ELECTRODE ASSEMBLY, BATTERY CELL, BATTERY, AND MANUFACTURING DEVICE AND METHOD FOR ELECTRODE ASSEMBLY

An embodiment of the present application provide an electrode assembly, a battery cell, a battery, and an electrode assembly manufacturing equipment and method. Among that, the electrode assembly includes a negative electrode plate and a positive electrode plate which form a bending region. The posi...

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Bibliographische Detailangaben
Hauptverfasser: WANG, Long, LIU, Huihui, LI, Zhonghong, CHE, Huan, ZHENG, Tuo, WU, Kai
Format: Patent
Sprache:eng
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Zusammenfassung:An embodiment of the present application provide an electrode assembly, a battery cell, a battery, and an electrode assembly manufacturing equipment and method. Among that, the electrode assembly includes a negative electrode plate and a positive electrode plate which form a bending region. The positive electrode plate includes bending portions located in the bending region, the bending portion includes a positive electrode current collecting layer and a positive active substance layer, and at least one side surface of the positive electrode current collecting layer is provided with the positive active substance layer in a thickness direction of the positive electrode plate. At least one positive active substance layer is provided with the barrier layer, at least a part of the barrier layer is intercalated in the positive active substance layer provided with the barrier layer, and coats at least a part of particles in the positive active substance layer.