Contemporary Amperex Technology Co., Ltd.

Congmiao Wu

Taosheng Zhu

Zuyu Wu

Keqiang Li

Guodong Li

Zhiqiang Guo

Jianfeng Li

Long Zhou

Jinwei Lin

The present disclosure relates to a welding device and a processing apparatus for a secondary battery current collector. The welding device includes: a welding head; and an anvil block. A welding station is disposed between the welding head and the anvil block. The welding device is configured to weld a foil to a portion of a composite current collector at the welding station. According to this solution, the foil can be used as a tab of the composite current collector by using the foil to connect with the composite current collector so as to output the current in the battery cell.

Welding device and processing apparatus for secondary battery current collector

The present application discloses a current collector, an electrode plate, and an electrochemical device. The current collector comprises: a support layer comprising opposite two surfaces along the thickness direction thereof; a conductive layer disposed on at least one of the two surfaces of the support layer; wherein the support layer comprises a support material selected from one or more of a polymer material and a polymer matrix composite material, and wherein the light transmittance T of the support layer is 0&#x2264;T&#x2264;98%. The current collector, electrode plate and electrochemical device provided by the present application have good processability.

Current collector, electrode plate and electrochemical device

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Ningde, China

Congmiao Wu