BATTERY CELL AND MANUFACTURING METHOD AND MANUFACTURING SYSTEM THEREFOR, AND BATTERY AND ELECTRIC APPLIANCE

The application provides a battery cell, a manufacturing method, a manufacturing system, a battery and an electrical device. The battery cell of the embodiment of this application includes an electrode component; a casing for accommodating the electrode component and having an opening; an end cap for sealing the opening of the casing; a current collector member for electrically connecting the electrode component and the end cap, the current collector member comprising a base portion and an elastic portion connected to the base portion, the base portion and the elastic portion being located between the end cap and the electrode component, the base portion being configured to connect the end cap, at least a part of the elastic portion protruding from a surface of base portion facing the electrode component and abutting the electrode component, and the elastic portion being configured to be able to deform when squeezed by the electrode component. The elastic portion abuts against the electrode component, so the elastic portion is not required to be welded to the electrode component, thus reducing metal particles to lower the risk of short circuit. The elastic portion is able to deform when squeezed by the electrode component and release the pressure therebetween by deformation, reducing the risk of crushing the electrode component due to excessive pressure.