公开(公告)号：US11264611B2

公开(公告)日：2022-03-01

申请号：US16424020

申请日：2019-05-28

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Haizu Jin ,  Zhenhua Li ,  Xing Li

IPC: H01M4/36 ,  H01M4/62 ,  H01M4/02

Abstract: This application relates to a battery comprising a positive electrode plate, a separator, and a negative electrode plate, wherein the positive electrode plate comprises a positive electrode current collector and at least two layers of positive active material coated on at least one surface of the positive electrode current collector, and wherein an underlying positive active material layer in contact with the positive electrode current collector comprises a first positive active material, a first polymer material and a first conductive material; and wherein an upper positive active material layer in contact with the underlying positive active material layer and away from the positive electrode current collector comprises a second positive active material, a second polymer material and a second conductive material, and the first polymer material comprises fluorinated polyolefin and/or chlorinated polyolefin polymer material. The battery has good safety and improved electrical properties.

公开(公告)号：US20240384014A1

公开(公告)日：2024-11-21

申请号：US18765363

申请日：2024-07-08

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianghui Lin ,  Yanjie Zhao ,  Xing Li ,  Haizu Jin

IPC: C08F26/06 ,  H01M4/02 ,  H01M4/62

Abstract: This application relates to an additive having a structure of general formula I, where R1 and R2 are each independently hydrogen or a C1-C12 alkyl group; R3 and R4 are each independently hydrogen, halogen, or a C1-C12 alkyl group; R5 is hydrogen or a C1-C12 alkyl group; R6 is a 4-20-membered nitrogen-containing heterocyclic group unsubstituted or substituted with a substituent group or a 5-20-membered nitrogen-containing heteroaryl group unsubstituted or substituted with a substituent group, where the substituent group is halogen, a hydroxyl group, a primary amino group, a secondary amino group, a C1-C12 alkyl group, or a C1-C12 alkoxy group; m is an integer ranging from 1000 to 10000; and n is an integer ranging from 10 to 1000. In the additive in this application, the group R6 is a nitrogen-containing heterocyclic group or a nitrogen-containing heteroaryl group.

公开(公告)号：US20240283099A1

公开(公告)日：2024-08-22

申请号：US18642832

申请日：2024-04-23

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu Xu ,  Shaojun Niu ,  Xing Li

IPC: H01M50/528 ,  H01M10/04 ,  H01M50/103 ,  H01M50/209 ,  H01M50/55 ,  H01M50/588

CPC classification number: H01M50/528 ,  H01M10/0404 ,  H01M50/103 ,  H01M50/209 ,  H01M50/55 ,  H01M50/588

Abstract: A battery cell, a battery, a power consumption device, and a method and device for producing a battery cell are provided. The battery cell includes: a housing which has an accommodating cavity and an opening at one end. The housing has a first wall which is adjacent to the opening; an electrode terminal, disposed on the first wall; an electrode assembly, accommodated in the accommodating cavity and having a tab; and a connecting component which is configured to electrically connect the electrode terminal and the tab and includes a first portion and a second portion that are relatively bent. The first portion is configured to be electrically connected to the electrode terminal, the second portion is configured to be electrically connected to the tab, and the tab is located between the second portion and the opening or the second portion is located between the tab and the opening.

公开(公告)号：US11936049B2

公开(公告)日：2024-03-19

申请号：US16732615

申请日：2020-01-02

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xing Li ,  Xiangyan Bu ,  Qingyuan Jiang ,  Guijiu Qu ,  Xiaowen Zhang ,  Quankun Li ,  Lingbo Zhu

IPC: H01M50/531 ,  H01M4/70 ,  H01M50/209 ,  H01M50/278 ,  H01M50/533 ,  H01M50/536 ,  H01M50/538

CPC classification number: H01M4/70 ,  H01M50/531 ,  H01M50/209 ,  H01M50/278 ,  H01M50/533 ,  H01M50/536 ,  H01M50/538

Abstract: The present disclosure relates to a battery unit and a battery module, the battery unit includes an electrode assembly, including a main body portion and a tab; two electrode terminals; and two current collecting members respectively connecting the tabs on both sides of the main body portion with the respective electrode terminals; the current collecting member includes a guiding plate and a supporting plate, the guiding plate is located on one side of the main body portion along the length direction, a reinforcement portion is arranged on the guiding plate and is configured to reduce the deformation of the guiding plate towards the main body portion; and the supporting plate is connected to an end of the guiding plate along the width direction, the tab is bent relative to the length direction and connected to the supporting plate. The battery unit can reduce the bending deformation of the guiding plate.

