tab; an end cap for closing the first opening; an insulating member disposed between the end cap and the electrode assembly, wherein the third tab is configured to be connected with the insulating member. It is possible to improve the heat dissipation efficiency of the battery cell by additionally providing a heat dissipation path of the electrode assembly—the third tab—the insulating member—the end cap, thereby improving the overcurrent capacity and the safety performance of the battery cell.

公开(公告)号：US20230123556A1

公开(公告)日：2023-04-20

申请号：US17979009

申请日：2022-11-02

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/152 ,  H01M50/627

Abstract: A battery cell may include an electrode assembly, a housing and an end cap. The electrode assembly may have a first tab. The housing may have an opening for receiving the electrode assembly. The end cap may include a cap body and a first convex part. The end cap may be provided with a liquid injection hole, and the liquid injection hole may be located inside of the outer peripheral surface of the first convex part. The first convex part may be provided with a flow guiding channel, the flow guiding channel may communicate with the liquid injection hole and penetrate the outer peripheral surface, and the flow guiding channel may be used for allowing at least part of the electrolyte solution to flow to outside of the outer peripheral surface.

公开(公告)号：US20230086688A1

公开(公告)日：2023-03-23

申请号：US17818407

申请日：2022-08-09

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Quanguo LI ,  Qian LIU ,  Yonghuang YE ,  Fajun HUANG ,  Haizu JIN

IPC: H01M50/209 ,  H01M50/267

Abstract: The present application provides a battery pack and a power consuming device powered by the battery pack. The battery pack includes a battery pack cavity and a plurality of battery cells received in the battery pack cavity. An interior space of the battery pack cavity can be divided into a first region with a temperature change rate of K1 and a second region with a temperature change rate of K2, where 0.066≤K1≤0.131 and 0.034≤K2≤0.066, K1 and K2 being expressed in ° C./min. The plurality of battery cells include at least one first battery cell arranged in the first region, and at least one second battery cell arranged in the second region. The battery pack of the present application can reduce or avoid the cask effect at low temperature and improve the energy retention rate at low temperature.