公开(公告)号：US20240250348A1

公开(公告)日：2024-07-25

申请号：US18427675

申请日：2024-01-30

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

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

IPC: H01M50/107 ,  H01M10/0585 ,  H01M10/0587 ,  H01M50/103 ,  H01M50/209 ,  H01M50/213 ,  H01M50/30 ,  H01M50/51 ,  H01M50/548

CPC classification number: H01M50/107 ,  H01M10/0585 ,  H01M10/0587 ,  H01M50/103 ,  H01M50/209 ,  H01M50/213 ,  H01M50/30 ,  H01M50/51 ,  H01M50/548

Abstract: This application discloses a battery cell and a battery pack. The battery cell includes a housing and a bare cell located in an inner cavity of the housing. The bare cell includes at least two opposite extension ends and a middle region located between the two opposite extension ends of the bare cell. The two opposite extension ends of the bare cell are configured to be lower than the middle region of the bare cell in a height direction. The bare cell of this cell forms a structure that is high in the middle and low at edges, and a liquid level height of an electrolyte solution in the housing is below the middle region of the bare cell and above extension ends.

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：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：US20200161695A1

公开(公告)日：2020-05-21

申请号：US16433662

申请日：2019-06-06

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Haizu JIN ,  Xiaowen ZHANG ,  Zhenhua LI

IPC: H01M10/04 ,  H01M10/0565 ,  H01M4/525

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：US20200161639A1

公开(公告)日：2020-05-21

申请号：US16422866

申请日：2019-05-24

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Xiaowen ZHANG ,  Zhenhua Li ,  Haizu Jin

IPC: H01M4/36 ,  H01M4/62

Abstract: This application relates to a battery comprising a positive electrode plate, a separator, a negative electrode plate and an electrolyte, 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 the 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 the first polymer material comprises fluorinated polyolefin and/or chlorinated polyolefin polymer material. The battery has good safety and improved electrical properties, and the viscosity at normal temperature of the electrolyte is ≤4 cp.

公开(公告)号：US20200161624A1

公开(公告)日：2020-05-21

申请号：US16426871

申请日：2019-05-30

Applicant: Contemporary Amperex Technology Co., Limited

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

IPC: H01M2/34 ,  H01M4/62 ,  H01M4/66 ,  H01M10/0525 ,  H01G11/68 ,  H01G11/14

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. 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.

公开(公告)号：US20240234825A1

公开(公告)日：2024-07-11

申请号：US18617472

申请日：2024-03-26

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haihe XIAO ,  Xiaowen ZHANG ,  Shuangjuan PENG ,  Yaping HUANG ,  Qiang LIU ,  Baiqing LI ,  Haizu JIN

IPC: H01M10/0583 ,  H01M50/46 ,  H01M50/533 ,  H01M50/538

CPC classification number: H01M10/0583 ,  H01M50/46 ,  H01M50/533 ,  H01M50/538

Abstract: An electrode plate includes a folding guide portion. The folding guide portion guides folding of the electrode plate.

公开(公告)号：US20230335831A1

公开(公告)日：2023-10-19

申请号：US18211099

申请日：2023-06-16

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haihe XIAO ,  Xiaowen ZHANG ,  Xigen ZHOU ,  Yong TAO ,  Shuangjuan PENG ,  Yaping HUANG

IPC: H01M10/6557 ,  H01M50/209 ,  H01M10/6568 ,  H01M50/375

CPC classification number: H01M10/6557 ,  H01M50/209 ,  H01M10/6568 ,  H01M50/375

Abstract: Embodiments of this application provide a battery and an electric apparatus, where the battery includes: a plurality of battery cells; a heat exchange pad, disposed between two adjacent battery cells and configured to exchange heat with the battery cells; and a cooling pipe, configured to deliver cooling fluid, and the cooling pipe is provided with a plurality of outlets. The heat exchange pad is provided with inlets corresponding to the outlets, and the cooling pipe is configured to deliver the cooling fluid to the inlets of the heat exchange pad through the outlets. A flow channel that communicates with the inlets is further provided on the heat exchange pad, and the flow channel is configured to accommodate the cooling fluid to exchange heat between the cooling fluid and the battery cells. The technical solutions of the embodiments of this application can enhance the safety of the battery.

公开(公告)号：US20230198109A1

公开(公告)日：2023-06-22

申请号：US18108660

申请日：2023-02-13

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Haihe XIAO ,  Xiaowen ZHANG ,  Baiqing LI ,  Haizu Jin ,  Xigen ZHOU

IPC: H01M50/538 ,  H01M50/474 ,  H01M50/566 ,  H01M50/166 ,  H01M50/119 ,  H01M10/0587 ,  H01M50/548

CPC classification number: H01M50/538 ,  H01M50/474 ,  H01M50/566 ,  H01M50/166 ,  H01M50/119 ,  H01M10/0587 ,  H01M50/548

Abstract: A battery cell may include a housing, a first body structure, and a second body structure. The first body structure may be disposed in the housing. The first body structure may include a first positive electrode plate and a first negative electrode plate. A second body structure may be disposed in the housing. The second body structure may include a second positive electrode plate and a second negative electrode plate. The first body structure and the second body structure may be spaced out along a first direction. An end of the first positive electrode plate, which is oriented away from the second body structure along the first direction, may protrude beyond the first body structure and contacts a first inner surface of the housing, and the first negative electrode plate may be insulated from the first inner surface of the housing.

公开(公告)号：US20200343559A1

公开(公告)日：2020-10-29

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: H01M4/70 ,  H01M2/26

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.