公开(公告)号：US20240055693A1

公开(公告)日：2024-02-15

申请号：US18494733

申请日：2023-10-25

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Wenlin Zhou ,  Liangfan Xu ,  Wenwei Chen ,  Xing Li ,  Quankun Li

IPC: H01M10/653 ,  H01M50/103 ,  H01M50/15 ,  H01M50/474 ,  H01M50/477 ,  H01M10/04

CPC classification number: H01M10/653 ,  H01M50/103 ,  H01M50/15 ,  H01M50/474 ,  H01M50/477 ,  H01M10/049 ,  H01M10/0404

Abstract: Provided are a battery cell, a battery, a power consuming apparatus, and a method and apparatus for manufacturing the battery cell, relating to the technical field of batteries. The battery cell includes a housing, an electrode assembly, an end cap, an insulator and a thermally conductive member. The housing is provided with an opening. The electrode assembly is configured to be accommodated in the housing. The end cap is configured to cover the opening. The insulator is located on the side of the end cap facing the electrode assembly, and the insulator is configured to isolate the end cap from the electrode assembly. The thermally conductive member is embedded in the insulator, and the thermally conductive member is configured to be attached to the end cap. Heat generated by the electrode assembly may be transferred to the end cap through the thermally conductive member.

公开(公告)号：US20230223669A1

公开(公告)日：2023-07-13

申请号：US18149674

申请日：2023-01-04

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Wenlin Zhou ,  Shengwang Chen ,  Liangfan Xu ,  Quankun Li ,  Xing Li

IPC: H01M50/586 ,  H01M50/103 ,  H01M50/593 ,  H01M50/15 ,  H01M50/209 ,  H01M10/04

CPC classification number: H01M50/586 ,  H01M50/103 ,  H01M50/593 ,  H01M50/15 ,  H01M50/209 ,  H01M10/0404 ,  H01M2220/20 ,  H01M2200/00

Abstract: A battery cell, a battery, an electrical device, and a method and device for manufacturing the battery cell. In some embodiments, the battery cell comprises a battery core, a shell, an end cover, and a first insulating component. The battery core comprises a main body part and electrode tabs protruding from the main body part. The shell has a first opening and is configured to accommodate the battery core. The end cover is configured to cover the first opening. The first insulating component comprises an insulating main body and an insulating part, wherein the insulating main body is located on a side, facing the electrode tabs, of the end cover, and the insulating main body is configured to isolate the battery core from the end cover.

公开(公告)号：US11682767B2

公开(公告)日：2023-06-20

申请号：US17866509

申请日：2022-07-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Jianghui Lin ,  Yanjie Zhao ,  Xing Li ,  Haizu Jin

IPC: H01M4/62 ,  C08F10/14 ,  C08G61/10

CPC classification number: H01M4/622 ,  C08F10/14 ,  C08G61/10

Abstract: A binder includes a copolymer including a building block (I) and a building block (II)




The building block (I) is formed by copolymerizing a building block (i)





and a building block (ii)

公开(公告)号：US20220384918A1

公开(公告)日：2022-12-01

申请号：US17817998

申请日：2022-08-08

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Hu Xu ,  Xing Li ,  Miaomiao Ren ,  Haizu Jin

IPC: H01M50/538 ,  H01M10/0587

Abstract: An electrode assembly and related battery, device, manufacturing method, and manufacturing device are provided. In some embodiments, the electrode assembly includes: a first electrode plate and a second electrode plate that are of opposite polarities, where an active material region of the first electrode plate and an active material region of the second electrode plate are wound to form a body portion, a non-active material region of the first electrode plate or a non-active material region of the second electrode plate is wound to form a tab, and the tab includes a bend portion bent against the body portion; and a guide piece. At least a part of the guide piece is located in the bend portion, and the guide piece is configured to guide an electrolytic solution into an interior of the body portion.

公开(公告)号：US20220376371A1

公开(公告)日：2022-11-24

申请号：US17818001

申请日：2022-08-08

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Hu Xu ,  Xing Li ,  Haizu Jin ,  Shaojun Niu ,  Miaomiao Ren

IPC: H01M50/70 ,  H01M10/0587 ,  H01M10/0525 ,  H01M50/528 ,  H01M50/107 ,  H01M50/152 ,  H01M50/627

Abstract: An electrode assembly, a battery cell, a battery, a device, a manufacturing method, and a manufacturing device are provided. In some embodiments, the electrode assembly includes at least two electrode plates, including a first electrode plate and a second electrode plate that are of opposite polarities. The first electrode plate and the second electrode plate are wound around a winding axis to form a multilayer structure. The multilayer structure includes an accommodation cavity extending along a direction of the winding axis. The accommodation cavity is configured to accommodate an electrolytic solution. The electrode assembly further includes at least one guide path extending along a first direction. The first direction is a direction perpendicular to the winding axis. The guide path is configured to guide the electrolytic solution out of the accommodation cavity.

公开(公告)号：US11133564B2

公开(公告)日：2021-09-28

申请号：US17043711

申请日：2019-11-15

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xing Li ,  Zhenhua Li ,  Haizu Jin

IPC: H01M4/62 ,  H01M50/581 ,  H01M4/66 ,  H01M4/02

Abstract: This application relates to a positive electrode plate and an electrochemical device. The positive electrode plate includes a current collector, a safety coating, a difficultly soluble layer and a positive active material layer, wherein the safety coating, the difficultly soluble layer and the positive active material layer are successively disposed on the current collector; wherein the safety coating includes a polymer matrix, a conductive material and an inorganic filler; wherein the difficultly soluble layer includes a binder and a conductive agent, and wherein the binder of the difficultly soluble layer has a solubility in an oil solvent smaller than the solubility of the polymer matrix of the safety coating in such oil solvent.