公开(公告)号：US20240178493A1

公开(公告)日：2024-05-30

申请号：US18428650

申请日：2024-01-31

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Siying HUANG ,  Fenggang ZHAO ,  Xueqi ZHONG ,  Xing LI ,  Shaojun NIU ,  Wenqi ZHU

IPC: H01M50/188 ,  H01M50/107 ,  H01M50/179 ,  H01M50/184 ,  H01M50/213 ,  H01M50/249 ,  H01M50/528 ,  H01M50/531

CPC classification number: H01M50/188 ,  H01M50/107 ,  H01M50/179 ,  H01M50/184 ,  H01M50/213 ,  H01M50/249 ,  H01M50/528 ,  H01M50/531 ,  H01M2220/20

Abstract: A battery cell includes a housing, an end cap, an electrode terminal, an electrode assembly, and an insulating member. The housing has an opening. The end cap is provided for covering the opening. The electrode terminal is in insulated connection with the end cap. The electrode assembly is housed within the housing and includes a main body and first and second tabs. The first and second tab have different polarities and are disposed on a same end of the main body facing the end cap. One of the first and second tabs is provided for electrically connecting the end cap, and the other one is provided for electrically connecting the electrode terminal. The insulating member is at least partially located between the first tab and the second tab, and abuts against the main body along a thickness direction of the end cap.

公开(公告)号：US20230207947A1

公开(公告)日：2023-06-29

申请号：US17967845

申请日：2022-10-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Yu TANG ,  Peng WANG ,  Xiayi WU ,  Zhenhua LI ,  Xing LI

IPC: H01M50/264 ,  H01M50/209 ,  H01M50/271 ,  H01M50/147 ,  H01M10/04

CPC classification number: H01M50/264 ,  H01M50/209 ,  H01M50/271 ,  H01M50/147 ,  H01M10/0431 ,  H01M2220/20

Abstract: Provided are battery, electric device, method for manufacturing battery, and device for manufacturing battery. The battery includes: multiple battery cells, wherein a wall with the largest area among outer walls of each battery cell is provided parallel to horizontal plane; and a binding component, accommodating and binding the multiple battery cells, wherein a reinforcing portion is provided at part of the binding component parallel to the wall with the largest area, and the reinforcing portion reinforces the strength of the binding component, to enhance binding force of the binding component to the multiple battery cells. The binding force to the walls with the largest area among outer walls of the battery cells is enhanced, too much expansion and deformation of the battery cells is avoided, and the failure probability of the battery caused by extrusion to other structural parts of the battery after the battery cells expand is reduced.

公开(公告)号：US20200161623A1

公开(公告)日：2020-05-21

申请号：US16422869

申请日：2019-05-24

Applicant: Contemporary Amperex Technology Co., Limited

Inventor： Yaohui WANG ,  Zhenhua LI ,  Xing LI

IPC: H01M2/34 ,  H01M4/66 ,  H01G11/68 ,  H01G11/18

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, wherein the safety coating comprises a polymer matrix, a conductive material and an inorganic filler, wherein the polymer matrix comprises at least two types of polymer materials, and the first type of polymer material is fluorinated polyolefin and/or chlorinated polyolefin, and the solubility of the second type of polymer material in oil solvent is smaller than the solubility of the first type of polymer material; and the weight percentage of the first type of polymer material relative to the total weight of the polymer matrix, the conductive material and the inorganic filler is 17.5% or more. The positive electrode plate improves high temperature safety of electrochemical device.

公开(公告)号：US20240222759A1

公开(公告)日：2024-07-04

申请号：US18602845

申请日：2024-03-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Hu XU ,  Haizu JIN ,  Xing LI ,  Shaojun NIU

IPC: H01M50/209 ,  H01M10/04 ,  H01M50/103 ,  H01M50/548

CPC classification number: H01M50/209 ,  H01M10/0431 ,  H01M50/103 ,  H01M50/548

Abstract: A battery cell includes a first electrode assembly and a second electrode assembly, where the first electrode assembly and the second electrode assembly differ in size and/or capacity so as to fit a structure of the battery cell.

公开(公告)号：US20230335743A1

公开(公告)日：2023-10-19

申请号：US18333255

申请日：2023-06-12

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Zhenhua LI ,  Xinzhan WU ,  Qiang GUO ,  Xiayi WU ,  Hanli FU ,  Ziyu YANG ,  Xing LI ,  Shaojun NIU ,  Haizu JIN

IPC: H01M4/62 ,  H01M10/0525 ,  H01M4/04

CPC classification number: H01M4/624 ,  H01M10/0525 ,  H01M4/0404 ,  H01M2004/028

Abstract: A positive electrode composite material for a lithium ion secondary battery includes a positive electrode active material and a positive electrode additive. The positive electrode additive includes at least one of oxides, sulphides, peroxides, azides, or oxycarbides of sodium or potassium.

公开(公告)号：US20220352573A1

公开(公告)日：2022-11-03

申请号：US17528600

申请日：2021-11-17

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Lei WANG ,  Wenlin ZHOU ,  Xing LI ,  Peng WANG ,  Quankun LI ,  Xingdi CHEN ,  Yulian ZHENG

IPC: H01M10/653 ,  H01M10/613 ,  H01M50/15 ,  H01M50/55 ,  H01M50/531

Abstract: The embodiments of this application provide a battery cell, a battery, a power consumption device, and a battery manufacturing method and device, which pertains to the technical field of batteries. The battery cell includes a housing, an electrode assembly, and an end cover assembly. The electrode assembly is configured to be accommodated in the housing, and includes a main body portion and a tab. The end cover assembly includes an end cover configured to cover the opening and an electrode terminal mounted on the end cover and is configured to be electrically connected to the tab. The end cover includes a first body, which has a first inner surface and a first outer surface arranged opposite to each other in a thickness direction of the first body, and a first protruding portion, which protrudes from the first outer surface in a direction departing from the main body portion.