BATTERY CELL AND MANUFACTURING METHOD AND MANUFACTURING SYSTEM THEREFOR, BATTERY, AND POWER CONSUMING DEVICE

Some embodiments of this application provide a battery cell, a method and system for manufacturing same, a battery, and an electrical device. The battery cell according to an embodiment of this application includes: a housing, on which an opening is made; an electrode assembly, accommodated in the housing, where the electrode assembly includes a first tab at an end oriented toward the opening; an end cap, configured to fit and cover the opening to seal the electrode assembly in the housing; a current collecting member, disposed between the end cap and the first tab, where the current collecting member is configured to be welded to the end cap and the first tab separately to implement electrical connection between the end cap and the first tab. This application reduces the risk that microcracks occur on the end cap during welding of the end cap, and improves airtightness and safety.