公开(公告)号：US20230352689A1

公开(公告)日：2023-11-02

申请号：US18349954

申请日：2023-07-11

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Xiaoning HE ,  Wenwen XUE ,  Chengyong LIU ,  Jieliang ZOU ,  Chengbin ZHONG

IPC: H01M4/04 ,  H01M4/60 ,  H01M4/36 ,  H01M10/0587

CPC classification number: H01M4/602 ,  H01M4/0466 ,  H01M4/366 ,  H01M10/0587 ,  H01M2004/028

Abstract: An electrode assembly includes a positive electrode plate containing a positive active material and a negative electrode plate. The positive electrode plate includes a positive bend portion and a positive flat straight portion connected to the positive bend portion. At least a part of the positive active material of the positive bend portion includes a polymer coating layer capable of obstructing migration of active ions. A ratio of an ionic conductivity λ1 of the first bend portion to an ionic conductivity λ2 of the positive flat straight portion satisfies 0 ≤ λ1/λ2

公开(公告)号：US20230327220A1

公开(公告)日：2023-10-12

申请号：US18206560

申请日：2023-06-06

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Bobing HU ,  Jieliang ZOU ,  Chengyong LIU ,  Jiawei FU ,  Xiaoning HE ,  Shengyuan HUANG ,  Chengbin ZHONG

IPC: H01M4/04 ,  H01M4/131 ,  H01M10/42 ,  H01M10/0569 ,  H01M10/0525 ,  H01M4/525 ,  H01M4/505 ,  H01M10/054

CPC classification number: H01M10/4235 ,  H01M4/0435 ,  H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/054 ,  H01M10/0569 ,  H01M2300/0034

Abstract: This application provides a battery, and a method and apparatus for curbing battery gassing, and pertains to the field of battery technologies. The battery includes a battery housing, a positive electrode plate, a negative electrode plate, and a non-aqueous electrolyte. A gas reducer is disposed inside the battery housing, the gas reducer includes at least one of alkali metal and alkali metal alloy, and the gas reducer is in no contact with or in non-electrical contact with the negative electrode plate. The apparatus is provided with the foregoing battery. The method for curbing battery gassing includes disposing the gas reducer inside the battery housing, such that the gas reducer is in no contact with or in non-electrical contact with the negative electrode plate. Such battery features simple configuration, no limitation from gas scale effect, timely degassing, and high degassing capacity.

公开(公告)号：US20230275236A1

公开(公告)日：2023-08-31

申请号：US18311363

申请日：2023-05-03

Applicant: CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED

Inventor： Bobing HU ,  Shengyuan HUANG ,  Chengyong LIU ,  Jiawei FU ,  Xiaoning HE ,  Jieliang ZOU ,  Chengbin ZHONG

IPC: H01M4/66 ,  H01M4/04

CPC classification number: H01M4/667 ,  H01M4/661 ,  H01M4/0404

Abstract: A current collector includes a current collector body and a lithiophilic layer applied on a surface of the current collector body. The lithiophilic layer has lithium affinity and comprises a lithiophilic material. The lithiophilic material comprises an internal structure and an external structure, and the internal structure is a cavity.