Contemporary Amperex Technology Co., Ltd.

Contemporary Amperex Technology (Hong Kong) Limited

Contemporary Amperex Technology Limited

Tao Zhang

Yonghuang Ye

Qian Liu

Jianfu He

Tiefeng Wu

Nengwu Liao

Shaojun Qiu

Xiangqiang Huang

Yuhuai Yang

Chengdu Liang

Yongsheng Guo

Chengyong Liu

Xueyang Sun

Quan Fan

Zhihui Zhen

Yunfei Ma

Jun Yang

A suction gun includes a gun head is provided with a material suction port configured to suck a material located in an area for sucking, and an air blowing structure including an air blowing pipe and an air blowing hole provided on a pipe wall of the air blowing pipe. The air blowing hole is configured to blow an air flow so as to blow the material to the material suction port.

Suction gun and material suction device

An electrode assembly, secondary battery, battery module, battery pack and electrical device are provided. In some embodiments, the electrode assembly comprises a positive electrode plate, a negative electrode plate and a separator disposed between the positive electrode plate and the negative electrode plate, the positive electrode plate satisfies 0<CAP1/CAP2<1, in which CAP1 represents capacity of the first positive electrode film layer in Ah, CAP2 represents capacity of the second positive electrode film layer in Ah, and the electrode assembly satisfies R/R−R/R≥0, in which Rrepresents resistance of the first positive electrode film layer in Ω, Rrepresents resistance of the second positive electrode film layer in Ω, Rrepresents resistance of the first negative electrode film layer in mΩ and Rrepresents resistance of the second negative film layer in mΩ. The present applicant may extend the cycle life of the secondary battery.

Electrode assembly, secondary battery, battery module, battery pack and electrical device

An electrode assembly, secondary battery, battery module, battery pack and electrical device are provided. In some embodiments, the electrode assembly comprises a positive electrode plate, a negative electrode plate and a separator disposed between the positive electrode plate and the negative electrode plate, the positive electrode plate satisfies CAP1=CAP2, in which CAP1 represents capacity of the first positive electrode film layer in Ah, CAP2 represents capacity of the second positive electrode film layer in Ah, and the electrode assembly satisfies |R/R−R/R|>0, in which Rrepresents resistance of the first positive electrode film layer in Ω, Rrepresents resistance of the second positive electrode film layer in Ω, Rrepresents resistance of the first negative electrode film layer in mΩ and Rrepresents resistance of the second negative film layer in mΩ. The present applicant may extend the cycle life of the secondary battery.

The present application provides a deviation-correcting method and apparatus for double-sided coating, and relates to the technical field of manufacturing of batteries. The method includes: acquiring a first distance between an edge of a coating area on a first surface of an electrode plate substrate and an edge of the electrode plate substrate from a deviation-correcting cross section; acquiring a second distance between an edge of a coating area on a second surface of the electrode plate substrate and the edge of the electrode plate substrate from the deviation-correcting cross section; determining edge deviation information of the coating areas; determining a first deviation-adjusting range; and in a case that a first intersection is present in the first deviation-correcting range, determining a deviation-correcting quantity of the electrode plate substrate. According to the method, the problem of the deviation of the coating areas in the coating process can be improved.

Deviation-correcting method and apparatus for double-sided coating

Disclosed are a lithium metal composite electrode material for a lithium metal battery, a preparation method for the same, and an electrode, battery, battery module, battery pack and apparatus comprising the same. The lithium metal composite electrode material comprises: lithium metal particles and a lithium-containing conductive layer serving as a supporting framework, the supporting framework being filled with the lithium metal particles; wherein the lithium-containing conductive layer comprises an inorganic lithium compound and a lithium alloy. The lithium metal composite electrode material can solve the problems that, when lithium metal is used as a negative electrode, the electrolyte is easily consumed, and lithium dendrites are easily produced, deposited and dissolved to change electrode thickness, which in turn affects the cycle stability, electrical performance and structural stability of the battery, so as to achieve the purpose of improving the structural stability and cycle stability of the lithium metal electrode.

Metal lithium metal, supporting framework, and inorganic lithium compound, method for preparing the same, and electrode, battery, battery module, battery pack and apparatus comprising the same

An electrode plate processing device is provided. The electrode plate processing device includes: an electrode plate conveying mechanism configured to convey an electrode plate; a cutting mechanism disposed opposite to the electrode plate and configured to cut the electrode plate to form a tab; and a waste adsorption mechanism disposed downstream of the cutting mechanism along a conveying direction of the electrode plate. The waste adsorption mechanism includes an active driving roller, a driven support roller, and a conveyer belt that is coupled to the active driving roller and the driven support roller in a transmission way. The conveyer belt is driven by the active driving roller to rotate and configured to provide an adsorption force to a waste edge produced during the cutting of the electrode plate so as to adsorb the waste edge.

Electrode plate processing device

The present disclosure relates to an electrode plate processing device. The electrode plate processing device includes: an electrode plate cutting mechanism having a cutting position; and an electrode plate rolling mechanism, through which an electrode plate passes. The electrode plate rolling mechanism includes a first roller and a second roller. The first roller has a vacuum adsorption zone for adsorbing a waste edge of the electrode plate. The cutting position is provided in upstream of the vacuum adsorption zone along a conveying direction of the electrode plate processing device.

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Ningde, China

Tao Zhang